ĐỀ SỐ 03
A. PHONETICS & GRAMMAR
I. Choose the word that has different pronunciation. (1m)
a. produce b. product c. production d. much
a. a
anges b. makes c. finishes d. sentences
a. who b. what c. where d. which
a. head b. beach c. weather d. heavy
II. Multiple choice. (2ms)
1. Do you need any help?
a. How can I help? b. Yes, that's very kind of you
c. What can I do for you? d. Certainly
2. I'm so
y. My mother is out. Would you like to ____________ her a message?
1
a. write b. take c. tell d. leave
3. I'm bored ____________ living here. It's very noisy here.
a. with b. to c. of d. from
4. We hate ____________ the same things everyday.
a. to do b. do c. doing d. did
5. I am ____________ to buy this car.
a. enough rich not b. enough not rich c. not rich enough d. not enough rich
6. In order to keep fit we should do exercises ____________
a. regular b. regularly c. regulating d. regulation
7. She advised me ____________ late
a. not b. not to be c. not be d. to be
8. My father used ____________ us to the zoo when he was alive.
a. took b. taking c. to take d. take
B. READING
III. Read the passage and answer the questions. (2ms)
A new shopping mall is opening in Nam's neighborhood today. It opens from Monday to Sunday. It is very different from the present shopping area. All the shops are under one roof. That will be very convenient, especially during the hot and humid summer months. Customers will shop in comfort and won't notice the weather.
Questions:
1. What is there in Nam's neighborhood?
....................................................................................
2. What is special about the new shopping mall?
....................................................................................
3. How often does the mall open?
....................................................................................
4. Will the customers notice the weather when they shop in the mall?
....................................................................................
C. WRITING
IV. Do as directed. (5ms)
1. The book is very cheap. You should buy it. (Combine the sentences with “enough”)
....................................................................................
2. He is so fat. He eats a lot of meat. (Use “ought to” to give advice)
....................................................................................
3. The teacher said to her students: Please do your exercise.
The teacher told ......................................................................
4. I am short but my
other is tall.
I am ...........................................................................
5. He is a bad English speaker.
He speaks ...........................................................................
(Write the sentences, beginning with the cues given)
6. The children like to walk in the rain. (Replace “like” by “enjoy”)
....................................................................................
7. He felt (sleep) after working all day. (give the co
ect form of the adjective in the
ackets)
....................................................................................
8. I've learnt English for three years. (Make a question with the underlined words)
....................................................................................
9. He made a good (impress) on your parents, (give the co
ect form of the adjective in the
ackets).
....................................................................................
10. Tom is learning to fly. (Rewrite the second sentence)
He is going...........................................................................
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ĐỀ SÔ 1A. PHONETICS (5 points)Choose the word whose underlined part is pronounced differently from the others.1. A. happy B. apple C. act D. aunt2. A. health B. team C. tea D. sea3. A. decided B. learned C. listened D. enjoyed4. A. hard B. hour C. hundred D. hobby5. A. find ...
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ĐỀ SÔ 1
A. PHONETICS (5 points)
Choose the word whose underlined part is pronounced differently from the others.
1. A. happy B. apple C. act D. aunt
2. A. health B. team C. tea D. sea
3. A. decided B. learned C. listened D. enjoyed
4. A. hard B. hour C. hundred D. hobby
5. A. find B. bike C. fit D. tidy
B. GRAMMAR - VOCABULARY - LANGUAGE FUNCTIONS
I. Choose the best option to complete the following sentences. (20 pts)
6. I prefer music shows __________ fashion shows.(A. to B. than C. rather than D. better than)
7. __________ going swimming? - That’s OK.(A. How about B. Let’s C. Shall we D. Why not)
8. My mother didn’t buy pork but I ________________.(A. did B. didn’t C. do D. don’t)
9. Is it easy to get a pair of tickets now? - ________.(A. No, it is B. No, it does not C. Yes, it is D. Yes. It does)
10. How long does __________ take you to get to school every day?(A. he B. she C. it D. they
11. What do you usually do __________ recess?(A. on B. at C. in D. about)
12. I don’t like durian, and ___________ does my mother.(A. so B. either C. neither D. too)
13. This program is __________ than the one we saw last night.(A. good B. well C. more good D. better)
14. Singing before the class is an interesting __________.(A. act B. action C. activity D. actor)
15. She enjoys __________ old coins and stamps.(A. collect B. to collect C. collecting D. collected)
16. __________ did you read that book? – Yesterday morning.(A. Where B. When C. Why D. How
17. Vinh ate Chinese Fried Rice and __________ Hai.(A. either does B. so does C. so did D. too does
18. Are you scared __________ going out at night?(A. in B. to C. for D. of
19. What kinds of ___________ do you like? – I like cartoons.(A. films B. books C. sports D. activities
20. Everybody ___ the symptoms, but nobody ___ a cure(.A. know-know B. knows-knows C. know-knows D. knows-know
21. You can use the ___ to find out her telephone number.
A. telephone book B. telephone box C. telephone directory D. telephone
22. What is _________ with you? - I have a runny nose.(A. matterB. problem C. wrong D. false
23. I like __________ chess with Huy on Sunday afternoons.(A. play B. to play C. playing D. played
24. What is the ___________ of the river? - About 2 meters.(A. length B. depth C. width D. height
25. Would you like to come to my house for lunch? - _______(A. Yes, I do B. Yes. I’d love toC. Yes, I like D. OK. I’d like
II. Match the item in column A with the item in column B (5pts)
III. Give the correct form or tense of the verbs in the brackets. (5 pts)
31. I (write) _________ you a letter when I come to London next month.
32. Our family (come) _________ back home from Ho Chi Minh two days ago.
33. I can’t go out now because it (rain) _________.
34. Linda never (drink) _________ coffee in the evening.
35. Your parents (water) _________ flowers in the garden now?
IV. Each sentence below contains AN error among the 4 underlined parts. Find it. (5 pts)
36. The doctor says you should spend a little time to play video games.
A B C D
37. There is a ten-floors building and two hotels in front of the hospital.
A B C D
38. Mr. Long will get used to travel to work by bicycle soon.
A B C D
39. There are less TV programs for teenagers than there are for adults.
A B C D
40. The teacher says Ba was a famous pilot in the future.
A B C D
C. READING
I. Choose one suitable word to complete the following passage (10pts).
get | own | leave | about | very |
a | off | using | takes | catch |
I (41) _________ for work about 6.30 a.m and I walk to a bus stop not (42) _________ far from my house. I (43) _________ a bus that comes by around 6.45. The bus isn’t very crowded when I (44) _________ on, but it fills up by the end of the line. Then, I get (45) _________ the bus and catch a train going into town. The train lasts (46) _________ 30 minutes, and it’s usually standing-room only. The train stops near my office and the whole trip (47) _________ about an hour. I buy a monthly bus ticket, so I save (48) _________ lot of money by (49) _________ public transportation instead of driving my (50) _________ car.
II. Read the following passage and fill in each numbered blank with one suitable word. (10 pts)
In the summer holiday, Mr. and Mrs. Brown and their children, Peter and Susan often go to the beach for two or three days. They always go to Vung Tau in the south (51) _________ Vietnam. They usually stay in a small (52) _________ or a flat by the sea, but sometimes they stay in a hotel. (53) _________ summer, they went to Nha Trang. They stayed at the Sun Sight hotel for three days. In the morning, Peter played soccer with his father on the beach. Susan and her mother walked along the beach and built sand castles. They visited Tri Nguyen (54) _________ and saw different kinds of fish there. They also (55) _________ a lot of souvenirs for friends.
III. Read the following passage and answer the questions below (10 pts).
Headache is a very common disease in the USA. Every year, about fifty million people have to go to the doctor because of headache. The symptoms of a headache are various. People can see black dots or bright spots in front of their eyes. They may also have pains only on one side of the head. Sometimes when the pain goes away, the head is sore. People have headache when they work too hard or they are too nervous about something. Medicine can help cure the disease but people usually have to do more than taking tablets. They can prevent headaches by changing their diets or their lifestyle or simply by going to bed.
* Questions:
56. Why is headache a common disease in the USA?......................................................./………………………………….
57. What can people see when they have headaches? ...................................................../…………………………………
58. Can people have pains on only one side of the head? ...................................................../…………………………………
59. When do people have headaches? ...................................................../…………………………………
60. How can they prevent headaches? ...................................................../…………………………………
D. WRITE
I. Rewrite the following sentences using the words provided in such a way that they mean the same as the original sentences. (10 pts)
61. Viet runs faster than Minh.
=> Minh...................................................../…………………………………
62. His house has four rooms.
=> There are ...................................................../…………………………………
63. Cuc is short. Hong is taller than Cuc. Lan is shorter than Cuc.
=> Lan is ...................................................../…………………………………
64. Manh drives carefully.
=> Manh ...................................................../…………………………………
65. How high is the wall?
=> What ...................................................../…………………………………_?
ĐỀ SÔ 1
A. PHONETICS (5 points)
Choose the word whose underlined part is pronounced differently from the others.
1. A. happy B. apple C. act D. aunt
2. A. health B. team C. tea D. sea
3. A. decided B. learned C. listened D. enjoyed
4. A. hard B. hour C. hundred D. hobby
5. A. find B. bike C. fit D. tidy
B. GRAMMAR - VOCABULARY - LANGUAGE FUNCTIONS
I. Choose the best option to complete the following sentences. (20 pts)
6. I prefer music shows __________ fashion shows.(A. to B. than C. rather than D. better than)
7. __________ going swimming? - That’s OK.(A. How about B. Let’s C. Shall we D. Why not)
8. My mother didn’t buy pork but I ________________.(A. did B. didn’t C. do D. don’t)
9. Is it easy to get a pair of tickets now? - ________.(A. No, it is B. No, it does not C. Yes, it is D. Yes. It does)
10. How long does __________ take you to get to school every day?(A. he B. she C. it D. they
11. What do you usually do __________ recess?(A. on B. at C. in D. about)
12. I don’t like durian, and ___________ does my mother.(A. so B. either C. neither D. too)
13. This program is __________ than the one we saw last night.(A. good B. well C. more good D. better)
14. Singing before the class is an interesting __________.(A. act B. action C. activity D. actor)
15. She enjoys __________ old coins and stamps.(A. collect B. to collect C. collecting D. collected)
16. __________ did you read that book? – Yesterday morning.(A. Where B. When C. Why D. How
17. Vinh ate Chinese Fried Rice and __________ Hai.(A. either does B. so does C. so did D. too does
18. Are you scared __________ going out at night?(A. in B. to C. for D. of
19. What kinds of ___________ do you like? – I like cartoons.(A. films B. books C. sports D. activities
20. Everybody ___ the symptoms, but nobody ___ a cure(.A. know-know B. knows-knows C. know-knows D. knows-know
21. You can use the ___ to find out her telephone number.
A. telephone book B. telephone box C. telephone directory D. telephone
22. What is _________ with you? - I have a runny nose.(A. matterB. problem C. wrong D. false
23. I like __________ chess with Huy on Sunday afternoons.(A. play B. to play C. playing D. played
24. What is the ___________ of the river? - About 2 meters.(A. length B. depth C. width D. height
25. Would you like to come to my house for lunch? - _______(A. Yes, I do B. Yes. I’d love toC. Yes, I like D. OK. I’d like
II. Match the item in column A with the item in column B (5pts)
III. Give the correct form or tense of the verbs in the brackets. (5 pts)
31. I (write) ___will write______ you a letter when I come to London next month.
32. Our family (come) ___came______ back home from Ho Chi Minh two days ago.
33. I can’t go out now because it (rain) __is raining______.
34. Linda never (drink) ____drinks_____ coffee in the evening.
35. Your parents (water) _____Are-watering____ flowers in the garden now?
IV. Each sentence below contains AN error among the 4 underlined parts. Find it. (5 pts)
36. The doctor says you should spend a little time to play video games.
A B C D
37. There is a ten-floors building and two hotels in front of the hospital.
A B C D
38. Mr. Long will get used to travel to work by bicycle soon.
A B C D
39. There are less TV programs for teenagers than there are for adults.
A B C D
40. The teacher says Ba was a famous pilot in the future.
A B C D
C. READING
I. Choose one suitable word to complete the following passage (10pts).
get | own | leave | about | very |
a | off | using | takes | catch |
I (41) ___leave______ for work about 6.30 a.m and I walk to a bus stop not (42) ___very______ far from my house. I (43) _____catch____ a bus that comes by around 6.45. The bus isn’t very crowded when I (44) ____get_____ on, but it fills up by the end of the line. Then, I get (45) ____off_____ the bus and catch a train going into town. The train lasts (46) _____about____ 30 minutes, and it’s usually standing-room only. The train stops near my office and the whole trip (47) __takes_______ about an hour. I buy a monthly bus ticket, so I save (48) ____a_____ lot of money by (49) ____using_____ public transportation instead of driving my (50) ____own_____ car.
II. Read the following passage and fill in each numbered blank with one suitable word. (10 pts)
In the summer holiday, Mr. and Mrs. Brown and their children, Peter and Susan often go to the beach for two or three days. They always go to Vung Tau in the south (51) ____of_____ Vietnam. They usually stay in a small (52) _____hotel____ or a flat by the sea, but sometimes they stay in a hotel. (53) ______In___ summer, they went to Nha Trang. They stayed at the Sun Sight hotel for three days. In the morning, Peter played soccer with his father on the beach. Susan and her mother walked along the beach and built sand castles. They visited Tri Nguyen (54) ___Aquarium______ and saw different kinds of fish there. They also (55) ____buy_____ a lot of souvenirs for friends.
III. Read the following passage and answer the questions below (10 pts).
Headache is a very common disease in the USA. Every year, about fifty million people have to go to the doctor because of headache. The symptoms of a headache are various. People can see black dots or bright spots in front of their eyes. They may also have pains only on one side of the head. Sometimes when the pain goes away, the head is sore. People have headache when they work too hard or they are too nervous about something. Medicine can help cure the disease but people usually have to do more than taking tablets. They can prevent headaches by changing their diets or their lifestyle or simply by going to bed.
* Questions:
56. Why is headache a common disease in the USA?..................Because Every year, about fifty million people have to go to the doctor because of headache...................................../………………………………….
57. What can people see when they have headaches? .................People can see black dots or bright spots in front of their eyes...................................../…………………………………
58. Can people have pains on only one side of the head? ..........Yes, they can.........................................../…………………………………
59. When do people have headaches? ................. People have headache when they work too hard or they are too nervous about something. ..................................../…………………………………
60. How can they prevent headaches? ...................They can prevent headaches by changing their diets or their lifestyle or simply by going to bed.................................../…………………………………
D. WRITE
I. Rewrite the following sentences using the words provided in such a way that they mean the same as the original sentences. (10 pts)
61. Viet runs faster than Minh.
=> Minh..........runs more slowly than Viet.........................................../…………………………………
62. His house has four rooms.
=> There are ................4 rooms in his house...................................../…………………………………
63. Cuc is short. Hong is taller than Cuc. Lan is shorter than Cuc.
=> Lan is .........the shortest of the 3 girls.........................................../…………………………………
64. Manh drives carefully.
=> Manh ..........is a careful driver.........................................../…………………………………
65. How high is the wall?
=> What ............is the height of the wall........................................./…………………………………_?
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kiểm tra giúp mik coi được bao nhiêu điểm , mỗi câu 0,2 điểm Đề thi tiếng Anh vào 10 - Đề 1A: PHONETICS (1.0 p)I. Choose the word with different pronunciation from the others. (0.6p)1. A. hourB. houseC. hotD. head2. A. workedB. wantedC. stoppedD. asked3. A. walksB. cupsC. studentsD. pensII. Choose the word whose stress pattern is different from that of the others. ( 1.0 pts)1.A. sewageB. simpleC. hobbyD. describe2. A. dancerB. cyclingC. balloonD. traffic.B: VOCABULARY AND GRAMMAR: (5.0pts)I. Cho...
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kiểm tra giúp mik coi được bao nhiêu điểm , mỗi câu 0,2 điểm
Đề thi tiếng Anh vào 10 - Đề 1
A: PHONETICS (1.0 p)
I. Choose the word with different pronunciation from the others. (0.6p)
1. A. hour | B. house | C. hot | D. head |
2. A. worked | B. wanted | C. stopped | D. asked |
3. A. walks | B. cups | C. students | D. pens |
II. Choose the word whose stress pattern is different from that of the others. ( 1.0 pts)
1.A. sewage | B. simple | C. hobby | D. describe |
2. A. dancer | B. cycling | C. balloon | D. traffic. |
B: VOCABULARY AND GRAMMAR: (5.0pts)
I. Choose the best answer. (2.0p)
1. Solar energy doesn’t cause………..
A. pollution
B. polluted
C. pollute
D. pollutant
2. Tet is a festival………… occurs in late January or early February.
A. whom
B. when
C. where
D. which
3. It’s raining. …………….., Mr. Nam has to go to work.
A. Although
B. So
C. Therefore
D. However
4. If I ………….rich, I ……………………….around the world.
A. will be - travel
B. am - will travel
C. were - would travel
D. would be – traveled
5. The girl wishes she………………… in Hue for the festival next week.
A. had stayed
B. was staying
C. stay
D. could stay
6. You don’t like watching this film, …………………?
A. don’t you
B. are you
C. do you
D. did you
7. When he lived in the city, he …………… to the theater twice a week.
A. uses to go
B. has gone
C. used to going
D. was going
8. My house………….. in 1999
A. is built
B. was building
C. was built
D. has been built
9. The entrance examination will be held………………….June 22nd2012.
A. in
B. on
C. at
D. to
10. Hoa: I suggest going camping next Sunday.- Lan: …………………………..
A. That’s a fine day
B. That’s a good idea
C. That’s a reason
D. That’s a good trip
II. Put the verbs in the brackets into the correct tense or form.(2.0p)
1. The weather is terrible today. If the weather (be)…is…… good, I (go)..will go...for a walk.
2. Yesterday, when we (visit)…visited…. them, they (have)..was having.. dinner.
3. I ( write ).wrote. to my pen pal 2 months ago, but I (not receive).hasn’t receive. his reply since then.
4. We would rather (stay)..staying..at home than go out on rainy days.
5. I enjoy (teach)..teaching.., but I don't want (do)..to do..all my life.
6. My house (build)…is builds …..at present.
III/ Supply the correct form of the words in brackets to complete the following sentences. (1.0p)
1. The accident happened because he drove …carelessly... (care)
2. Ai…pollution…is one of the problems that people have deal to with. (pollute)
3. Traditional …celebration... are a good source of fun and entertainment. (celebrate)
4. You should buy this book . It’s very.. informative .. (inform)
5. (Tradition)…traditional..., people eat sticky rice cakes at Tet.
C: READING. ( 2.0 p)
I. Read the text. Then choose the right sentence A, B, C or D.(1.0p)
Last year, we had a nice holiday. My friend and I went to the seaside for a month. I had been to the seaside several times before, but this was the first time for my friend. Naturally, it was the great event for him. Finally, the day came. It was a fine morning. We got up very early because we wanted to leave home after breakfast. We made the journey by car. We reached the seaside at noon. We spent many hours on the beach. We enjoyed making castles and channels in the sand. People said we ought to spend at least a few weeks at the seaside. If we could stay longer, so much the better.
1.How long did the writer and his friend spend at the seaside?
A. week
B. A few weeks
C. A month
D. A few months
2. Who went to the seaside the first time?
A. The writer
B. The writer and his friend.
C. The writer's family
D. The writer's friend.
3. What was the weather like on the day they started their journey to the seaside?
A. It was bad
B. It was rainy
C. It was snowy
D. It was nice.
4. How did they travel to the seaside?
A. By car
B. By train
C. By bus
D. By air
5. When did they reach the seaside?
A. At 8 o'clock
B. At 12 o'clock
C. At 4 p.m
D. At 9 p.m
II. Read the passage and answer the following questions. (1.0p)
Alexander Fleming was born in 1881 in Scotland. He went to a small school in a village, and when he left school he didn’t go to university. He worked for five years in an office. But his brother, Tom, was a doctor and helped Fleming to go to university and study medicine. So he went to London University and in 1906 he became a doctor. In 1915, Fleming married Sarah McElroy, an Irish woman. They had one son. During the First World War, many soldiers died in hospital because they didn’t have the right medicines. So after the war, Fleming tried to find a drug that could help them. He worked for many years and in 1928 he discovered a new drug and he called it “penicillin”. He later worked with an Australian and a German scientist to develop a drug that doctors could use. In 1945, they won the Nobel Prize in medicine for their work on penicillin.
1. Where was Alexander Fleming born?
…It was in Scotland……………………………
2. Did he work in an office before he went to university? ……….………………………….………..
3. What did he study at university? ………………………………………………………….………
4. When did he win the Nobel Prize in medicine? …………………………………………….………
D: WRITING (2.0p)
I. Complete the second sentences without changing the meaning of the first sentences. (1.0p)
1. He has never been late for work.
- Never……………………………………………………………………………………
2. The man is my new boss. He is talking to the lady over there.
- The man …is my new boss who is talking to the lady over there…………
3. “Does Mr. Pike live here?” the postman asked the boy.
- The postman asked the boy ……………………………………….…………………….
4. They will build a new school next month.
- A new school……………………will be built next month……………………….
5. Finding an apartment in a big city is not easy.
- It is …...........................................................................................................................
II. Write complete sentences. (1.0p)
1.we /not/ see/ each other/ for/ 5 years.
……………………………………………………………………………………………
2. Mr Bill/ used/ go /swimming/ when/ he/ young.
…Mr Bill is used to go swimming when he young.……
3. She / be / best / student / class.
…………………………………………………………………………………………
4. How long / it / take / you / go / school / everyday?
…………………………………………………………………………………………
A: PHONETICS (1.0 p)
I. Choose the word with different pronunciation from the others. (0.6p)
1. C. hot
2. B. wanted
3. D. pens
II. Choose the word whose stress pattern is different from that of the others. ( 1.0 pts)
1. A. sewage
2. C. balloon
B: VOCABULARY AND GRAMMAR: (5.0pts)
I. Choose the best answer. (2.0p)
1. A. pollution
2. D. which
3. B. So
4. C. were - would travel
5. D. could stay
6. C. do you
7. C. used to going
8. C. was built
9. B. on
10. B. That’s a good idea
II. Put the verbs in the brackets into the correct tense or form.(2.0p)
1. The weather is terrible today. If the weather is good, I will go for a walk.
2. Yesterday, when we visited them, they were having dinner.
3. I wrote to my pen pal 2 months ago, but I haven't received his reply since then.
4. We would rather stay at home than go out on rainy days.
5. I enjoy teaching, but I don't want to do it all my life.
6. My house is being built at present.
III/ Supply the correct form of the words in brackets to complete the following sentences. (1.0p)
1. The accident happened because he drove carelessly. (care)
2. Air pollution is one of the problems that people have to deal with. (pollute)
3. Traditional celebrations are a good source of fun and entertainment. (celebrate)
4. You should buy this book. It’s very informative. (inform)
5. In traditional settings, people eat sticky rice cakes at Tet.
C: READING. ( 2.0 p)
I. Read the text. Then choose the right sentence A, B, C or D.(1.0p)
1. C. A month
2. B. The writer and his friend.
3. D. It was nice.
4. A. By car
5. B. At 12 o'clock
II. Read the passage and answer the following questions. (1.0p)
1. He was born in Scotland.
2. No, he worked in an office for five years.
3. He studied medicine at university.
4. He won the Nobel Prize in medicine in 1945.
D: WRITING (2.0p)
I. Complete the second sentences without changing the meaning of the first sentences. (1.0p)
1. Never has he been late for work.
2. The man who is talking to the lady over there is my new boss.
3. The postman asked the boy if Mr. Pike lived there.
4. A new school will be built next month.
5. It is not easy to find an apartment in a big city.
II. Write complete sentences. (1.0p)
1. We have not seen each other for 5 years.
2. Mr. Bill used to go swimming when he was young.
3. She is the best student in the class.
4. How long does it take you to go to school every day?
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→
-
∞
1
x
k...
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Với k là số nguyên dương bất kỳ, xét các mệnh đề sau:
1. lim x → + ∞ 1 x k = + ∞
2 . lim x → - ∞ 1 x k = 0 3 . lim x → + ∞ x k = + ∞ 4 . lim x → - ∞ x k = + ∞ n ế u k c h ẵ n 5 . lim x → - ∞ x k = 0 n ế u k l ẻ
Số mệnh đề đúng là:
A.2
B.3
C.4
D.5
cho hình vẽ hãy cho biết đề bài
Cho hình bên trái, hãy vẽ hình đối xứng
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4.1 Hỗn số 
được viết dưới dạng phân số là:
Hỗn số là một phân số có giá trị lớn hơn 1. Phân số được viết dưới dạng
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4,1=\(4\frac{1}{10}\)=\(\frac{41}{10}\)
Câu hoi của bạn ko rỏ nên mình làm ra như vậy
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Viết các số đo sau dưới dạng số thập phân có đơn vị là đề xi mét 72780cm3 ... dm3 3m3 25dm3 ... dm340,1527m3 ...dm3 12m3 68cm3 ...dm314, 03 cm3 ... dm3 10.0899m3 ...dm3
help
Cho các số a; b; c thỏa mãn a + b + c ≠ 0 và
Khi đó giá trị của biểu thức: là: M ...........
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help
Cho các số a; b; c thỏa mãn a + b + c ≠ 0 và 
Khi đó giá trị của biểu thức: 
là: M = ...........
Ta có: \(\frac{a+b}{c}=\frac{b+c}{a}=\frac{c+a}{b}=\frac{2a+2b+2c}{a+b+c}=2\)
\(\Rightarrow\) a + b = 2c; b + c = 2a; c + a = 2b
\(\Rightarrow\) M = \(\left(1+\frac{a}{b}\right)\left(1+\frac{b}{c}\right)\left(1+\frac{c}{a}\right)\)
= \(\left(\frac{a+b}{b}\right)\left(\frac{b+c}{c}\right)\left(\frac{a+c}{a}\right)\)
= \(\frac{2c}{b}\times\frac{2a}{c}\times\frac{2b}{a}\)
= 8
Vậy: M = 8.
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Chọn một trong hai đề bài số 02 và 03 trong bài viết số 1 trang 42 (sách Ngữ văn 9 tập 1) lập dàn ý và viết thành bài văn hoàn chỉnh (thuyết minh có sử dụng yếu tố nghệ thuật).
đề 2: cây ở quê em
Đề3: Một loài động vật hay vật nuôi ở quê em
Chọn một trong hai đề bài số 02 và 03 trong bài viết số 1 trang 42 (sách Ngữ văn 9 tập 1) lập dàn ý và viết thành bài văn hoàn chỉnh (thuyết minh có sử dụng yếu tố nghệ thuật).
Em tham khảo ở đây nhé:
Viết bài Tập làm văn số 1 Lớp 9: Đề 1 → Đề 4 (114 mẫu)
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28 tháng 2 2022 lúc 8:30
Phonetics :>
A. saved
B. helped
C. looked
D. reduced
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