A piece of wood is to be sawed into 6 smaller similar pieces.if a cut eliminates 2% of wood as sawdust , what is volume of a small piece related to the volume of the original piece?
A piece of wood is to be sawed into 6 smaller similar pieces.if a cut eliminates 2% of wood as sawdust , what is volume of a small piece related to the volume of the original piece?
1. The dictionary is 200,000 dong.
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2. I made it from a piece of wood.
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3. She bought it at the shop over there.
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4. No, I wasn’t. (I was tired after the trip.)
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5. It took her three hours to finish the composition.
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6. I need a phone card to phone my parents.
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7. It’s about 1,500 km from Hue to Ho Chi Minh City.
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8. The bank is opposite the restaurant.
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9. The dress looked very nice.
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10. I saw her last night.
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11. Her neighbor gave her a nice dress.
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12. They returned to America two weeks ago.
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13. Mrs. Robinson bought a poster.
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14. My father was in Ha Noi last month.
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15. He traveled to Nha Trang by coach.
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16. She went to the doctor because she was sick.
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17. Nam left home at 7 o'clock yesterday.
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18. He taught English in the high school.
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19. The homework was very difficult yesterday.
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20. She often does the housework after doing exercises.
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21. They are planting some roses in the garden.
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22. Liz will send these letters to her friends.
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23. My favorite subject is Math.
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24. Yes, we do. (We have magazines and newspapers)
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25. I often listen to music in my free time.
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26. Yes, he is. (He is good at drawing)
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27. She learns about computers in computer science class.
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28. My mother is cooking in the kitchen at the moment.
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29. Lan likes playing table tennis.
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30. I go to the movies twice a week.
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31. They go to the beach on the summer holidays.
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32. They stay in a hotel.
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Exercise 2: Write questions for the underlined words.
33.- He met Linda for coffee.
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34.- I was born in 1964.
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35.- My cousin started sailing six months ago.
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36.- I went to the cinema with my cousins.
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37.- I stayed in New Zealand for six months.
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38.- She called the firemen because her cat stuck in a tree.
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39.- I bought two kilos of oranges.
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40.- John wrote about his grandparents.
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41.- I watched a very good film on TV last night.
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42.- She made some coffee for her mother.
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43.- Susan gave the money to her brother.
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44.- We went to school by bus.
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45.- I was tired yesterday evening because I worked very hard.
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46.- Mary invited a lot of people to the party.
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47.- No, we didn’t go to the cinema last night.
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48.- Shakira grew up in Colombia.
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49.- He went on holiday with his friends.
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50.- Shakespeare died in 1616.
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Bạn đăng từng bài ra được khum ạ, như vầy thì dài quá :>
ui dài qué à
1. The dictionary is 200.000dong
=> How much is this dictionary ?
2. I made it from a piece of wood
=. What did it make from ?
3. She bought it at the shop over there
=. Where did she buy it ?
4. No, I wasn't. ( I was tired after the trip )
=> Was you tired after the trip ?
5. It took her three hours to finish the composition.
=> How long did it take her to finish the composition ?
6. I need a phone card to phone my parents
=> Why do you need a phone card ?
7. It's about 1.500km from Hue to Ho Chi Minh city
=> How far is it from Hue to HCM city ?
8. The bank is oppiste the restaurant
=> Where is the bank ?
9. The dress looked very nice
=> What did the dress look ?
10. I saw her last night.
=> Who did you saw last night ?
=> When did you saw her ?
11. Her neighbor gave her a nice dress.
=> What did her neighbor give her ?
12. They ( Ko hiur >
13. Mrs.Robinson bought a poster
=. What did Mrs. Robinson buy ?
14. My father was in Ha Noi last month
=> Where was your father last month ?
15. He traveled to Nha Trang by coach
=> How did she travel to Nha Trang ?
16. She went to the doctor because she was sick
=> Why did she went to the doctor ?
17. Nam left home at 7 o'clock yesterday
=> When did Nam left home yesterday ?
18. He taught English in the high school.
=> What did he do in the high school ?
1. How much is the dictionary?
2. What did you make it from?
3. Where did she buy it?
4. Were you tired after the trip?
5. How long did it take her to finish the composition?
6. What do you need to phone your parents?
7. How far is it from Hue to Ho Chi Minh City?
8. Where is the bank located?
9. How did the dress look?
10. When did you see her?
11. Who gave her a nice dress?
12. When did they return to America?
13. What did Mrs. Robinson buy?
14. Where was your father last month?
15. How did he travel to Nha Trang?
16. Why did she go to the doctor?
17. When did Nam leave home yesterday?
18. What did he teach in the high school?
19. How difficult was the homework yesterday?
20. What does she often do after doing exercises?
21. What are they planting in the garden?
22. Who will Liz send these letters to?
23. What is your favorite subject?
24. What do you have? (Magazines and newspapers)
25. What do you often do in your free time?
26. Is he good at drawing?
27. What does she learn about in computer science class?
28. What is your mother doing in the kitchen at the moment?
29. What does Lan like playing?
30. How often do you go to the movies?
31. When do they go to the beach?
32. Where do they stay?
Exercise 2: Write questions for the underlined words.
33. Who did he meet for coffee?
34. When were you born?
35. When did your cousin start sailing?
36. Who did you go to the cinema with?
37. How long did you stay in New Zealand?
38. Why did she call the firemen?
39. How much oranges did you buy?
40. What did John write about?
41. What did you watch on TV last night?
42. Who did she make some coffee for?
43. Who did Susan give the money to?
44. How did you go to school?
45. Why were you tired yesterday evening?
46. Who did Mary invite to the party?
47. Did you go to the cinema last night?
48. Where did Shakira grow up?
49. Who did he go on holiday with?
50. When did Shakespeare die?
He is carving this flower out of the piece of wood. (carved)
Get a piece of paper cut into 4 pieces. Get a piece that you have just cut cut into 4 pieces. So on many times.
a) When to stop cutting follow the rule above, can we be obtained 2012 pieces of it?
b) How many times do we cut to obtain 52 pieces of paper?
sorry mk ko thành thạo tiếng anh cho lắm nên mk ko giải đc bạn giỏi tiếng anh như vậy thì dịch thành tiếng việt đi có thể mk sẽ làm đc
dịch nè bn nào giỏi toán thì trả lời nha mình chỉ bít tiếng Anh thôi ko giỏi toán:
Lấy 1 tờ giấy(mảnh giấy) cắt thành 4 mảnh. Lấy 1 mảnh mà bạn vừa cắt cắt ra 4 mảnh . Lặp lại nhiều lần.
a) Khi ngưng cắt theo quy trình trên, chúng ta có thể có 2012 mảnh từ nó ko?
b)Chúng ta cắt bao nhiu lần thì được 52 mảnh giấy?
Choose the best option A, B, C or D to complete each of the following sentences.
Question 8. The flower was _____________ out of a single piece of valuable wood.
A. carved B. moulded C. cast D. given
Question 9. In this town, they _____________ all the frames in steel.
A. make B. have C. mould D. cast
Question 10. She is skilled at _____________ cloth.
A. giving B. weaving C. doing D. carving
Question 11. If you like, I can _____________ flowers on the cushion covers for you.
A. grow B. make C. embroider D. knit
Question 12. Is it true that you _____________ this woolen hat yourself?
A. knitted B. wove C. did D. carved
Question 13. The doll has been _____________ out of clay.
A. embroidered B. cast C. woven D. moulded
Question 14. I love going to this place _____________ it’s the quietest place in the city.
A. so B. though C. so that D. as
Question 15. They keep changing the decoration of the shop _____________ they can attract more young people.
A. so that B. because C. although D. when
Question 16. This city has one of the most ___________ underground rail networks in the world.
A. efficient B. fashionable C. cosmopolitan D. fascinated
Question 8. The flower was _____________ out of a single piece of valuable wood.
A. carved B. moulded C. cast D. given
Question 9. In this town, they _____________ all the frames in steel.
A. make B. have C. mould D. cast
Question 10. She is skilled at _____________ cloth.
A. giving B. weaving C. doing D. carving
Question 11. If you like, I can _____________ flowers on the cushion covers for you.
A. grow B. make C. embroider D. knit
Question 12. Is it true that you _____________ this woolen hat yourself?
A. knitted B. wove C. did D. carved
Question 13. The doll has been _____________ out of clay.
A. embroidered B. cast C. woven D. moulded
Question 14. I love going to this place _____________ it’s the quietest place in the city.
A. so B. though C. so that D. as
Question 15. They keep changing the decoration of the shop _____________ they can attract more young people.
A. so that B. because C. although D. when
Question 16. This city has one of the most ___________ underground rail networks in the world.
A. efficient B. fashionable C. cosmopolitan D. fascinated
II. PRONUNCATION, VOCABULARY, GRAMMAR
1. Choose the most suitable word or word phrase by circing A, B, C, or D
1 The flower was (carved/cast/moulded/given) out of a single piece of valuable wood
2 This sport centre is so small that it can not (keep up with/face up to/deal about/set up) the demands of the local residents
3 She's the most famous artisan in the village (when/although/because/in order that) she's young
4 My father didn't allow me to go out, so I had to (close down/turn down/turn up/come back) Lan's invitation
5 Japan is the (most second/second in most/second most/two most) developed country in the Wold
6 This city has one of the most (fashionable/cosmopolitan/fascinated/effident) underground rail networks in the world
2. Use the correct form of the words given in brackets
1 What's the (small)___country in the world? - I think it's Monaco
2 Many people move to the city because they enjoy the pleasant and (convenience)____life there
3 I was (disappointment)___as the film was less entertaining than I had expected
4 He drove (careful)___ last week, so he had an accident
1. Choose the most suitable word or word phrase by circing A, B, C, or D
1 The flower was (carved/cast/moulded/given) out of a single piece of valuable wood
2 This sport centre is so small that it can not (keep up with/face up to/deal about/set up) the demands of the local residents
3 She's the most famous artisan in the village (when/although/because/in order that) she's young
4 My father didn't allow me to go out, so I had to (close down/turn down/turn up/come back) Lan's invitation
5 Japan is the (most second/second in most/second most/two most) developed country in the Wold
6 This city has one of the most (fashionable/cosmopolitan/fascinated/effident) underground rail networks in the world
2. Use the correct form of the words given in brackets
1 What's the (small)_smallest__country in the world? - I think it's Monaco
2 Many people move to the city because they enjoy the pleasant and (convenience)___convenient_life there
3 I was (disappointment)__disappointed_as the film was less entertaining than I had expected
4 He drove (careful)__carelessly_ last week, so he had an accident
SECTION III: READING (5.0 points)
Part 1: Read the following passage and choose the correct answer to each of the following
questions. Write your answer (A, B, C, or D) in the numbered boxes.
Since ancient times, one of the most common materials people have utilized to make things
with is wood. Wood is used to make houses, buildings, and other structures. People also
make a large number of smaller objects with it.
The desire to make finished products more beautiful appears to be ingrained in huma n
nature. On account of this fact, for thousands of years, people have carved and shaped
wooden objects to make them more appealing to the eye. Humans have additionally tended
to create both religious and ceremonial objects from wood. In fact, all around the world,
countless cultures have made use of ceremonial wood carvings. These objects often reflect
the spirit of the people who made them, and each of them tends to hold a special
significance as well.
One of the most common types of wood carvings is the mask. People in many cultures in
Asia, Africa, and North America have made ceremonial wooden masks. In Africa, for
instance, large numbers of tribes use wooden masks for vari ous spiritual rituals. These
masks are often in the form of animals that are sacred to the tribes. In other cases, the masks
have human forms. The faces, however, may not be exactly humanlike. For instance, the
faces can be distorted, having wider, longer, smaller, or larger features than normal. The
masks may be carved to give them ugly or frightening appearances as well. And, on other
occasions, the masks are made to look as beautiful as possible.
While masks tend to be fairly small, other wood carvings can be enormous. Among the
largest of all ceremonial wood carvings is the totem p ole. Totem poles have been built by
several Native American tribes that reside in the northwestern part of North America. They
are normally made to represent families, or they may honor significant historical events.
Some even tell stories. A typical totem pole has several individual carvings on it. Each
carving represents a different part of the family history, event, or story. Most totem poles
have human or animal faces, as well as other figures, carved in them. They are so large that
they are made from e ntire trees. Once the trees are cut down, master craftsmen work on
them. When completed, they may or may not be painted. Then, the totem poles are
positioned in places of honor and placed upright.
1. What is this passage mainly about?
A. The ways wood can be used to make buildings B. The purposes of masks in some cultures
C. The types of wood carvings some people make D. Totem poles and their significance
2. In line 4, the word ingrained is closest in meaning to _________.
A. embedded B. disturbed C. initiated D. consistent
3. Why have some people carved wooden objects?
A. To give them to others as gifts B. To worship them as idols
C. To employ them as weapons D. To utilize them in ceremonies
4. In line 14, the phrase sacred to is closest in meaning to _________.
A. important to B. hunted by C. revered by D. necessary for
5. What does the author say about masks?
A. They always resemble human faces. B. It takes a great deal of effort to make them.
C. People make them on several continents. D. Animal masks are more popular than human ones.
6. The author uses totem poles as an example of _________.
A. wood carvings that are large in size B. a type of wood carving older than masks
C. the most impressive of all wood carvings D. the wood carvings favored by all Native Americans
7. In line 22, the word they refers to _________.
A. several Native American tribes B. totem poles C. families D. significant historical events
8. What does the author imply about wood carvings?
A. They take years to learn how to make. B. They are expensive to buy.
C. They need special types of wood. D. They may vary in size.
9. The author mentions all of the following about totem poles EXCEPT _________.
A. what they look like B. what they represent
C. which trees are used to make them D. who usually carves them
A rectangular paper is 5/4m long and 1/2m wide. Peter cuts it into many pieces. Each piece is a square with the side of 1/4. How many piece does he cut?
chu hình chữ nhật là:5/4*1/2=5/8
chu vi hình vuông là1/4*1/4=1/16
anh ấy cắt đc số mảnh là:5/8:1/16=80/8=10
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions
Archimedes’s Principle is a law of physics that states that when an object is totally or partially immersed in a fluid, it experiences an upthrust equal to the weight of the fluid displaced. The principle is most frequently applied to the behaviour of objects in water, and helps to explain floating and sinking, and why objects seem lighter in water. It also applies to balloons.
The key word in the principle is “upthrust”, which refers to the force acting upward to reduce the apparent weight of the object when it is under water. If, for example, a metal block with a volume of 100 cm3 is dipped in water, it displaces an equal volume of water, which has a weight of approximately 1 N (3.5 oz). The block therefore seems to weigh about 1 N less.
An object will float if its average density is less than that of water. If it is totally submerged, the weight of the water it displaces (and hence the upthrust on it) is greater than its own weight, and it is forced upward and out of water, until the weight if water displaced by submerged part is exactly equal to the weight of the floating object. Thus a block of wood with a density six tenths that of water will float with six tenths of its volume under water, since at that point the weight of fluid displaced is the same as the blocks’s own weight. If a dense material is made into a suitable shape, it will float because of Archimedes’s principle. A ship floats, whereas a block of iron of the same mass sinks.
It is also because of Archimedes’s principle that ships float lower in the water when they are heavily loaded (more water must be displaced to give the necessary upthrust). In addition, they cannot be so heavily loaded if they are to sail in fresh water as they can if they are to sail in the sea, since fresh water is less dense than sea water, and so more water must be displaced to give the necessary upthrust. This means the ship is lower in the water, which can be dangerous in rough weather.
From “Archimedes’s Principle”, MicrosoftÒ Student 2008[DVD]. Microsoft Corporation, 2007.
A block of wood with a density seven tenths that of water will ____
A. go up and down the sink
B. float with a half of its volume under water
C. float with an equal volume of its volume under water
D. sink immediately when submerged
Đáp án C
C. float with an equal volume of its volume under water
Ý nghĩa của cả câu: “Một khối gỗ có tỉ trọng bảy phần mười tỉ trọng của nước sẽ nổi lên với một thể tích tương đương với thể tích chìm của nước”.
Chúng ta có thể tìm thấy ý này trong câu ba của đoạn 3: “Thus a block of wood with a density six tenths that of water will float with six tenths of its volume under water, since at that point the weight of fluid displaces is the same as the block’s own weight”.