Bài 3. (3 điểm) Một vật khối lượng 0,5 kg được ném thẳng đứng lên cao với vận tốc đầu 10 m/s. Lấy 10 𝑚/𝑠2 a) Tính độ cao cực đại mà vật đạt được. b) Tính cơ năng của vật khi bắt đầu ném.

Bài 2. (2 điểm) Một máy bơm nước có công suất 1500 W, dùng để bơm nước từ một bể ngầm lên cao 6 m. Biết trong 5 phút máy bơm được 1350 kg nước. a) Tính công có ích của máy. b) Tính hiệu suất của máy bơm.

Một người kéo một hòm gỗ bằng lực 100 N theo phương song song với mặt đất. Hòm dịch chuyển được 20 m. Tính công mà người đó thực hiện trong trường hợp: a) Lực kéo song song với mặt đất. b) Lực kéo hợp với phương ngang góc 30∘

cần gấp vào tối nay ><

hãy cho một ví dụ về một văn bản và cho biết văn bản đó có bố cục ,kết cấu , ngôn ngữ, biện pháp tu từ,vần,nhịp,........... ra sao

④ cho đoạn mạch có R1 nối tiếp(R2//R3) Biết đoạn mạch có điện trở 30Ω.R1=10Ω., R3 = 60Ω. Tìm R2

③ cho đoạn mạch gồm R1//R2//P 3 . Trong đó điện trở đoạn mạch là 10Ω, R1=40Ω, R2 = 60Ω Tìm R3

2/ cho đoạn mạch gồm R1 nối tiếp R2. Bt điện trở đoạn mạch 30Ω, R2=10Ω.,Tim R1.

XIII. Rewrite the following sentences without changing the meaning of the root ones
1. They won't go on holiday if they don't have time.
Unless...
2. He won't take a taxi if it doesn't rain.
Unless......
3. You can't have a good health unless you exercise more
If..........
4. Unless we take action immediately, the air will become completely polluted
If we....................
5. The environment is now in danger because many people do not respect it.
If many people..........
6. Unless people stop throwing rubbish in street, the street won't look attractive
The street won't look..........
7. The receptionist gave me was very useful information
The information...........
8. She teaches English at our school.
She is..........
9. Don't go out in the rain because you will get wet.
If you..........

II. Complete the following sentences with correct form of the words in the brackets
1.Don't throw away .......bottles, paper, and glass. Take them to recycling center (USE)
2. Without............., some people wouldn't catch fish (ELECTRIC)
3. The local resident promise to keep the environment.....(CLEANNESS)
4. They live a............ life by having a balanced diet every day (HEALTH)
5. Parents always want their children to study.....to get good results (HARD)
6. My brother has a big....of foreign coins (COLLECT)
7. This bag is made of............materials (NATURE)
8. If we use ....... bag, we will help protect the environment (USE)
9. Air......can cause breathing problems (POLLUTE)
10. There will be less air............if more people cycle(POLLUTE)
11 . If people pollute the air, we have..........problem (BREATHE)
12. You shouldn't swim in this river. It is..........(POLLUTE)
13. I like living in the countryside because it is..........(POLLUTE)
14.You should use...pens and pencils to help the environment (REFILL)
15. You should do something about the........pollution (ENVIRONMENT)
16. He is one of the most famous............in the world (ENVIRONMENT)
17. If we go on lettering, the environment will become..polluted (SERIOUS)

Part 1. Indicate the part that needs correction by circling A, B, C or D. (0,5m)
 31. He tried really hard, so he failed to achieve. 
32. The colour orange shines brighter in the sun than the colour blue
Part 2. Finish each of the following sentences in such a way that it means exactly the same as the one
printed before it. (1,0 m)
33. Lan's parents loved shopping in their free time. (KEEN)
→............................................................shopping in their free time
34. We answered all the questions.. ...................(good) than the other students.
→Other students answered questions..................................
35. She was a slow swimmer (SWAM)
→She...................................................
36. He lost his purse, so he was sad. (FOR)
→He was sad........................................

VII. Complete the following sentences with the correct form of the verbs in the brackets
1. They (watch)...............TV late at night yesterday.
2. Your friend (be)..............at your house last weekend?
3. They (not be)..............excited about the film last night.
4. Yesterday, I (go) ................to the restaurant with a client.
5. Last week, we (drive)..............around the parking lot for 20 mins to find a parking space.
6. When we (arrive).............. at the restaurant, the place (be)......... full.
7. My client and I slowly (walk)..............back to the car 3 week ago
8. linh (do)..............her maths homework yesterday.
9. My mother..............(buy) some food at the grocery store at the moment. 
10. Luke..............(not study) Japanese in the library. He's at home with his friends now.
11. ......................................(she, run) down the street at present?
12. My cat.................(eat) now.
13. Who...(you, wait) for at the moment?
14. Her students..............(not/try) hard enough in the competition.
15. All of Andy's friends.............. (have) fun at the party right now.
16. My neighbours ......(travel) around Europe now.
17. The little girl..............(drink) milk.
18. Listen! Our teacher..............(speak).
19. My friend..............(live) in London.
20. They (not/study).............. English at the university.
21. We..............(play) football every weekend.
22. We..............(travel) to different countries every summer.
23. The company..............(develop) innovative products to stay ahead in the market.
24. He..............(work) tirelessly to achieve his goals.
25. I..............(not/work) as a Marketing editor in AHK company.
26. She usually.............. (go) to the gym after work.
27. The cat often (sleep).............. on the sofa.
28. He..............(not/like) to eat pizza.
29. They..............(travel) to different countries every year.
30. We..............(have) lunch at 12 o'clock.
31. She never...............(read) a book in the park?
32. He (work).............. as a teacher.
33. The train (arrive) ..............at 8 every morning.
34. I think he (not come).............. back his hometown.
35. I'm afraid I.. ..............(not/be) able to come tomorrow.
36. Because of the train strike, the meeting (not/ take) ..............place at 9 o'clock.
37. A: "Go and tidy your room."
B: "Okay. I..............(do) it now!"
38. We sometimes.(drink).............. coffee in the morning.
39. They (play) ..............the guitar very well.
40. She (not/teach) ..............English at the language center every weekend.
41. She often (study).............. hard so that she can get into a top university.
42. They (do) ...........it for you tomorrow.
43. Sarah(go)...........to the gym every day.
44. My father (call)........... you in 5 minutes.
45. We believe that she (recover)........... from her illness soon.
46. I promise I (return) ...........school on time.
47. If it rains, he (stay)...........at home.
48. My sister (get)...........married last month. 
49. Daisy (come) ...................to her grandparents' house 3 days ago
50. My computer (be)............................ . broken yesterday.
51. He (buy)...............me a big teddy bear on my birthday last week.
52. My friend (give)..............me a bar of chocolate when I (be).............at school yesterday.
53. My children (not do) ..............their homework last night.
54. You (live) .................here five years ago?
55. You (take) ..............me to the zoo this weekend?

VI. Fill in each blank with the suitable form of the word given. Then rewrite the sentences with the cues
1. He comes to class (EARLY)...than he used to.
-He used..............................
2. I run (FAST)..............................than my brother
-My brother...............................
3. He did the test (BAD)...............................than his sister.
His sister..........................................................
4. He speaks (SLOW).............................than he used to.
He used to................................
5. Life in the city is (MODERN).............................than life in the countryside
Life in the countryside..........................................................
6. Summer is (HOT).............................season of the year
No season.......................................................................................
7. Nowadays, women dress (TRADITION)  ...than they did in the past
In the past, women...........................................................
8. My teacher dresses (BEAUTIFUL)............................. than other teachers.
Other teachers dress..............................
9. After seeing the doctor, he eats (HEALTH)................................
Before........................................................
10. Sometimes poor people donate (GENEROUS)........than the rich
Sometimes the rich....................................
11. He is (POPULAR).......known as a very famous singer
12. He is (FAMOUS)..............................actor in Viet Nam
No actor in Viet Nam.................................................
13. In Viet Nam, children shouldn't eat before adults because it is (RESPECT)...........................
14. It rained (HEAVY).......................today than it did yesterday.
Yesterday, it..............................................
15.The(DIFFERENT)....between a custom and a tradition is not very 
clear.
16. What is the (SIMILAR).............. between a custom and a tradition?
17. He is (CARE)...than me. He often has accidents on the way to work.
I am..........................................
18. A racing driver drives (SKILL)........than a normal motorist
A normal motorist driver..........................................
19. My house is often (GOOD)........decorated at Tet than during the other days.
20. We live (HAPPY)......in the countryside than we do in the city.
In the city, we live..................

VIII. Write question for the underlined words
1. Lan likes playing table tennis.
2. I go to the movies twice a week.
3. They have gone to the beach on the summer holidays.
4. they have stayed in a hotel for two days
5. The children swam in the lake.
6. The glass fell of the table.
7. They saw lions and tigers at the zoo.
8. John will be studying maths at 7 tomorrow
9. He gave her a bunch of flowers for her birthday.
10. The company has sent the new worker to California.
11. My sister dreamt about the monster last night.
12. My grandmother heard a loud scream last night.
13. He fell because he slipped on a banana peel.
14. The teacher was angry because he didn't do his homework.
15. It takes us about half an hour to get to school.
16. I am tired because I has worked very hard.
17. I borrowed my teacher's dictionary.
18. They returned to America two weeks ago.

write questios for the underlined words 

3. He traveled to Nha Trang by coach.
4. I made it from a piece of wood.
5. She bought it at the shop over there.
6. It took her three hours to finish the composition.
7. I need a phone card to phone my parents.
8. It's about 1,500 km from Huc to Ho Chi Minh City.
9. Her neighbor gave her a nice dress.
10. The dictionary is 200,000 dong.
11. She went to the doctor because she was sick.
12. Nam left home at 7 o'clock yesterday.
13. He has taught English in the high school.
14. The homework was very difficult yesterday.
15. She often does the housework after doing exercises.
16. They are planting some roses in the garden.
17. I often listen to music in my free time.
18. She learns about computers in computer science class.
19. My mother is cooking in the kitchen at the moment.