Sườn đồi có thể coi là mặt phẳng nghiêng góc α = 60* so với mặt phẳng ngang. Lấy g = 10 m/s2 . Từ điểm O trên đỉnh đồi người ta ném một vật nặng với tốc độ ban đầu 10 m/s theo phương ngang, nó rơi tại điểm A trên sườn đồi. Giá trị OA bằng                A. 13,3 m B. 16,7 m C. 50,7 m D. 69,3 m

Từ độ cao h = 20m, một vật được ném ngang với vận tốc ban đầu v O = 5m/s. Chọn hệ trục toạ độ Oxy như hình vẽ.

a. Hai chuyển động thành phần của vật theo phương Ox&Oy là loại chuyển động gì? Viết phương trình những chuyển động đó.

b. Viết phương trình quỹ đạo của vật.

c. Tính vận tốc của vật khi vật rơi được 1,5s

d. Sau bao lâu thì vật chạm đất? Tính vận tốc của vật lúc chạm đất?

Choose the best answer

1. - Mrs Brown: "Make yourself at home".  -Liz and Peter: "________"

      A. Not at all. Don't mention it.                         B. That's very kind. Thank you.

      C. Thanks! Same to you.                                  D. Yes, Can I help you?

2. –Tom: “Thank you for your help!”        -Mary: “_________”.

      A. With all my heart      B. It’s my pleasure       C. Never         D. No, thanks

3. Linda: “What a lovely house you have!”   Janet: “_________”.

      A. No problem                              B. Thank you. Hope you will drop in

      C. Of course not. It’s not costly                        D. I think so

4. -“Is Jane an acupuncturist?”       _ “ ________”.

      A. I think not            B. I think it        C. I think so           D. I don’t think that

5. –“It’s going to rain!”                _ “________”.

      A. I don’t hope so         B. I hope not       C. I don’t hope       D. I hope not so

6. “________?”  – “He’s tall and thin with blue eyes.”

      A. How is John doing                                      B. What does John like  

      C. What does John look like                             D. Who does John look like

7. “I’m taking my driving test tomorrow.”  –“________.”

      A. Good chance            B. Good time         C. Good day           D. Good luck

8. “Would you mind lending me your bike?”  –“________.”

      A. Yes, here it is           B. Not at all                 C. Yes, let’s            D. Great

9. “What shall we do this evening?” –“________.”

      A. Let’s go out for dinner                               B. Oh, that’s good

      C. No problem                                                D. I went out for dinner

10. - David: “Merry Christmas!”         - Jason: “__________”

       A. You are the same!                                      B. Same for you! 

      C. The same to you!                                       D. Happy Christmas with you!

11. – “Hello, My name’s John.” – “_________ to meet you.”

      A. Please                     B. Pleased          C. I’m very well         D. Thank you

12.  A: “How’s life?”   –B: “_________.”

      A. Sure                                                          B. Not too bad, but very busy

      C. Very well, thank you                                   D. Pleased to meet you

13.  A: “Thank you for the lovely present.” – B: “_________”.

      A. Go ahead      B. Not at all        C. Come on       D. I’m pleased you like it

14. _”What can I do for you?”   _ ”__________”.

      A. No’ I can’t     B. Thanks, I’ll do it   C. Yes, do it please   D. Thank you. I’m just looking

15. - “Congratulations! You did great.”    –“ _________”

      A. That’s okay.             B. It’s my pleasure.      C. You’re welcome.                           D. It’s nice of you to say so.

16. - A: “Do you fancy a coffee?”   - B: “_________”

      A. Oh, dear.  B. Everything is OK.     C. Oh, yes. I’d love one                                                         D. How do you do?

17. - “_________ a happy marriage should be based on love.”  – “I definitely agree!”  

      A. I really know            B. As I see it                C. Personally, I think D. Do you think

18.- A: “ Bye”  - B: “_________”.

      A. Thank you      B. Meet you again        C. See you later  D. See you lately

19. - Anna: “You really have a beautiful dress, Barbara.” - Barbara: “Thank you, Anna. __________.”

      A. This is your pity       B. That’s a nice compliment 

  C. No, thanks.                       D. Yes, it was terrible

20. Linda:  “Excuse me! Where ‘s the post office?”   - Maria:  “_________”.

      A. Don’t worry    B. I’m afraid not       C. Yes, I think so     D. It’s over there

Rewrite sentences without changing their meanings

1. This is the 1^st time he has gone abroad.

→He has ……………………………………………………………………………

2. The last time she went out with him was two years ago.

→ She hasn’t …………………………………………………………………………………………

3. It’s 10 years since we last met each other.

→We last …..……………………………………………………………………………………

4. You must finish all your homework before going to bed.

→ All your homework …………………………………………………………………………………………

5. We can use a 3-D printer to produce solid objects similar to the original ones.

→ A 3-D printer …………………………………………………………..………………………………

6. He finished his test, then he left the examination room.

→After he …………………………………………………………………………………………

7. I’ve lost my headphones.

→ Someone ……………………………………………………………….……….…………………

8. It’s a long time since the invention of the computer.

→ The computer ……………………….…………………………………………………………………

9. I saw him close the door and drive the car away.

→He was ………………………………………………………………………………………………………………………………………………

10. It’s necessary for our government to revolutionize education.

→Education …………………………………………………………………………………………

11. People think that Maradona is the best football player in the 20^th century.

→ It is ………………….………………………………………………………………………

→ Maradona is …………………….……………………………………………………………………

12. He told me that his football team had played well last season.

→ I……………………………..………………………………………………………

→His football team………………………….………………………

13. Anna usually feeds the cats before she goes to school.

→The cats …………………………………………………………………………………………………………………………………..…………

14. My nephew keeps interrupting me. 

→My nephew is ……………………………………………………………………………………

15. People started using vaccination a long time ago to prevent diseases.

→Vaccination ………………………………………………….………………………………………