Bài 2. Hãy tìm số mol nguyên tử hoặc số mol phân tử của những lượng chất sau:

- 24.10²³ phân tử H₂O                          - 1,44.10²³ phân tử CO₂

- 1,2.10²³ nguyên tử Fe                        - 0,66.10²³ nguyên tử C

Bài 1. Cho biết số nguyên tử hoặc phân tử có trong những lượng chất sau:

- 0,1 mol nguyên tử H;                          - 0,15 mol phân tử CO₂

- 10 mol phân tử H₂O                           - 0,01 mol phân tử H₂

Bài 2. Hãy tìm số mol nguyên tử hoặc số mol phân tử của những lượng chất sau:

- 24.10²³ phân tử H₂O                          - 1,44.10²³ phân tử CO₂

- 1,2.10²³ nguyên tử Fe                        - 0,66.10²³ nguyên tử C

Chỉ ra và nêu tác dụng của một biện pháp tu từ trong 2 câu ca dao sau :                                     Nước non lận đận một mình                                                                         Thân cò lên gác xuống ghềnh bấy nay .

Cho 2 câu ca dao sau                                                                                                               "Ai làm cho bể kia đầy                                                                                    Cho ao kia cạn, cho gầy cò con" .                                                                   Tìm 1 đại từ trong câu ca dao và cho biết đại từ đó thuộc loại đại từ nào.

Bài 1. Tính phân tử khối của các hợp chất sau:

H₃PO₄ , Na₂CO₃ , SO₃ , NaOH, Al₂(SO₄)₃

Mark letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to the original sentence in each of the following questions.(Chọn câu tương đương nghĩa với câu đã cho)

Question 31. It’s a good idea to eat a lot of fruits and vegetables everyday.

A. We should eat a lot of fruits and vegetables everyday.

B. We could eat a lot of fruits and vegetables everyday.

C. We must eat a lot of fruits and vegetables everyday.

D. We can eat a lot of fruits and vegetables everyday.

Question 32. She studied very hard. She passed all the exams.

A. She studied very hard, but she passed all the exams.

B. She studied very hard, or she passed all the exams.

C. She studied very hard, so she passed all the exams.

D. She studied very hard because she passed all the exams.

Question 33. His interest is playing sports and making DIY.

A. He is tired of playing sports and making DIY.

B. He is bored with playing sports and making DIY.

C. He is addicted to playing sports and making DIY.

D. He is interested in playing sports and making DIY.

Question 34. He ate a lot of junk food. He puts on weight.

A. He ate a lot of junk food, or he puts on weight.                                      

B. He ate a lot of junk food, but he puts on weight. 

C. He ate a lot of junk food because he puts on weight.      

D. He ate a lot of junk food, so he puts on weight.  

Question 35. I am excited about doing volunteer jobs. I want to be an activist.

A. I love volunteering, so I want to be an activist.                                        

B. I detest volunteering, so I want to be an activist.

C. I fancy volunteering, or I will be an activist.                                              

D. I dislike volunteering, and I want to be an activist.

Question 36. The last time she volunteered was 2 years ago.

A. She hasn’t volunteered for 2 years.

B. She has volunteered for 2 years.

C. This is the first time she volunteered.

D. She is not interested in volunteering.

Question 37. You should not eat too close to your bedtime, or you will get fat.

A. You should avoid eating before bedtime.

B. You had better eat before bedtime.

C. You are encouraged to eat before bedtime.

D. You should eat before bedtime.

Question 38. I don’t want to be tired tomorrow. I should go to bed early.

A. I don’t want to be tired tomorrow, or I should go to bed early.

B. I don’t want to be tired tomorrow, so I should go to bed early.

C. I don’t want to be tired tomorrow because I should go to bed early.

D. don’t want to be tired tomorrow, but I should go to bed early.

Question 39. famous / reading / I / people / about / like / books.

A. I like reading about people famous books.

B. I like reading books about famous people.

C. I like reading books about people famous.

D. I like reading about people books famous.

Question 40. day / James / homework / every / his / does.

A. James does every day his homework.                    B. James every day does his homework.

C. James does his homework every day.                     D. James does every his day homework.

Mark the letter A, B, C or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges.(Tìm lời đáp thích hợp)

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.(Chọn đáp án đúng)

            After school, Kien usually goes swimming. He goes to the swimming pool five times a week. His swimming pool is very good. The pool is 25 metres long and has six lanes. More than a thousand children have swimming lessons there every month. His swimming instructor is experienced and friendly, but she is also strict.

            Lessons last 45 minutes, but he usually trains for an hour and a half. During the lesson, he swims about two kilometers. His favourite swimming styles are crawl an backstroke.

            He practices a lot to improve his swimming skills. He wants to achieve good results. Last month, he participated in a swimming competition. Ten swimmers from three schools took part in the competition. He won first prize.

            Swimming is his favourite sport. Swimming is interesting and pleasant, and it helps him to keep fit.

Question 24. How often does Kien go swimming?

A. once a week                                    B. twice a week

C. 5 times a week                                D. the whole week

Question 25. In paragraph 2, the word “instructor” is closest in meaning to______

A. friend                      B. volunteer                 C. teacher                    D. player 

Question 26. In paragraph 4, the word “it” refers to_______

A. swimming               B. competition             C. swimmer                 D. result

Question 27. What is NOT mentioned as an adjective to describe swimming?

A. unhealthy               B. healthy               C. healthy                  D. pleasant

Question 28. Which sentence is NOT TRUE?

A. Kien’s mentor is experienced and easy- going.                           

B. Kien practices a lot to improve his swimming skills.

C. There are more than one thousand contestants in a swimming competition.                  

D. Kien used to take part in a swimming competition.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.(Chọn đáp án đúng hoàn thành đoạn văn)

            We need calories or energy to do the things every day. For example, when we walk to school or (19) ………………..a bike to school we spend a certain amount of calories and even when we sleep, we also use them. But how many calories should we have a day to stay in shape? It’s (20)………… for us to calculate. If people want to keep (21) …………….., they should remember that everyone should have between 1600 and 2500 calories a day.

            We get calories from the food we eat. If we get too many food and don’t take part in  any activities, we can get (22)………… quickly. So besides studying, we should do some (23)………….., play sports or do the housework, such as cleaning the floor, cooking etc.

 Question 19. A. go           B. ride                 C. have                  D. play

 Question 20. A. healthy       B. easy             C. difficult                D. unhealthy

 Question 21. A. fit           B. fat              C. unhealthy.               D. good

 Question 22. A. thin           B. sunburnt              C. fat                       D. sick

 Question 23. A. exercise      B. homework       C. volunteer              D. makeup

Mark the letter A, B, C or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.(Tìm từ trái nghĩa với từ gạch chân)

Question 15. Many people in this city are putting on weight.

A. gaining weight        B. losing weight         C. Keeping fit            D. Tidying up

Question 16. It is unusual for people to make architectural models.

A. creative               B. unique                  C. normal                     D. available

Question 17. You can help young children by teaching them how  to do homework before school.

A. helping                   B. cleaning             C. donating                D. tutoring

Question 18. To help the elderly with transportation, we could take them across the streets.

A. young                B. old                    C. disabled                     D. homeless