Câu 17: Ngày nay, người ta đã sản xuất ra nhiều loại xe máy điện khác nhau để phục vụ đời sống đi lại của con người. a) Theo em, việc sửa chữa xe máy điện có phải là nghiên cứu khoa học tự nhiên không? b) Việc sản xuất xe máy điện là ứng dụng thuộc lĩnh vực nào của khoa học tự nhiên? c) Sử dụng xe máy điện có gây ô nhiễm môi trường không? Vì sao?

Các câu hỏi liên quan

mọi ng giúp mik mấy câu TN đc ko ak (Số 10 phần III A .said B .could reach C. in D.after nha mn ) II. Cirle the best opion among A, B, C or D 1. It’s raining. Let’s go ________________ in order not to get wet. A. Inside B. Outsides C. Insides D. outside 2. Don’t put the rice cooker there. Put it. ______________ A. Upstairs B. Here C. Near D. nearby 3. I’m ____________ to the movie next Saturday. A. Go B. Goes C. went D. going 4. Can you hurry up in the bathroom? I can’t hold__________ much longer. A. up B. in C. On D. To 5. Tom will come _________ to pick Nancy up. A. over B. In C. at D. to 6. Nga has to study English at school tomorrow. A. must B. Should C. can D. Ought to 7. Hello. I’m Peter. Can I speak ________ Ann please? A. about B. to C. with D. at 8. Many people don’t like to ___________ experiments on animal. A. arrange B. transmit C. conduct D. Assist III. Cirle the incorrect opion among A, B, C or D 9. Do you going to swim in the river tomorrow ? A B C D 10. Mr. Tan said he could reach you in 0753867123 after midday. A B C D______________________________________________________________ IV. Choose the best answers to these sentences by circling A, B, C or D 1. I am sure that they will tell us about ____________ A. myself B. themselves C. ourselves D. himself 2. He is ……. to have a lot of friends. A. enough lucky B.lucky enough C.too lucky D.so lucky 3. She has to ................the room. A. cleaning B.clean C cleaned D. cleans 4. A kitchen is a …….. place to play in A.suitable B.dangerous C. safety D.convernient 5.Alexander Graham Bell was born…….. March 3,1847. A. in B. at C.on D. during 6.He isn’t ..... and he isn’t upstairs . A.upstair B.upstairs C.downstair D.downstairs 7. Her parents still live there .......... her grandparents. A. for B. at C. with D. on 8. Lan is ............ than Hoa A. tallest B. tall C. taller D. more tall 9. What ................. your telephone number? A. is B. are C. does D. do 10. Which is the _________ expensive in the shop? A. more B. most C. the most D. 11. My mother takes care ............... sick children. A. about B. in C. at D. of 12. Are there .......... pens on the table? Yes, there are. A. any B. some C. much D. a 13. ........................ a beautiful day! A. It B. Which C. Where D. What 14. Minh ……………….television every night. A. watch B. watches C. watching D. to watch 15. She doesn’t have ……………….picture books. A. some B. many C. lot of D. much 16. What an _________ kitchen! A. amaze B. amazes C. amazing D. to amaze 17. Jane hasn't met her grandfather _______ three days. A. since B. for C. about 18. She used _______ to the zoo on Sundays when she was a child. A. going B. go C. to go 19. He wishes he _______ a collection of stamps. A. has B. have C. had 20. I _______ a lot of people few days ago . A. have met B. met C. meet 21. Lan usually _______ to Maryam every week. A. write B. writes C. wrote