1、Exercise 51. Dont forget to return the library book, _?A will you B. can you C. do you D. are you2. I dont think he will come here on time, _?A. wont he B. will he C. does he D. is he3._ good news it is!A. what B. what a C. how a D. how4. You never came late for school, _?A. did you B. didnt you C.
2、were you D. wont you5. Dont make so much noise. Lily, _?A. do you B. dont you C. will you D. wont you6. I hear the tall girl wearing glasses in American. Lets go and say hello to her, _?A. will you B. shall we C. wont she D. does she7.Mom, Im not young. Let me go there alone, _?A. will you B. shall
3、we D. wont I D. do you8. There is something wrong with your bike, _?- Yes. I will have it _ tomorrow.A. isnt it mend B. isnt there mended C. isnt it mended D. isnt there mend9. I think you are wrong, _?A. arent you B. are you C. do I D. dont I 10. _ nice weather it is!A. what B. how C. what a D. how
4、 a 11._ good time we had at the party last night!Yes, It was _exciting party that I would never forget itA. What so B. How such C What a such an D How a so an12.Alice had nothing for breakfast this morning,_?A. had she B. hadnt she C. did she D. didnt she13. lets go to the zoo by taxi_?Maybe we can
5、go there _. Its not far.A. wont you on foot B. wont you by foot C. shall we by foot D. shall we on foot 14._terrible weather we had last Sunday!A. What B. What a C. Such D. How15. E-mail is very popular today. People seldom write letters now,_?A. did they B. do they C. didnt they D. dont they16. To
6、wash clothes_ her job every nightA. is B. are C. become D. have been17. please dont forget write_ to me, will you?A. to write B. writing C. write D.writes18. English _ in many countriesA. speaks B. is spoken C. is speaking D. was spokenPassage 1Heres a story about Mings life on the waters. Ming has
7、lived all his life on a wide r 1 in china. His home is a large house-boat with a roof, one of hundreds that move up and down. In about six years he has not once been on l 2 but he is never lonely. He is a strong swimmer. In fact, he could swim before he could walk. When he wants to play with his f 3
8、 he just swims across to their boats or asks them to v 4 him.Mings father is a fisherman, but he never u 5 a line or a net（网）. Great black birds called cormorants do the fishing for him. Rings（圈）have been put around the birds n 6 so that they cannot eat the fish they catch. They have been t 7 to bri
9、ng the fish to people. And then people reward（奖励）them with a fine big fish as soon as their work is f 8 Ming loves watching the cormorants, but better still he likes going s 9 with his mother. The shops, of course, are boats very like his o 10 .Passage 2Can animals be made to work for people? Some s
10、cientists think that one day animals may be trained（训练）to do a number of simple jobs i 1 of people. They say that at a circus（杂技场）,for example, we may see elephants, monkeys, dogs and other animals doing q 2 skillful（熟练的）things. Perhaps you have seen them on the television or in a film. If you watch
11、 closely, you may find that the trainer（驯兽员）always g 3 the animal some sugar o 4 a piece of fruit as a reward（报酬） . The scientists say that many d 5 animals may be trained to do a lot of simple things if they know they will get a reward f 6 doing that.Of course, as we know, dogs can be trained to look after a house, and soldiers in both old and modern t 7 have u 8 geese to give warning（警报）by m 9 a lot of noise when an enemy comes near. And also it may be possible to train animals to work in families or f 10 .
