1. look it up in a dictionary or an encyclopaedia (代词it放look up中间)
2. buy her an encyclopaedia = buy an encyclopaedia for her
3. on the Earth
4. on earth 究竟
5. two hundred students
6. hundreds of students
7. two hundred of the students
8. a long time before… 在。。。之前很长时间
9. live everywhere (everywhere前没有in)
10. Some…. Others… 有的。。。有的。。。
11. as+形容词或副词原级as 和。。。一样
12. the same+名词 as
13. not as/so…as 不和。。。一样
14. could 1）can的过去式 2）表示委婉的语气词
15. sheep 单复数同行
16. fierce – fiercer – fiercest
17. die out suddenly
18. be dying out
19. know about … from the skeletons, eggs and footprints
20. the lives of dinosaurs
21. lives1) life生命，生活的复数形式 2)动词live的三单形式 （注意发音）
22. the way to be / of doing做某事的方法
23. the way is to do…方法是。。。
24. own as few things as possible
25. see sb. doing/do sth.
26. drink water by the fountain （by相当于close to或next to）
27. throw away his cup (throw – threw – thrown)扔掉他的杯子
28. become even happier
29. be famous for
30. be famous as
31. After leaving school,…
32. After he left school,…
33. sell newspapers (sell-sold-sold)
34. deliver mail (mail泛指邮件，无复数)
35. at the same time 同时
36. Disney’s most famous cartoon character （有了物主代词Disney’s,最高级前面
就没有the）
37. a real mouse (mouse复数mice)
38. countv. 数countableadj.可数的uncountable不可数的
39. singular单数plural复数
40. a piece / …pieces of furniture
41. a loaf/ … loaves of bread
42. a carton / … cartons of yogurt
43. a bar/ …bars of soap （肥皂）
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