一、常用句型
（一)原因
1.A number of factors are accountable for this situation.
2. The answer to this problem involves many factors.
3. The phenomenon mainly stems from the fact that...
4. The factors that contribute to this situation include...
5. The change in ...largely results from the fact that...
6. We may blame ...,but the real causes are...
7. Part of the explanations for it is that ...
8.One of the most common factors (causes ) is that ...
9.Another contributing factor (cause ) is ...
10.Perhaps the primary factor is that …
11.But the fundamental cause is that ...
（二)比较
1.The advantage far outweigh the disadvantages.
2.The advantages of A are much greater than those of B.
3.A may be preferable to B, but A suffers from the disadvantages that...
4.It is reasonable to maintain that ...but it would be foolish to claim that...
5.For all the disadvantages, it has its compensating advantages.
6.Like anything else, it has its faults.
7.A and B has several points in common.
8.A bears some resemblances to B.
9.However, the same is not applicable to B.
10. A and B differ in several ways.
11. Evidently, it has both negative and positive effects.
12. People used to think ..., but things are different now.
13. The same is true of B.
14. Wondering as A is ,it has its drawbacks.
15. It is true that A ... , but the chief faults (obvious defects )are ...
二、常用短语
1.kinds of 各种各样的
2. either…or…或者……或者……，不是……就是……
3. neither…nor…既不……也不……
4. Chinese tea without, anything in it 中国清茶
5. take a seat 就坐
6. home cooking 家常做法
7. be famous for 因……而著名
8. on ones way to在……途中
9. be sick/ill in hospital生病住院
10. at the end of在……的尽头，在……的末尾
11. wait for 等待
12. in time 及时
13. make one's way to…往……（艰难地）走去
14. just then 正在那时
15. first of all 首先，第一
16. go wrong 走错路
17. be/get lost 迷路
18. make a noise 吵闹，喧哗
19. get on 上车
20. get off 下车
21. stand in line 站队
22. waiting room 候诊室，候车室
23. at the head of……在……的前头
24. laugh at 嘲笑
25. throw about 乱丢，抛散
26. in fact 实际上
27. at midnight 在半夜
28. have a good time=enjoy oneself玩得愉快
29. quarrel with sb. 和某人吵架
30. take one's temperature 给某人体温
31. have/get a pain in…某处疼痛
32. have a headache 头痛
33. as soon as… 一……就……
34. feel like doing sth. 想要干某事
35. stop…from doing sth. 阻止……干某事
36. fall asleep 入睡
37. again and again再三地，反复地
38. wake up 醒来，叫醒
39. instead of 代替
40. look over 检查
41. take exercise运动
42. had better(not) do sth. 最好（不要）干某事
43. at the weekend 在周末
44. on time 按时
45. out of从……向外
46. all by oneself 独立，单独
47. lots of=a lot of 许多
48. no longer/more=not…any longer/more 不再
49. get back 回来，取回
50. sooner or later迟早
51. run away 逃跑
52. eat up 吃光，吃完
53. run after 追赶
54. take sth. with sb. 某人随身带着某物
55. take(good) care of…=look after…(well) （好好）照顾，照料
56. think of 考虑到，想起
57. keep a diary 坚持写日记
58. leave one by oneself 把某人单独留下
59. harder and harder 越来越厉害
60. turn on打开（电灯、收音机、煤气等）
61. turn off 关
