考点演练
　　一、用方框中所给词的适当形式完成句子。
　　
　　1.−Shall I help you carry the heavy bag,madam?
　　　−Thanks____________.That couldn't be better.
　　2.Sandy's mother got a lot of____________at her fortieth birthday party.
　　3.To eat healthily,she has been used to ____________low−calorie food for herself.
　　4.What a terrible experience!____________,lucky us,we are safe now.
　　5.−Miss Li used to____________as a teacher in Shanghai before she came here,right?
　　　−Yes.She taught Geography there for nearly ten years.
　　二、根据中文意思用英文完成句子。
　　1.__________________________(我们有必要洗手)when we are back home.
2.−Peter,do you still________________(和你的老朋友们保持联系)？−Of course.They helped me a lot in the past.
3.−−Why must we close the chemical factory?
−Because it has caused________________(许多污染).We need a better environment.4.I________________(过去起床)athalf past six,but now I__________________(习惯了起床)at seven.

一、1. a lot 2. presents 3. preparing 4. Anyway 5. work
二、1. It is necessary for us to wash hands 2. keep in touch with your old friends 3. a lot of/lots of pollution 4. used to get up; am used to getting up