Unit3  Life in future

6. lack vt.缺乏；沒有  n.缺乏；短缺的東西
[重點用法]
lack sth.(wisdom/common sense/money缺乏智慧/常識/金錢)
be lacking in (courage/determination to do...) 缺乏做某事的勇氣/決心
a/the lack of…  ……的缺乏
for lack of  因缺乏……
have no lack of 不缺乏
[典例]
1) you will not be lacking in support from me. 你將得到我的幫助
2) i lacked for nothing. 我不需要任何東西
[練習]用lack的適當形式填空。   
1)though _________(1ack)money，his parents managed to send him to university.   
2)he completely _______ conscience.
3)she is ________ in responsibility.
4) ______ of rest makes her look tired.
keys: 1)lacking 2)lacked 3) lacking 4)lack

7. require v.需要；要求；命令
[重點用法]   
require+ n./ pron. /doing sth./ to do sth./that-clause
[典例]
1) this suggestion will require careful thought. 這建議需要仔細考慮。   
2) to carry out this plan would require increasing our staff by 50％.   
執(zhí)行這—計劃需要增加50％的人員。    
[練習]用括號里所給詞的適當形式填空。   
1)his health requires that he _____(go)to bed early.   
2)the floor requires _______ (wash).   
keys: 1) (should) go  2)washing

8. assist vt./vi.幫助；援助訂.參與，出席
[重點用法]
assist sb. in/with sth.輔助(某人)某事
assist sb.in doing sth.  輔助(某人)做某事
assist sb.to do sth.  輔助(某人)做某事
assist with  幫助(照料，做)；在……上給予幫助
[典例]
1)i am willing to assist you whenever there is an opportunity.
有機會我愿隨時幫你。
2)i'm afraid i can't assist you，you have to go and see the manager.
我恐怕幫不上忙，你得去找經理。
3)the headmaster assists with a lot of things when free.
有空時校長幫忙做了很多事。
4)you will be required to assist mrs.smith in preparing a report.
你將要幫助史密斯夫人準備一份報告。
[練習]  根據(jù)句子的意思在括號里填入適當?shù)脑~。   
1)the young nurse was very nervous when she ________ in her first operation.   
2)a team of nurses __________ the doctor ________ performing me operation.
3)she employed a woman to _____ her _____ the housework.   
4)good glasses will ________ you _________ read. 
keys: 1)was assisting 2)assisted; in 3) assist; with 4)assist; to
ⅳ重點詞組  （旨在提供綜合運用所需材料）
1. take up  從事；占(時間、空間、注意力、等)；繼續(xù)
 [典例]
1)this table takes up too much room.這張桌子太占地方。
2)she has taken up a job as a teacher.她當上老師了。