Unit18 The United States of America知识点总复习教案
27. settlers made agreements with native american chiefs. 移民者和土著人头领达成协议。(p. 47 第三段第5行)
▲agreement此处作可数名词,意为“协议”,常与arrive,reach,keep,break,make,sign等动词连用。如: ① the two countries signed an agreement on nuclear weapons.两国签订了一项关于核武器的协议。② i'm sorry you couldn't arrive at an agreement. 很遗憾你们不能达成协议。③ many agreements have been made between the two countries. 两国之间签订了很多协议。
【注】agreement可以后接不定式或从句表示agreement的内容作定语 ① we reached an agreement with them to cooperate fully at all time. 我们与他们达成在任何情况下都合作的协议。② the negotiators came to an agreement that all troops would be withdrawn. 谈判者达成协议,撤出所有部队。
【注】 agreement可用作不可数名词,意为“意见(或目的等)”“一致”“同意”。如: ① the two sides failed to reach agreement. 双方未能达成共识。② we are in agreement with their decision. 我们同意他们的决定。③ we are in full agreement with them on all points. 在所有方面我们和他们看法完全一致。④ there's little agreement as to what our policies should be. 关于我们该采取什么政策,意见很不一致。⑤ we have to get their agreement before we go ahead with the plan. 在进行这项计划之前,我们必须得到他们的同意。
28. while early settlers had killed bison for food, … 早期的移民宰杀野牛是为了充饥… (p.47 integrating skills reading 第四段 第2行)
* while conj. 在……的同时,当……的时候
(1) while与延续性动词连用,而when既可与延续性动词也可与终止性动词连用。
(2) 表示一个人的两个动作交替或同时进行时,多用as表示“一边……,一边……”;when很少用于这种情况。
(3) 当表示两个同步发展的情况时,多用as而不用when或while。
(4) 当表示两个短促行为或事件几乎同时发生时,用as要多于用when。
(5) while用作并列连词,连接一个并列句,意为“而,却”,表示前后意义上的对比和转折。
while he was reading,he fell asleep. 他在读书的时候睡着了。he came while we were having dinner. 我们在吃晚饭时他来了。when he came, we were having supper. 他来时,我们正吃晚饭。(不能用while) when / while i was sleeping, a thief broke in我睡觉时,小偷撬门而入。 he looked behind from time to time as he went. 他一边走,一边不时地向后看。she dances as she sings. 她一边唱歌,一边跳舞。as time went on / by, she became more and more worried. 随着时间的推移,她变得越来越烦躁不安。as children get older,they are getting more and more interested in things about them. 随着孩子们年龄的增长,他们对周围的事物越来越感兴趣。 just as he caught the flying worm, he gave a loud cry. 他刚抓住那只飞虫,就大声地叫了起来。i thought of it just as you opened your mouth.我刚想起,你就开口说了出来。 some people are rich while others are poor. 有些人富,有些人穷。i'm interested in sports while my brother is fond of music.我对体育很感兴趣,而我的弟弟爱好音乐。