外研版必修三第四单元语言点解析

(1)T h e re w a s n o th in g to b e d o n e . 毫无办法。 T h e re w a s n o th in g to d o . 没事可做。 (2) situation n. 位置,地位,形势,情况,处境 这个房子的地点很好。The house has a fine situation.. 形势非常复杂。The situation was complicated. **政治局势 political situation **经济局势 economic situation (3)survive vt.& vi. 活下来，幸存，保存下来 洪水过后，幸存者极少。 Few survived after the flood.
你最好能把这篇文章压缩到两千字左右。
【总结归纳】
cut down 砍倒；削减，缩减；减少
【拓展】 cut in 插话 cut up 切碎 cut off 切断(电，气，水，电话等)
【即学即练】 用以上所学cut短语的适当 形式填空。 1. When he failed to pay this bill, the company _____ cut off his electricity. 2. He always cut _____ up the pizza before he eats it. 3. It’s impolite to _____ cut in when other people are talking. down too many trees without 4. Cutting ___________ planting some will make the environment worse.
c a tc h 短
语
catch up with catch hold of catch fire catch sight of
赶上 抓住 着火 看见
4、“There was nothing to be done. It was the most frightening and the most dangerous situation I’ve ever been in. You just had to hope you’d survive. I thought I was going to disappear under the sand.”
8. The storms sometimes continue all day and traffic moves very slowly because the thick dust makes it difficult to see. 本句中含有一个make复合结构：make + it + adj. + to do。在makes it difficult to see 中， it是形式宾语，形容词difficult 作宾语补足 语, 不定式短语to see作真正的宾语。常用于 这种结构的动词还有：think, find, believe, feel, suppose等；用作真正宾语的可以是动 词不定式、动词-ing形式和从句。
巩固练习
1. Mr. Smith, ________ of the ________
speech, started to read a novel.
A. tired, boring
C. tired, bored
B. tiring, bored
D. tiring, boring
由于Mr. Smith对那个令人厌烦的演讲 感到厌倦，他开始读起了小说。
如： We found it difficult to get along with him. 我们发现与他相处很难。 We thought it wrong wasting our time. 我们认为浪费我们的时间是不对的。 He found it strange that no one else had arrived. 他发现奇怪的是没有其他人来。
2> 与frightening 对应的形容词是 frightened “感到害怕的, 感到恐惧的” 类似的还有: excited, interested, disappointed, puzzled, surprised, shocked, astonished, moved, amused, bored, encouraged, delighted, inspired, pleased, tired, worried等。
人们认为要是一本书有趣的话，那么它
肯定会使读者感兴趣。
3. The headmaster is really annoyed! Look at his _______ look. A. frightened C. fright B. frightening D. frighten
校长真的生气了！看看他让人害怕 的表情．
fright→frighten→frightening→frightened→frightful
n.惊吓 v.使害怕 adj.吓人的 adv.害怕的 adj.可怕的
（4）frightening 令人害怕的,令人恐怖的 1> 类似的形容词还有: exciting, interesting, disappointing, puzzling, surprising, shocking, astonishing, moving, amusing, boring, encouraging, delighting, inspiring, pleasing, tiring, worrying 等.
9. forecast(
fore-构成名词和动词“预先”，cast “描述” forename名字 foresee 预见 foretell预言 forewarn 预先告诫 )
【语境展示】 1) Experts are forecasting a fall in unemployment. 专家预测失业人数将下降。 2) The report forecasts that prices will rise by 3% next month. 报告预测下月物价将上涨3%。 3) He is forecasting what the weather will be like tomorrow. 他在预测明天会是什么天气。
(3）不定式的一般形式所表示的动作，通常与主要谓 语所表示的动作（状态）同时发生或是在它之后发生； 假如不定式所表示的动作在谓语所表示的动作（状态） 之前发生，不定式就要用完成式。
比较：Βιβλιοθήκη I am glad to have seen your mother.(= I am glad I have seen your mother.) I am glad to see you.
5、part of .....的一部分 eg. He walked part of the way home with me. There is but one China and Taiwan is part of China. 6、Sandstorms in China appear to have increased in recent years as a result of “desertification”. “沙漠化”导致沙尘暴近几年在中国似乎有所增加. appear vi. (1)出现、呈现、显现 (2)显得、看来、似乎 A bus appeared around the corner. They appeared not to know what was happening. She appeared to be in her late thirties. 7、This is a process that happens when land becomes desert because of climate changes and because beople cut down trees and dig up grass. 这是由于气候变化和人类砍伐树木、铲除草皮而使土地 变成沙漠的一个过程。
cut down 【语境展示】 1) Most of the trees are being cut down and the forest is in danger of disappearing. 大部分树正在被砍倒，这个森林面临着消 失的危险。 2) We must cut down our expenses. 我们必须缩减我们的开支。 3) You’d better cut the article down to about 2,000 words.
This is a process that happens when land becomes desert because of climate changes and because people cut down trees and dig up grass. = Because of climate changes, trees being cut down and grass being dug up, land becomes desert and desertification happens.
4). He is a history major. / His major is history. 他是主修历史的学生。/ 他的专业是 历史。 5). She majored in philosophy when she was studying at Harvard. 在哈佛上大学时，她主修哲学。
Language Points
1、a major disaster 一个主要灾害
major
（1）adj. (数量、大小、程度等)较
大的，较多的，较大范围的；主要
的，重要的；严重的
（2）n. 主修科目；专业；主修某