人教版英语必修4unit2LearningaboutLanguage.ppt

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单击添加副标题
人教课标版
高一必修4
Unit 2
添加标题
Word study
ONE
sunburnt, rid…of, expand, circulate,
would rather, struggle, expert, satisfied
with, equip, crop, thanks to
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Answer key for Exercise 1 on Page 12:
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statistics, globe
super, nationalities
Hunger, disease
Vietnam, occupations
freedom, exported
Answer key for Exercise 2 on Page 12:
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decade, struggle, expanding, Equipped,
output, grain, crops, battles, disturbing
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Answer key for Exercise 3 on Page 12:
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动词-ing形式作主语和宾语
Grammar
动词-ing形式是在动词末尾加 -ing ，属于非谓语动词。如：do-doing, write- writing , sit-sitting , ：not+ v--ing 构成
动词-ing形式作主语或宾语时，也可称为动名词。
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动词-ing形式作主语
动词-ing形式作主语表示抽象的或泛指的动作, 谓语动词用单数。如：
Reading aloud is very important for us to learn a foreign language.
Going to bed early and getting up early is considered to be a good habit.
动词-ing形式作主语时常后置, 用it作形式主语，用形容词或名词作表语。常见的作表语的名词或短语有：no use, no good, fun, hard work, a hard / difficult job, a wonder, a waste of time等。如：
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Is it worthwhile quarrelling with her? It’s no good waiting here. Let’s go home. It was a waste of time reading that book.
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“There is + no”后可以用动词-ing形式作主语，表示“没法……”。如：
There was no telling when this might happen again. 没法预料这样的事什么时候会再发生。
There was no knowing what he could do. 他能做什么很难说。