动词的ing-形式做主语和宾语.pptVIP

Rewrite the following sentences using the –ing form as the subject. Example: It is necessary to get water from wet to dry places. —Getting water from wet to dry places is necessary. 1. It is nice to help people in need of help. Helping people in need of help is nice. 2. It is not easy to grow super hybrid rice. Growing super hybrid rice is not easy. 3. It is not difficult to learn more about farming. Learning more about farming is not difficult. 4. In the countryside it is not as easy to do research as in the city. Doing research in the countryside is not as easy as in the city. 5. To get rid of hunger is very important for some African countries. Getting rid of hunger is very important for some African countries. 6. It is important to explain this again or we will confuse the students. Explaining this again is important or we will confuse the students. Which verbs are followed by –ing? Which by the infinitive? First write doing or to do over the correct group. Then write the verbs in the box in the correct columns and finally practise making at least four sentences with them. * * 动词-ing形式作主语和宾语 1. 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, etc. 否定形式：not + v--ing 2. 动词-ing形式作主语或宾语时，也可称为动名词。 动词-ing形式作主语 1. 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. 2. 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： 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. 3. “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。 动词-ing形式作宾语 1. 有些动词如admit, avoid, consider, escape, deny, risk, suggest等后能接动词