Unit2 Lesson1 语法练习题 -2022-2023学年高中英语北师大版（2019)选择性必修第一册

选择性必修一 Unit2 Success 动词的ing形式 I 作主语 v-ing形式作主语，相当于一个名词, 多指抽象、概念性的动作，经常性或习惯性的行为。 1. v-ing形式作主语，通常直接置于句首。谓语动词用单数形式 ⑴ Talking is easier than doing. ⑵ Learning new words is very important for me. ⑶ Reading aloud is a good way in learning a language. ⑷ Playing with fire is dangerous. 2. 有时可用it作形式主语前置，真正的主语是 v-ing形式。 但这种句子形式有一定的限制，作表语的只能是某些形容词或少数名词。 ⑴ It's worth making the effort. ⑵ It is pleasant working with you. ⑶ It's no use crying over split milk. ⑷ It was a waste of time reading 常用句型有： It + be + a waste of time doing...做……是浪费时间的。 It is/was no good/use doing...做……是没有用的。 It is/was worth/worthwhile doing...做……是值得的。 It is/was hardly/scarcely worth doing...做……是不值得的。 There is no sense in doing ...做……没有用/没有意义。 II作表语 1. v-ing形式作表语时放在系动词之后，用来泛指某种动作或行为，以说明主语的身份、性质或情况。 ⑴ What I hate most is being laughed at. ⑵ My job is looking after the children. 2. v-ing形式作表语时放在系动词之后，用来表示主语所具有的特征。 His concern for his mother is most touching. His words are encouraging.  III 作宾语 1.v-ing形式作宾语时，可位于动词(短语)之后，也可位于介词(短语)之后。 Do you enjoy teaching?  I couldn’t help laughing. I have decided to stop smoking. 2.need, want, require后作宾语的V-ing常用主动形式表示被动意义。 ① Your house needs repairing (=to be repaired). ② Your coat wants washing (=to be washed).  3. v-ing可以在句中用作介词的宾语。 v-ing作介词宾语，经常用在一些短语的后面，如devote to, get down to, object to, pay attention to, succeed in, stick to, set about, think about/of, lead to, be good at, insist on, feel like, be aware of等。 They developed new methods of growing food, hunting and moving around. You see. I knew you would feel better after eating something. She insisted on writing at once. They objected to leaving the motel. 巩固练习 I.用括号内所给单词的适当形式填空。 1. In my opinion, _________(follow) the dog from one place to another is no easy work. 2. Do you remember _______(see) the man in the photo somewhere before? 3. _________(make) a decision in such a short time isn’t easy. 4. The young player finally admitted ________ (make) a serious mistake. 5. It is no good ________ (learn) theory wi