M5Unit3动词不定式.pptVIP

need to do want to do sth. offer to do sth. decide to do sth. remember to do sth. ;动词不定式的用法 ;但它可以保留动词的性质，其本身可以带宾语或状语等附加成分（不定式和其附加成分称为不定式短语）。动词不定式（短语）的句法功能非常广泛，在句中可作主语、宾语、补足语、表语、定语及状语等成分。 1、作宾语 (1) 能够接动词不定式作宾语的有 ask, agree, decide, fail, hope, manage, offer, need, try, want, plan, prepare, ;promise, wish 及 would like/love 等动词，但 finish, enjoy, miss, mind, suggest 等动词后面通常只能接动名词作宾语。例如： I hope to visit this place again. 我希望能再度访问此地。 She enjoys reading very much. 她非常喜欢读书。 The driver failed to see the other car in time. 司机没能及时看见另一辆车。;1、作宾语 (2) 动词不定式与名词构成复合宾语时，通常要用 it 作形式宾语，而将真正的宾语——动词不定式后置。例如： I found it difficult to see him here. 我发现在这里见到他是很难的。 ;e.g. I found it very important to learn English well. = I found that _ ____ very important to learn English well. I feel it my duty to do so. = I feel that _ _ my duty to do so.;2. 动词不定式做宾语补足语。 动词不定式作宾语补足语，是对宾语的补充说明。常见的动词有：want, tell, would like, choose, allow, ask, invite, help等。 注意：（1）以上动词后接不定式做宾语补足语时，若要表达否定意思，要在to do前面加not，构成not to do的形式。 e.g. Mr. Han told us not to make too much noise.;作宾语补足语不带to 的情况;3. 动词不定式作状语 (1)表目的。 如果表示“做某事是为了什么”，可以用动词不定式表示目的，作目的状语。 e.g. Dylan trained hard to improve his basketball skills.;（2）. 表原因状语: 放在sorry, glad, surprised, excited等词后面。(有些资料上把这类称为不定式在表示心理、情感、评价等的形容词后, 对其进行补充说明, 作形容词补足语）如： I am glad to see you here． I am sorry to trouble you． ;;It’s +;e.g It is hard ___ you to do it well. = For you to do it well is hard. It is kind ___ you to help me. = You are kind to help me.; 5.定语 动词不定式做定语放在所修饰的名词 、代词的后面。 例: He is the first person to sail around the world. I have a lot of work to do． The doctor said he could do nothing to help the boy． ;6. 用作表语;7. 疑问词who, what, which, where, when, how 加to do可构成不定式短语, 在句中可用作主语、宾语、宾语补足语、表语等。;比较(Compare);找出句子中的不定式, 并说出作用：;5. I have a lot to tell you. 6. It’s not right to be always thinking of oneself. 7. We often see him play football. ;二、双宾语 双宾语由直接宾语和间接宾语组成。直接宾语是谓语动词的承受者，间接宾语表示谓语