河南语法十-非谓语动词.pptVIP

21．My brother keeps __ me with my work. A．to help B．help C．helping D．helped 22．Ive enjoyed __ to take with you. A．to be able B．being able C．to been able D．of being able C B 23．Mr. Wang came into the office without __ the door. A．knock B．knocking at C．to knock at D．knocking to 24．(2017·重庆中考)Dave is a good boy and he always finishes __ his homework on time. A．do B．did C．does D．doing B D * 河南语法十　非谓语动词 考点1 动词不定式 动词不定式的基本形式是“to＋动词原形”，否定形式是 在不定式前加not。不定式具有动词的特点，可以有自己 的宾语和状语，但没有人称与数的变化，在句中也不能 作谓语。动词不定式及其宾语和状语构成不定式短语。 (1)作主语 动词不定式作主语时，可以用动名词替换且常用it作形式 主语，把不定式后置，常构成“It＋be＋adj. (＋for sb. )＋ 动词不定式”。 Its important (for us) to protect the environment. (对我们来说)保护环境很重要。 (2)作表语 My job is to teach English. 我的工作是教英语。 (3)作宾语或宾语补足语 ①接动词不定式作宾语的动词或短语有want, begin/start, love, forget, remember, teach, decide, agree, seem, would like, plan等。 ②接动词不定式作宾语补足语的动词有ask, tell, invite, allow, want, wish, encourage等。 ★在使役动词make, let, have和感官动词see, feel, notice, look, smell等的后面作宾语补足语时，不定式符号to要 省略。help后的不定式可带to也可不带to。 make sb. do sth. 的被动语态必须加to make sb. do sth. 中用不带to的不定式作宾语补足语，但是 变为被动语态时，不定式符号to要还原。 (4)作定语 I have a lot of homework to do. 我有许多家庭作业要做。 ★动词不定式与所修饰的名词之间是动宾关系，如果不 定式是不及物动词，其后要有相关的介词。 The cat is easy to take care of. 这只猫很容易照顾。 (5)作状语 Mrs. Wang went to Shanghai to see her daughter. 王太太去上海看她女儿。(目的) Were glad to meet you here. 我们很高兴在这儿见到你。(原因) He is too tired to work on. 他太累了不能继续工作了。(结果) (6)“疑问词＋动词不定式”结构 疑问词who, what, when, where, how, which等后接动词 不定式，在句中作主语、宾语、宾语补足语、表语等。 The teacher is telling the students what to do. 老师正告诉学生们做什么。 He didn‘t know where to go(＝where he should go)． 他不知道去哪里。 (7)含动词不定式的特殊句型与短语 too. . . to. . . 太……而不能…… had better do sth. 最好做某事 prefer to do sth. rather than do sth. 宁愿做某事，而不愿做某事 make sb. do sth. 让某人去做某事 be made to do sth. 被迫做某事 1．(2017·齐齐哈尔中考)—It takes me half an hour __ playing the piano. How about you? —I usually spend 20 minutes __it. A．practicing; on B．to