encourage的用法和例句 encourage的用法和辨析( 五 )


⑥不定式的完成式也可作句子的主语
例:To have made the same mistake twice was unforgivable.
两次犯同样的错误是不可原谅的 。
2、折叠作宾语
(1) 以下动词后,只能跟不定式作宾语
afford (付得起),agree(同意),aim(力求做到),appear(显得),arrange(安排),ask(要求),attempt (试图),care(想要),choose(决定),claim(声称),condescend(屈尊),consent(准许),decide(决定),demand(要求),determine(决心),endeavor(竭力),expect(期待),fail(未履行),help(帮助),hesitate(犹豫),hope(希望),learn(学会),manage(设法),neglect(疏忽),offer(主动提出),plan(计划),prepare(准备),pretend(假装),proceed(接着做),promise(答应),prove(证明),refuse(拒绝),resolve(解决),seem(觉得好像),swear(发誓),tend(往往会),threaten(预示),undertake(承诺),volunteer(自愿做),vow(发誓),want(想要),wish(希望)
例:The driver failed to see the other car in time.
司机没能及时看见另一辆车 。
(2) 动词+疑问词+ 不定式
(decide,know,consider,forget,learn,remember,show,understand,see,wonder,hear,find out,explain,tell)
例:Please show us how to do that. 请演示给我们如何去做 。
注:疑问词带不定式在句中作成分时,谓语动词用单数 。
(3)当复合宾语中的宾语是不定式时,先用形式宾语it代替不定式,把不定式置于补语之后,即:主语+动词+it+补语+to do句式 。
例:We think it quite important for us to learn a foreign language well.
3、折叠作补语
(1) 动词+宾语+不定式(to do)
常见动词:advise,allow,believe,cause,challenge,compel,declare,encourage,forbid,force,find,hire,induce,instruct,invite,like,order,permit,persuade,remind,request,require,select,send,suppose,tell,train,urge
例: Father will not allow us to play on the street.
父亲不让我们在街上玩耍 。
(2) to + be 的不定式结构,作补语的动词 。
常见动词:acknowledge, believe, consider, think, declare(声称), discover, fancy(设想), feel, find, guess, judge, imagine, know, prove, see(理解), show, suppose, take(以为), understand
例:We consider Tom to be one of the best students in our class.
我们认为汤姆是班上最好的学生之一 。
(3) to be +形容词
常见动词:seem, appear, be said, be supposed, be believed, be thought, be known, be reported, hope, wish, desire, want, plan, expect, mean…
例:The book is believed to be uninteresting.
人们认为这本书没什么意思 。
(4) there be+不定式
①(believe,expect,intend,like,love,mean,prefer,want,wish,undrstand)
例:We didn't expect there to be so many people there.
我们没料到会有那么多人在哪里 。
②有些动词需用as 短语做补语(regard,think,believe,take,consider.)

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