发布网友 发布时间:2022-08-28 01:46
共1个回答
懂视网 时间:2022-08-28 06:08
1、现在进行时:概念:表示现阶段或说话时正在进行的动作及行为。时间状语:now, at this time, these days, etc基本结构:am/is/are+doing否定形式:am/is/are+not+doing一般疑问句:把be动词放于句首。
2、过去进行时:概念:表示过去某段时间或某一时刻正在发生或进行的行为或动作。时间状语:at this time yesterday, at that time或以when引导的谓语动词是一般过去时的时间状语等。基本结构:was/were+doing否定形式:was/were + not + doing一般疑问句:把was或were放于句首。
3、现在完成时:概念:过去发生或已经完成的动作对现在造成的影响或结果,或从过去已经开始,持续到现在的动作或状态。时间状语:recently, lately, since…for…,in the past few years, etc基本结构:have/has + done否定形式:have/has + not +d one一般疑问句:have或has。
4、过去完成时:概念:以过去某个时间为标准,在此以前发生的动作或行为,或在过去某动作之前完成的行为,即“过去的过去”。时间状语:before, by the end of last year(term, month…),etc基本结构:had + done否定形式:had + not + done一般疑问句:had放于句首。
热心网友 时间:2024-11-20 22:27
英语分词时态的语法总结
分词时态一般是与主语的时态保持一致,除此之外有的还需先于主动词。
1)与主语动词同时
Hearing the news, he jumped with joy. 听到这一消息,他高兴得手舞足蹈。
Arriving there, they found the boy dead. 刚一到那儿,他们就发现那男孩死了。
典型例题
The secretary worked late into the night, ___a long speech for the president.
A. to prepare B. preparing C. prepared D. was preparing
答案B. 此处没有连词,不能选D,否则出现了两个谓语动词worked和was preparing。 只能在B,C中选一个。又因前后两个动作同时发生,且与主语为主动关系,应用现在分词。
2)先于主动词
While walking in the garden,he hurt his leg. 在花园里散步时他伤了腿。
分词作时间状语,如果先与主动词的动作,且强调先后, 要用having done。
Having finished his homework, he went out.
=As he had finished his homework, he went out.
做完作业后,他出去了。
典型例题
___ a reply, he decided to write again.
A. Not receiving B. Receiving not C. Not having received D. Having not received
答案C. 本题考查分词的时态与分词的`否定式。根据题意判断,分词的动作(接信)发生在谓语动词的动作(决心再写信)之前,因此用分词的完成式。分词的否定式的构成为not +分词,故选C。该句可理解为:Because he had not received a reply, he decided to write again.
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