写英语作文:将来我国科技是什么样的

题目

写英语作文:将来我国科技是什么样的
词数:80-120字
他将给我们什么大的影响

答案

一、一般现在时：
概念：经常、反复发生的动作或行为及现在的某种状况.
时间状语：always,usually,often,sometimes,every week (day,year,month…),once a week,etc.
基本结构：①be动词；②行为动词
否定形式：①am/is/are+not;②此时态的谓语动词若为行为动词,则在其前加don't,如主语为第三人称单数,则用doesn't,同时还原行为动词.
一般疑问句：①把be动词放于句首；②用助动词do提问,如主语为第三人称单数,则用does,同时,还原行为动词.
二、一般过去时：
概念：过去某个时间里发生的动作或状态；过去习惯性、经常性的动作、行为.
时间状语：ago,yesterday,the day before yesterday,last week(year,night,month…),in 1989,just now,at the age of 5,one day,long long ago,once upon a time,etc.
基本结构：①be动词；②行为动词
否定形式：①was/were+not;②在行为动词前加didn't,同时还原行为动词.
一般疑问句：①was或were放于句首；②用助动词do的过去式did 提问,同时还原行为动词.
三、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.
四、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.
五、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 +done.
一般疑问句：have或has.
六、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.
七、一般将来时：
概念：表示将要发生的动作或存在的状态及打算、计划或准备做某事.
时间状语：tomorrow,next day(week,month,year…),soon,in a few minutes,by…,the day after tomorrow,etc.
基本结构：①am/is/are/going to + do；②will/shall + do.
否定形式：①was/were + not; ②在行为动词前加didn't,同时还原行为动词.
一般疑问句：①be放于句首；②will/shall提到句首.
八、过去将来时：
概念：立足于过去某一时刻,从过去看将来,常用于宾语从句中.
时间状语：the next day(morning,year…),the following month(week…),etc.
基本结构：①was/were/going to + do；②would/should + do.
否定形式：①was/were/not + going to + do;②would/should + not + do.
一般疑问句：①was或were放于句首；②would/shou
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