四六级

　　暑假正是恶补英语基础知识的最好时期，千万别荒废！小编今天为大家准备了英语四级考试中有关现在进行时的语法知识点，各位考生快来看看自己都掌握了没有？

　　现在进行时代替将来时

　　1)表示即将发生的或预定中计划好的活动。

　　Are you staying with us this weekend? 这周和我们一起度周末吗?

　　We are leaving soon.　 我们马上就走。

　　2)渐变动词，如：get, run, grow, become, begin及die。

　　He is dying.

　　现在进行时被动语态的用法

　　1、表现正在进行或发生的被动动作，常与now, look等词连用。

　　e.g.She is being examined by the doctor now.

　　2、表示现阶段或目前这段时间正在进行的被动动作，但这一被动动作在此时此刻不一定正在发生。

　　e.g.A new factory is being built.They are being taught English at present .

　　少数及物动词的进行时表示按计划、安排将要承受某个动作。

　　Some rock music is being played by them next下面将由他们演奏一些摇滚音乐。

　　An party is being held tonight. 今晚将要举办一场晚会。

　　4. 有些动词进行时的主动形式就可以表示被动的意思,常见的这些动词有:

　　print, cook, fry, bake, burn, hang.

　　e.g. The house is burning.The meat is cooking.

　　5. 在be + under / in/on +n. 的结构可以表示现在进行时的被动语态的含义。

　　The problem is under discussion now.= The problem is being discussed now.

　　The telephone is in use.= The telephone is being used.

　　Many new cars are on show. = Many new cars are being showed.

　　Your questions are under discussion.= Your questions are being discussed.

　　6. 有些表 “ 状态,　心理活动,　情感”等的动词,常用一般现在时的被动语态表示 “正在进行”。

　　e.g. You are wanted on the phone.

　　MP3 is becoming more and more popular. In other words, it is loved by more and more people.

　　表示一种经常性或习惯性的被动行为，常与always, forever, continually, constantly等词连用，往往带有赞扬、责备、厌烦及埋怨等感情色彩。e.g. Tom is always being praised by the teacher.

　　7、与情态动词连用，表示对现在正在发生的被动行为的推测。

　　e.g. (1) John is not here .He must be being interviewed

　　(2) ---Do you know what smith is doing ?

　　---He is ill. He may be being examined by the doctor.

　　注意：助动词am/ is/ are和being缺一不可并且不可以颠倒顺序。

　　希望以上内容可以帮助到对于英语语法有困惑的同学，想了解更多四六级备考课程、备考资讯，请点击文都网校四六级资讯站查询!

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