特黄特色三级在线观看免费,看黄色片子免费,色综合久,欧美在线视频看看,高潮胡言乱语对白刺激国产,伊人网成人,中文字幕亚洲一碰就硬老熟妇

學(xué)習(xí)啦 > 優(yōu)秀作品專(zhuān)欄 > 英語(yǔ)學(xué)習(xí) >

英語(yǔ)動(dòng)詞be解析學(xué)習(xí)

時(shí)間: 家志1175 分享

  學(xué)習(xí)啦:Be動(dòng)詞雜英語(yǔ)里有著十分重要的地位,需要牢牢掌握,下面我們一起看看這篇《動(dòng)詞be解析》。

  Be動(dòng)詞一般現(xiàn)在時(shí)(一般現(xiàn)在時(shí)表示通常性、規(guī)律性、習(xí)慣性、真理性的狀態(tài)或者動(dòng)作發(fā)生有時(shí)間規(guī)律的一種狀態(tài))有三種形式,記住哦,只有三種形式。它們分別是:am,is,are.

  陳述句:

  The man is a science teacher.

  這個(gè)男子是一位科學(xué)教師。

  Mary's new dresses are colourful.

  瑪麗的新衣服色彩鮮艷。

  I have been there before.

  我以前去過(guò)那里。

  My mother is in the kitchen now.

  我媽媽現(xiàn)在在廚房里。

  疑問(wèn)句:

  Is the man a science teacher?

  Are Mary's new dresses colourful?

  Have I been there before?

  Is mother in the kitchen now?

  否定句:

  The man is not a science teacher.

  The man isn't a science teacher.

  They are not in the kitchen.

  They aren't in the kitchen.

  They're not in the kitchen.

  時(shí)態(tài)中的助動(dòng)詞be:

  Tony's maid is washing his new car.

  The children are playing in the field.

  Samuel was eating when I came in.

  We have been living here since 1959.

  被動(dòng)語(yǔ)態(tài)中的助動(dòng)詞be

  一般現(xiàn)在時(shí):am/is/are+done

  一般過(guò)去時(shí):was/were+done

  一般將來(lái)時(shí):will+be+done

  現(xiàn)在進(jìn)行時(shí):am/is/are+being+done

  過(guò)去進(jìn)行時(shí):was/were+being+done

  現(xiàn)在完成時(shí):have/has+been+done

  過(guò)去完成時(shí):had+been+done

  祈使句中的系動(dòng)詞be

  Don't be silly!

  Do be obedient!

  Be careful!

  Don't be a fool!

  簡(jiǎn)單總結(jié):

  動(dòng)詞be分為系動(dòng)詞be和助動(dòng)詞be兩種,系動(dòng)詞be是謂語(yǔ)的重要組成部分,助動(dòng)詞be則只起到形式的作用,由于主語(yǔ)和時(shí)態(tài)的要求,動(dòng)詞be要變成相應(yīng)的形式。

  公眾號(hào):英語(yǔ)語(yǔ)法教程

  本文為原創(chuàng)文章,版權(quán)歸作者所有,未經(jīng)授權(quán)不得轉(zhuǎn)載!——學(xué)習(xí)啦


3948382