廣西戴氏教育 來源：互聯(lián)網(wǎng) 時(shí)間:2021-04-06 23:57:12 點(diǎn)擊：3次
01 概念
表示正在發(fā)生的事情或動(dòng)作，常和now，look，listen連用。
eg：We are listening to music now. 我們現(xiàn)在正在聽音樂。
Listen! He is playing the piano. 聽!他正在彈鋼琴。
02 結(jié)構(gòu)
1.be + 動(dòng)詞現(xiàn)在分詞(即：動(dòng)詞-ing形式)，be + doing 是一個(gè)整體，不能分開。
2.be 隨著主語的變化而變化，doing的變化規(guī)則根據(jù)現(xiàn)在分詞的變化規(guī)律來定。
03 動(dòng)詞現(xiàn)在分詞的構(gòu)成規(guī)律
1.一般情況下,在動(dòng)詞原形后直接加-ing;
eg：work→working do→doing play→playing
2.以不發(fā)音字母e結(jié)尾的動(dòng)詞，先去掉e，再加-ing;
eg：dance→dancing come→coming
3.在重讀閉音節(jié)(即：輔音+元音+輔音)的動(dòng)詞中，要先雙寫末尾的輔音字母，再加-ing;
eg：get→getting shop→shopping
run→running swim→swimming
4.以 ie 結(jié)尾的重讀閉音節(jié)詞，將ie改成y再加ing。
eg：lie→lying die→dying
04 現(xiàn)在進(jìn)行時(shí)的各種句式變化
1.否定句
方法：直接在be的后面加not。
eg： They are running. →They are not running.
2.一般疑問句
方法：直接把be放在主語的前面，其余位置不變。
eg：：They are running. →Are they runnin?
3.特殊疑問句
方法：如果就劃線部分提問事情或動(dòng)作時(shí)，用What…doing?
eg：They are swimming in the sea now.
→What are they doing in the sea now?
你學(xué)會(huì)了嗎?一起來測試一下吧啊!#p#副標(biāo)題#e#
現(xiàn)在進(jìn)行時(shí)態(tài)練習(xí)
( )1. —What are you doing now?
—We are .
A. watching TV B. watch TV
C. watches TV D. to watch TV
( )2. Look! The little boy in the rain.
A. jumps B. run C. is running D. runs
( )3. The children are on the playground.
A. playing B. play C. sleeping D. plays
( )4. We an English class now.
A. has B. have C. is having D. are having
( )5. Look! Emma with her sister.
A. is swimming B. swims
C. is swiming D. are swimming
( )6. — the girls dancing?
—No, they . They are reading books.
A. is; aren’t B. are; aren’t
C. Are; aren’t D. Are; are
( )7. — ?
—They are playing basketball.
A. What are they doing
B. Who are they
C. How old are they
D. Where are they
( )8. Listen! Emma .
A. sleeps B. is singing
C. swims D. is running
( )9. Spring is . There are greens trees and beautiful flowers.
A. coming B. going C. comeing D. comes
( )10. — Tom with a toy car now?
—No, he isn’t. He is playing piano.
A. Do; plays B. Is; play
C. Is; playing D. Does; play
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