2022年高考英語專題復(fù)習(xí) 動(dòng)詞的時(shí)態(tài)和語態(tài)練習(xí)

《2022年高考英語專題復(fù)習(xí) 動(dòng)詞的時(shí)態(tài)和語態(tài)練習(xí)》由會(huì)員分享，可在線閱讀，更多相關(guān)《2022年高考英語專題復(fù)習(xí) 動(dòng)詞的時(shí)態(tài)和語態(tài)練習(xí)（7頁珍藏版）》請(qǐng)?jiān)谘b配圖網(wǎng)上搜索。

1、2022年高考英語專題復(fù)習(xí) 動(dòng)詞的時(shí)態(tài)和語態(tài)練習(xí) 1．(xx·江蘇高考)The real reason why prices ________(be), and still are, too high is plex, and no short discussion can satisfactorily explain this problem. 2．(xx·湖南高考)As you go through this book, you ________(find)that each of the millions of people who lived through World War Ⅱ

2、 had a different experience. 3．(xx·湖南高考)He must have sensed that I ________(look)at him.He suddenly glanced at me and said quietly, “Why are you staring at me like that？” 4．(xx·湖南高考)I had a strong desire to reach in and play with the toy, but ________(hold)back thankfully by the shop window. 5．(x

3、x·北京高考)—Did you enjoy the party? —Yes.We ________(treat)well by our hosts. 6．(xx·北京高考)In the last few years, China ________(make)great achievements in environmental protection. 7．(xx·北京高考)—Did you have difficulty finding Ann's house? —Not really.She ________( give)us clear directions and we were

4、 able to find it easily. 8．(xx·北京高考)—Dr.Jackson is not in his office at the moment. —All right.I ________(call)him later. 9．(xx·浙江高考)Albert Einstein was born in 1879. As a child, few people guessed that he ________(go)be a famous scientist whose theories would change the world. 10．(xx·重慶高考)—Is P

5、eter ing? —No, he ________(change)his mind after a phone call at the last minute. 11．(xx·重慶高考)In my hometown, there is always a harvest supper for the farmers after all the wheat ________ (cut)． 12．(xx·陜西高考)Marty ________ (work)really hard on his book and he thinks he'll have finished it by Frida

6、y. 13．(xx·陜西高考)At college, Barack Obama didn't know that he ________(bee)the first black president of the United States of America. 14．(xx·四川高考)More expressways________(build)in Sichuan soon to promote the local economy. 15．(xx·天津高考)Jane can't attend the meeting at 3 o'clock this afternoon becaus

7、e she ________(teach)a class at that time. 16．(xx·天津高考)Despite the previous rounds of talks, no agreement ________ (reach)so far by the two sides. 17．(xx·安徽高考)Just as I got to the school gate, I realised I ________(leave)my book in the cafe. 18．(xx·安徽高考)It is reported that a space station _______

8、_(build)on the moon in years to e. 19．(xx·福建高考)To my delight, I ________ (choose)from hundreds of applicants to attend the opening ceremony. 20．(xx·福建高考)—Where is Peter? I can't find him anywhere. —He went to the library after breakfast and ________ (write)his essay there ever since. 21．(xx·湖南高考

9、)I wasn't able to hide my eagerness when I ________(ask), “What do you wish me to do now？” 22．(xx·大綱卷)Unless some extra money ________(find)，the theatre will close. 23．(xx·大綱卷)The reports went missing in xx and nobody ________(see) them since. 24．(xx·湖南高考)Since the time humankind started gardenin

10、g，we ______(try) to make our environment more beautiful. 25．(xx·四川高考)She ________(phone) someone，so I nodded to her and went away. 26．(xx·江西高考)—Tony，why are your eyes red? —I ________(cut) up peppers for the last five minutes. 27．(xx·北京高考)—Hi，let's go skating. —Sorry，I'm busy right now.I ______

11、__(fill) in an application to look for a new job. 28．(xx·重慶高考)James has just arrived，but I didn't know he ________(e) until yesterday. 29．(xx·福建高考)—Haven't seen you for ages！Where have you been? —I went to Ningxia and ________(stay) there for one year，teaching as a volunteer. 30．(xx·北京高考)—What t

12、ime is it? —I have no idea.But just a minute，I ________(check) it for you. 31．(xx·北京高考)I found the lecture hard to follow because it ________(start) when I arrived. 32．(xx·安徽高考)The twins，who ________(finish) their homework，were allowed to play badminton on the playground. 33．(xx·浙江高考)Sofia looke

13、d around at all the faces：she had the impression that she ________(see) most of the guests before. 34．(xx·陜西高考)During his stay in Xi'an，Jerry tried almost all the local foods his friends ________(remend)． 一年模擬試題精練 1．(xx·內(nèi)蒙古師大附中月考)In the early years of the 1980s，as the reform and opening－up policy

14、 ________(carry) out，our dream came true. 2．(xx·甘肅蘭州一中月考)The sellers' shouts could ________(hear) every now and then. 3．(xx·河南鄭州摸底)Last year our team went to Seattle，Washington in the USA.We ________(win) second place. 4．(xx·海南?？谀M)A boy on a bike ________ (catch) my attention.He was riding besid

15、e the bus and waving his arms. 5．(xx·黑龍江大慶一中段考二)I heard that Carl ________ (win) the position prize. 6．(xx·山西太原五中月考)A prehensive study ________(report) that of the nearly 3，000 cyclist－motorist crashes that occurred between 2000 and xx，about 20 percent were hit－and－runs. 7．(xx·吉林一中月考)For thousand

16、s of years，the festival ________(mark) by eating Zongzi and racing dragon boats in honour of Qu Yuan. 8．(xx·內(nèi)蒙古包鋼一中月考)I'm so sorry，but sometimes the bus can ________ (delay) by some problems. 9．(xx·海南中學(xué)月考)Now college graduates ________(encourage) to start their own business，which sounds really goo

17、d for us. 10．(xx·寧夏銀川一中月考)So far I ________(adopt) and taught children for over 35 years. 11．(xx·廣東揭陽一中、潮州金山中學(xué)聯(lián)考)So the questions must ________(deal) with carefully，the same way you would handle any other hot potato. 12．(xx·內(nèi)蒙古師大附中月考)As a child，I lived in a poor family...the worst impression is t

18、hat I ________ (feel) hungry all the time. 13．(xx·黑龍江雙鴨山一中月考)Sandy：What about his sister，Kate? Did she pass? Tom：Oh，yes.It seems she________(get) good marks. 14．(xx·河南洛陽一高月考)I think Chinese people choose chopsticks，rather than knives and forks，because Chinese people，under the influence of Confuci

19、anism，________(consider) knives and forks as symbolizing a type of violence traditionally. 15．(xx·遼寧錦州市質(zhì)量檢測(cè)一)He jumped out of the car，________(seize) a boy and pushed him up against the parked car. 16．(xx·河北邯鄲市一模)Simon：Right.And how many people are ing? Did you say about 8? Linda：Yes，they said 8

20、at first，but________(change) to 6 this morning. 17．(xx·山西太原五中模擬)He goes to a Buddhist monk for advice and expects to ________(tell) how to live a more simple life. 18．(xx·遼寧錦州市質(zhì)量檢測(cè)一)“He ________(hurt)，and he's too heavy for me”． 19．(xx·黑龍江大慶一中段考二)He ________ (work) hard at his lessons every eveni

21、ng for months.He wants to go to Oxford University next year. 20．(xx·黑龍江哈三中一模)If you ________(happen) meet a girl online who is intelligent，kind，honest，and you get a good feeling of her，won't you have the desire to get to know her in person? 21．(xx·山西太原五中模擬)There ________ (be) more than 100 million

22、 references to the word “tuhao” on social media since early September this year. 22．(xx·黑龍江哈三中二模)All the discoveries in human history have ________(make) as a result of curiosity. 23．(xx·甘肅嘉峪關(guān)市一中六模)China ________ (be) famous for tea production since ancient times. 24．(xx·廣東汕頭一模)When they ________

23、 (rescue)，they told how they had been abandoned by their captain，while he sailed to safety in a lifeboat. 25．(xx·寧夏銀川一中一模)Well，I ________ (walk) down to the basement in my house about three weeks ago when I slipped and bumped my head pretty hard on the steps. Section 5　動(dòng)詞的時(shí)態(tài)和語態(tài)【兩年高考真題演練】 1．were　[

24、句意：價(jià)格過去和現(xiàn)在仍然過高的原因是復(fù)雜的，沒有簡短的討論可以令人滿意地解釋這個(gè)問題。根據(jù)and still are可以推斷出空白處是對(duì)過去時(shí)態(tài)的考查。] 2．will find　[句意：在你瀏覽這本書時(shí)，你會(huì)發(fā)現(xiàn)經(jīng)歷二戰(zhàn)的數(shù)百萬人的經(jīng)歷各不相同。as引導(dǎo)時(shí)間狀語從句，意思是“當(dāng)……的時(shí)候”，在從句中使用的是一般現(xiàn)在時(shí)，所以主句使用一般將來時(shí)，即所謂“主將從現(xiàn)”，主句使用一般將來時(shí)，從句使用一般現(xiàn)在時(shí)。] 3．was looking　[句意：他一定是感到了我在看他。他突然瞥了我一眼，然后平靜地說：“為什么這樣盯著看我？” must have done是對(duì)過去情況的推測(cè)，that后面應(yīng)該使用

25、過去時(shí)，在根據(jù)后面“為什么這樣盯著看我？”所使用的時(shí)態(tài)為進(jìn)行時(shí)，可知此處為過去進(jìn)行時(shí)。] 4．was held　[句意：我有一種強(qiáng)烈的進(jìn)去玩玩具的沖動(dòng)，但是幸虧被櫥窗攔住了。前面had 是一般過去時(shí)，此處是并列謂語，也應(yīng)該使用一般過去時(shí)；hold back和主語I之間是被動(dòng)關(guān)系，所以使用被動(dòng)語態(tài)。] 5．were treated　[句意：——你們聚會(huì)玩得快樂嗎？——是的，主人招待我們很好。根據(jù)上一句中的did可知用一般過去時(shí)；且we和treated是動(dòng)賓關(guān)系，用被動(dòng)語態(tài)。故該空用一般過去時(shí)的被動(dòng)語態(tài)。 ] 6．has made　[句意：在最近的幾年里，中國在環(huán)境保護(hù)方面已經(jīng)取得了巨大的

26、成就。由“in the last few years”可知，此處應(yīng)用現(xiàn)在完成時(shí)。] 7．had given　[句意：——你們找到安的家有困難嗎？——真的沒有，她已經(jīng)給了我們清晰的說明，我們能夠很容易地找到它。由句意可知give這一動(dòng)作發(fā)生在“我們找安的家之前”，故用過去完成時(shí)。] 8．will call　[句意：——Dr.Jackson現(xiàn)在不在他的辦公室里?！玫?，過一會(huì)兒我再給他打電話。由句中的later可知此處要用一般將來時(shí)。] 9．was going to　[句意：愛因斯坦出生于1879年。小時(shí)候，幾乎沒有人想到他會(huì)成為一個(gè)其理論將會(huì)改變世界的科學(xué)家。根據(jù)語境可知，此處要用過去將

27、來時(shí)。] 10．changed　[句意：——彼特要來嗎？——不，當(dāng)接到一個(gè)電話后，他最后時(shí)刻改變了主意。句中的after a phone call at the last minute 表明動(dòng)作發(fā)生在過去，故用一般過去時(shí)。] 11．has been cut　[句意：在我的家鄉(xiāng)，當(dāng)所有的小麥被收割完后，總有舉行一個(gè)豐收晚宴。表示動(dòng)作在前，要用完成時(shí)，且the wheat與動(dòng)詞cut之間為動(dòng)賓語關(guān)系，故要用被動(dòng)語態(tài)。after引導(dǎo)時(shí)間狀語從句，在條件或時(shí)間狀語從句中要用現(xiàn)在完成時(shí)代替將來完成時(shí)。] 12．has been working　[句意：馬蒂一直以來真的很努力地寫這本書，他認(rèn)為他到星

28、期五就能寫完了。他的書還沒有寫完，現(xiàn)在正在努力寫，用現(xiàn)在完成進(jìn)行時(shí)表示過去到現(xiàn)在一直持續(xù)的動(dòng)作，并且很有可能還要持續(xù)下去。] 13．was to bee/would bee　[句意：大學(xué)的時(shí)候，奧巴馬不知道他會(huì)成為美國的第一位黑人總統(tǒng)。表示“注定成為”要用be to do；主句是一般過去時(shí)，所以從句要用過去將來時(shí)。] 14．will be built　[句意：四川將建設(shè)更多的高速公路以促進(jìn)當(dāng)?shù)氐慕?jīng)濟(jì)(發(fā)展)。根據(jù)時(shí)間狀語soon可知，此空為將來時(shí)；主語expressways和動(dòng)詞build之間為動(dòng)賓關(guān)系，故要用一般將來時(shí)的被動(dòng)形式。] 15．will be teaching　[句意：瓊不

29、能參加今天下午3點(diǎn)鐘的會(huì)議，因?yàn)槟菚r(shí)她將在上課。時(shí)間狀語at that time指的是前面的at 3 o'clock this afternoon，表示將來某個(gè)時(shí)刻正在做某事，要用將來進(jìn)行時(shí)。] 16．has been reached　[句意：盡管之前進(jìn)行了幾次談判，但到目前為止雙方?jīng)]達(dá)成任何協(xié)議?？疾楝F(xiàn)在完成時(shí)的被動(dòng)語態(tài)。根據(jù)時(shí)間狀語so far可知此處要用現(xiàn)在完成時(shí)，主語agreement與動(dòng)詞reach之間為動(dòng)賓關(guān)系，故要用現(xiàn)在完成時(shí)的被動(dòng)形式。] 17．had left　[句意：我剛到學(xué)校門口，就意識(shí)到我把書落在咖啡廳了。realized后省略了that，這里是一個(gè)賓語從句，從句時(shí)

30、態(tài)與主句保持一致，“落下”的動(dòng)作發(fā)生在“意識(shí)到”之前，故要用過去完成時(shí)。] 18．will be built　[句意：據(jù)報(bào)道，未來幾年將在月球上建造空間站。根據(jù)in years to e可知應(yīng)為將來時(shí)態(tài)，再者station和build之間構(gòu)成被動(dòng)關(guān)系，故用將來時(shí)的被動(dòng)語態(tài)。] 19．was chosen　[句意：令我高興的是，從好幾百人中我被選出參加這次開幕式。表示發(fā)生過的動(dòng)作要用一般過去時(shí)，“我被選中”應(yīng)該用被動(dòng)語態(tài)，故答案為一般過去時(shí)的被動(dòng)形式。] 20．has been writing　[句意：——彼得去哪兒了？我到處找不到他?！顼埡笕チ藞D書館，自那以來，他一直在那里寫論文。

31、根據(jù)句意，可以看出早飯之后，彼得一直在持續(xù)寫的動(dòng)作，很有可能現(xiàn)在還在持續(xù)，故用現(xiàn)在完成進(jìn)行時(shí)。] 21．a(chǎn)sked　[句意：在我問“現(xiàn)在你想讓我干什么？”時(shí)，我無法掩飾自己的迫切心情。從句中的時(shí)態(tài)應(yīng)該和主句中的時(shí)態(tài)保持一致，而不是和直接引語中的時(shí)態(tài)保持一致。] 22．is found　[句意：除非一些額外的錢被找到，否則劇院就會(huì)停業(yè)。主語是money，所以要使用被動(dòng)語態(tài)，而從主句的情態(tài)動(dòng)詞will 的使用上來看，從句也要用一般將來時(shí)態(tài)，但在條件狀語從句中要使用一般現(xiàn)在時(shí)態(tài)代替一般將來時(shí)態(tài)，所以用is found。] 23．has seen　[句意：這些報(bào)告在xx年后就不見了，而且自那以后

32、就沒有人看見過它們。根據(jù)since可知，要用現(xiàn)在完成時(shí)態(tài)，所以用has seen。] 24．have been trying　[句意：自從人類開始從事園藝工作以來，我們就一直在努力使我們的環(huán)境更美。根據(jù)Since the time humankind started gardening以及try to make our environment more beautiful 這一動(dòng)作現(xiàn)在還在進(jìn)行可知，設(shè)空處需用現(xiàn)在完成進(jìn)行時(shí)。] 25．was phoning　[句意：她當(dāng)時(shí)正在給某人打電話，所以我對(duì)她點(diǎn)點(diǎn)頭走開了。根據(jù)句意可知該空表示過去某一時(shí)間正在發(fā)生的動(dòng)作，所以要用過去進(jìn)行時(shí)。] 26

33、．have been cutting　[句意：——托尼，為什么你的眼睛紅了？——過去的五分鐘里我一直都在剁辣椒。根據(jù)本題中的for the last five minutes可以判斷動(dòng)作從過去開始，持續(xù)到現(xiàn)在，并且可能現(xiàn)在還在進(jìn)行，故用現(xiàn)在完成進(jìn)行時(shí)。] 27．a(chǎn)m filling　[句意：你好，讓我們?nèi)セ伞?duì)不起，我現(xiàn)在正忙著呢。我正在填寫一份找新工作的申請(qǐng)表。題中所給的時(shí)間狀語right now 說明現(xiàn)在正在忙，所以用現(xiàn)在進(jìn)行時(shí)與這個(gè)時(shí)間狀語搭配是最佳的，答案是am filling。] 28．was ing/would e　[句意：詹姆斯剛到，但是直到昨天我才知道他會(huì)來。主句的謂語

34、動(dòng)詞是一般過去時(shí)，從句的時(shí)態(tài)應(yīng)用過去的某種時(shí)態(tài)，根據(jù)句意可知該空表示過去將要發(fā)生的動(dòng)作，所以要用過去將來時(shí)。] 29．stayed　[句意：——好長時(shí)間沒見到你了！你去哪兒了？——我去寧夏支教了一年。答句由and 連接兩個(gè)并列的謂語動(dòng)詞，根據(jù)went及句意可知，此處表示的動(dòng)作發(fā)生在過去，“待”這個(gè)動(dòng)作與went這個(gè)動(dòng)作幾乎同時(shí)發(fā)生，故用一般過去時(shí)態(tài)。] 30．will check　[句意：現(xiàn)在幾點(diǎn)了？我不知道。但是等一下，我將給你查一下。表示馬上就會(huì)做某事，要用“will＋動(dòng)詞原形”。] 31．had started　[句意：我發(fā)現(xiàn)這次的講座難于理解，因?yàn)樗谖业竭_(dá)時(shí)已經(jīng)開始了?！暗竭_(dá)”

35、發(fā)生在過去，而“開始”發(fā)生在“到達(dá)”之前，是過去的過去，所以使用過去完成時(shí)態(tài)。] 32．had finished　[句意：這對(duì)雙胞胎已經(jīng)完成家庭作業(yè)了，他們被允許在操場上打羽毛球。根據(jù)題干可知“被允許在操場上打羽毛球”這個(gè)動(dòng)作發(fā)生在過去，而“完成家庭作業(yè)”這個(gè)動(dòng)作發(fā)生在“被允許在操場上打羽毛球”這個(gè)動(dòng)作之前，是“過去的過去”，故用過去完成時(shí)。] 33．had seen　[句意：Sofia看了看四周所有的人。她印象中她以前見過這些客人中的大多數(shù)。設(shè)空處所缺的動(dòng)詞表示的動(dòng)作發(fā)生在主句謂語動(dòng)詞動(dòng)作之前，同時(shí)有時(shí)間狀語before，故用過去完成時(shí)。] 34．had remended　[句意：Je

36、rry在西安逗留期間，他幾乎嘗遍了朋友推薦的所有的當(dāng)?shù)厥澄铩Ｓ蓆ried可知，定語從句要用相應(yīng)的過去時(shí)態(tài)；“他的朋友推薦”這個(gè)動(dòng)作發(fā)生在tried這個(gè)動(dòng)作之前，即“過去的過去”，故用過去完成時(shí)。] 35．would buy　[這里是表示過去將來時(shí)態(tài)，那么對(duì)應(yīng)的主句應(yīng)該采用“would＋動(dòng)詞原形”。] 【一年模擬試題精練】 1．was carried　[根據(jù) In the early years of the 1980s可知要用過去時(shí)態(tài)，而且此處表示被動(dòng)意義。] 2．be heard　[叫賣的聲音能夠被聽到。此處為被動(dòng)語態(tài)。] 3．won　[根據(jù)Last year可知此處陳述過去的事實(shí)

37、，故用一般過去時(shí)。] 4．caught　[根據(jù)后面的He was riding可知此處是講述過去發(fā)生的事情，應(yīng)該用一般過去時(shí)。] 5．had won　[我聽說Carl得了作文一等獎(jiǎng)。謂語動(dòng)詞heard為過去時(shí)，表示“過去的過去的動(dòng)作”，要用過去完成時(shí)。] 6．reported　[一個(gè)調(diào)查報(bào)道說，在2000到xx年至少發(fā)生了3 000起事故，百分之二十的逃逸率。根據(jù)后面的occurred可知此處要用一般過去時(shí)。] 7．has been marked　[由時(shí)間狀語for thousands of years可知，謂語動(dòng)詞要用現(xiàn)在完成時(shí)，表示端午節(jié)一直以來都以吃粽子和賽龍舟的方式進(jìn)行慶祝。]

38、 8．be delayed　[the bus和delay之間是被動(dòng)關(guān)系，故用被動(dòng)語態(tài)。] 9．a(chǎn)re being encouraged　[現(xiàn)在大學(xué)畢業(yè)生正在被鼓勵(lì)自主創(chuàng)業(yè)，對(duì)我們來說這聽起來不錯(cuò)。根據(jù)時(shí)間狀語now可知是正在進(jìn)行時(shí)，學(xué)生與鼓勵(lì)之間是被動(dòng)關(guān)系，故用現(xiàn)在進(jìn)行時(shí)的被動(dòng)語態(tài)。] 10．have adopted　[根據(jù)時(shí)間狀語so far“到目前為止”可知，該狀語要與現(xiàn)在完成時(shí)連用。] 11．be dealt　[主語questions和動(dòng)詞deal with之間是被動(dòng)關(guān)系。] 12．was feeling　[根據(jù)時(shí)間狀語all the time 可知此處要用進(jìn)行時(shí)態(tài)，表示“一直

39、”，這里是過去的事情，所以用過去進(jìn)行時(shí)。] 13．got　[答句意為“好象她得了高分”。發(fā)生在過去的事要用一般過去時(shí)。] 14．have considered　[中國人在儒家思想的影響下，傳統(tǒng)地認(rèn)為刀和叉是暴力的象征。此處表示對(duì)現(xiàn)在造成的影響和結(jié)果，故要用現(xiàn)在完成時(shí)。] 15．seized　[他從汽車?yán)锩嫣顺鰜?，抓住一個(gè)男孩。和jumped，pushed構(gòu)成并列謂語，故要用一般過去時(shí)。] 16．changed　[他們一開始說是8個(gè)人，但是后來改成了6個(gè)。根據(jù)時(shí)間狀語this morning可知此處要用一般過去時(shí)。] 17．be told　[此人到廟里拜見高僧尋求指點(diǎn)，期望被告知如何

40、過更簡樸的生活。expect sb to do sth 期望某人做某事，因?yàn)閔e和tell之間為被動(dòng)關(guān)系，故要用be told。] 18．is hurt　[他受傷了，對(duì)我來說他太重了。he和動(dòng)詞hurt之間是被動(dòng)關(guān)系，且說的是客觀事實(shí)，故要用一般現(xiàn)在時(shí)的被動(dòng)語態(tài)形式is hurt。] 19．has been working　[這幾個(gè)月他一直在努力學(xué)習(xí)。用現(xiàn)在完成進(jìn)行時(shí)表示最近一直在做的事情。] 20．happen to　[條件狀語從句要用一般現(xiàn)在時(shí)表將來，happen to do sth碰巧做某事。] 21．have been　[九月份上旬以來，“土豪”一詞在中國社交網(wǎng)絡(luò)上出現(xiàn)了1億多

41、次。和時(shí)間狀語since early September this year 連用，要用現(xiàn)在完成時(shí)。] 22．been made　[the discoveries和動(dòng)詞make之間為動(dòng)賓關(guān)系，空格前的have表明句子用現(xiàn)在完成時(shí)，故要用現(xiàn)在完成時(shí)的被動(dòng)語態(tài)。] 23．has been　[根據(jù)時(shí)間狀語since ancient times可知，表示自過去某一時(shí)刻到現(xiàn)在這段時(shí)間的經(jīng)歷，要用現(xiàn)在完成時(shí)。] 24．were rescued　[they和動(dòng)詞rescue之間為被動(dòng)關(guān)系，再根據(jù)主句時(shí)態(tài)可知，此處要用一般過去時(shí)的被動(dòng)形式。] 25．was walking　[此處表示過去正在進(jìn)行的動(dòng)作，構(gòu)成be doing...when...結(jié)構(gòu)。]