【正文】 esearch paper fast, or we____________ it on time.A. don39。 bought23. —Where is your father?—He ________ New York. He________ there once before.A. has been to；has gone to B. has gone to；has been to C. has gone to；has been D. has been to；has gone24. —Are you going to the bank, Laura?—No, I ________ to the bank already.A. have been B. am C. was D. am going25. —How long have you ________?—Since 17 years ago.A. left this city B. got married C. bought the house D. lived in Jinan26. —Jeff, how long have you ________? —For about two months.A. bought the bike B. met your teacher C. arrived here D. had the toy car27. My plump cousin ________ a lot of weight since he went on a diet last year.A. lost B. has lost C. was losing D. had lost28. Tik Tok(抖音) _______ increasingly wele among people of all ages so far.A. had bee B. became C. has bee D. is being29. Online learning ________ very popular with students since the beginning for last year.A. has bee B. are being C. would bee D. had bee30. The new medicine they developed ________ many lives since it was put into use.A. is saving B. will save C. had saved D. has saved31. The living conditions in the countryside ________ greatly in recent years.A. improve B. will improve C. improved D. have improved32. A cold wave from the north ________ most areas of China in the past two weeks.A. sweeps B. is sweeping C. was sweeping D. has swept33. Tamdrin（丁真）,a 20yearold Tibetan, ________ a lot of attention since his photo was posted on the Internet.A. was attracting B. will attract C. has attracted D. attracts34. Many volunteers________a lot of help to the munity in the past ten years.A. offered B. had offered C. will offer D. have offered35. Jack _______ his own living since he was 7 years old, doing all kinds of jobs.A. makes B. has made C. had made D. made36. I _______ great progress in my study since you taught me your good learning method.A. have made B. had made C. made D. would make37. I ________ my desk, but now it’s in a mess again.A. tidy B. tidied C. have tidied D. will tidy38. Harry’s quality of life ________ a lot since the operation.A. improves B. has improved C. was improving D. will improve39. Judy Brown ______ as an English teacher in our school since five years ago.A. works B. will work C. worked D. has worked40. — Hello, may I speak to Mrs. Li , please?—Sorry, she isn39。根據(jù)“at 3 pm”及“It39。根據(jù)“next month”可知，從句要用一般將來(lái)時(shí)，結(jié)構(gòu)為will do，故選A。根據(jù)賓語(yǔ)從句的語(yǔ)序遵循“陳述語(yǔ)序”即“疑問(wèn)詞+主語(yǔ)+謂語(yǔ)”，排除C和D，根據(jù)主句“It depends on”可知，時(shí)態(tài)遵循“主現(xiàn)從需”原則，由“Shall we have a piic tomorrow?”可知，應(yīng)該用一般將來(lái)時(shí)表示未發(fā)生，排除B，故選A?？疾閯?dòng)詞時(shí)態(tài)，觀察句子，可知是if引導(dǎo)的條件狀語(yǔ)從句，遵循主將從先原則，即主句用一般將來(lái)時(shí)，從句用一般現(xiàn)在時(shí)，故選D。布萊恩特死于一場(chǎng)可怕的事故，真是太可惜了！——對(duì)。12. C【解析】句意：——媽媽?zhuān)隳芨嬖V我爸爸什么時(shí)間回來(lái)嗎？我昨天晚上夢(mèng)到了他。根據(jù)Wait a minute, please可知，將要幫對(duì)方查詢，應(yīng)該使用一般將來(lái)時(shí)，故選D。我們?nèi)P凰山露營(yíng)吧?！蚁胫览蚶驎?huì)不會(huì)來(lái)。如果再給他五分鐘，我想他會(huì)的?？疾闀r(shí)態(tài)?？疾閯?dòng)詞辨析及動(dòng)詞時(shí)態(tài)。根據(jù)“He… there once before”可知，此處指他曾經(jīng)去過(guò)那里，地點(diǎn)副詞there前不加任何介詞，所以第二個(gè)空填has been ，故選C。26. D【解析】句意：Jeff，你買(mǎi)這輛玩具車(chē)多久了？——大約2個(gè)月。28. C【解析】句意：到目前為止，抖音已經(jīng)越來(lái)越受到各個(gè)年齡段人們的歡迎。save挽救，根據(jù)后面的“since it was put into use”可知，時(shí)態(tài)是現(xiàn)在完成時(shí)，現(xiàn)在完成時(shí)的構(gòu)成：主語(yǔ)+have/has+動(dòng)詞過(guò)去分詞，主語(yǔ)“The new medicine”是第三人稱(chēng)單數(shù)，所以用has，故選D。根據(jù)空后從句“since his photo was posted on the Internet.”時(shí)態(tài)可知，主句應(yīng)用現(xiàn)在完成時(shí)?？疾闀r(shí)態(tài)。38. B【解析】句意：自從手術(shù)以后，哈里的生活質(zhì)量有了很大改善。故選D。根據(jù)句中的時(shí)間狀語(yǔ)“since 1978”可知，句子應(yīng)用現(xiàn)在完成時(shí)，構(gòu)成形式為have/has done；主語(yǔ)“China”是第三人稱(chēng)單數(shù)形式，助動(dòng)詞應(yīng)用has，make的過(guò)去分詞是made。43. C【解析】句意：令我們驚訝的是，自9月份以來(lái)，我們網(wǎng)站的訪問(wèn)量已經(jīng)增加了兩倍。根據(jù)“I called you last night”和“at that time”可知，句子要用過(guò)去進(jìn)行時(shí)，結(jié)構(gòu)為was/were doing，故選B。beat敲打；are beating現(xiàn)在進(jìn)行時(shí)；will beat一般將來(lái)時(shí)；were beating過(guò)去進(jìn)行時(shí)；根據(jù)“…so loudly that I heard nothing.”可知，此處表示我什么也聽(tīng)不見(jiàn)，當(dāng)時(shí)孩子們正在敲鼓；我什么也聽(tīng)不見(jiàn)，使用了一般過(guò)去時(shí)，所以孩子們正在敲鼓，使用過(guò)去進(jìn)行時(shí)。故選C。t see you對(duì)不起，我沒(méi)有看到你可知，當(dāng)時(shí)我正在畫(huà)一幅畫(huà)，表示過(guò)去某時(shí)正在做某事用過(guò)去進(jìn)行時(shí)。故選B。54. D【解析】句意：——你注意到一個(gè)穿綠衣服的女孩進(jìn)來(lái)了嗎？——沒(méi)，我沒(méi)有。故選C?？疾檫^(guò)去進(jìn)行時(shí)?？疾闀r(shí)態(tài)