【正文】 ，來阻止廢水流入河里。我們應(yīng)該盡我們所能防止校車事故的發(fā)生。19．A解析：A【解析】句意：——為了保證學(xué)生在上學(xué)途中的安全，我們采取了更多的行動(dòng)。第二空表示目的，故用動(dòng)詞不定式to live。18．C解析：C【解析】句意：我的叔叔為了快樂的生活，下決心貢獻(xiàn)他的一生來阻止污染。advise sb not to do sth建議某人不要做某事，故第二空用not to drive。有建議嗎？——只有半小時(shí)的步行路程，我建議你不要開車去。故選D。live 居住，是一個(gè)動(dòng)詞。但是自從我十年前搬到這里，我就已經(jīng)習(xí)慣了住在這里。故選C。stop the car停車；have a rest休息。15．C解析：C【詳解】句意：我累了，所以停下車休息了一會(huì)兒?？疾榉侵^語動(dòng)詞。故選D。在主動(dòng)語態(tài)中，make，let，hear，see，watch，notice 等詞,其后跟省略to的動(dòng)詞不定式(動(dòng)詞原形)，在變?yōu)楸粍?dòng)語態(tài)時(shí),必須還原動(dòng)詞不定式符號(hào)to，be made to do sth被迫去做某事。根據(jù)題干可知，這里是用to引導(dǎo)的不定式短語來表目的，故選B。12．B解析：B【詳解】句意：科學(xué)家應(yīng)該做些什么來防止這種病毒擴(kuò)散到更廣泛的地區(qū)。根據(jù)句子結(jié)構(gòu)可知，第一個(gè)空是賓語從句，結(jié)合句意可知，這里表示“為什么沒有贏過任何比賽”；第二個(gè)空后使用了短語do with，應(yīng)與what搭配，故選D。本題考查make sb. do ，make后面直接用動(dòng)詞原形的形式，故選C.11．D解析：D【詳解】句意：全國(guó)的粉絲都在談?wù)撨@個(gè)足球隊(duì)為什么從來沒有贏過任何比賽以及怎樣應(yīng)對(duì)它。他的笑話總是能讓我們大笑?？疾榉侵^語動(dòng)詞，觀察句子，考查的是“ask sb not to do sth 讓某人不要做某事”，本題中was asked用于被動(dòng)語態(tài)，根據(jù)句意but was asked by the police not to“park his car near the roadside”，不定式中重復(fù)的部分可以省略，但是要保留到to，故選C。根據(jù)上文“為什么學(xué)生們需要每天閱讀”可知，此處應(yīng)用動(dòng)詞不定式做目的狀語，故選A?？疾閯?dòng)詞不定式。to save money為了省錢；saving money省錢；to lose weight為了減肥；losing weight減肥；判斷空格填不定式當(dāng)句子的目的狀語，所以排除B、D；根據(jù)“She looks slimmer than before”她看起來比以前苗條了，可知空格指為了減肥，所以排除A；故選C。她看起來比以前苗條了。故選A?？疾榉侵^語動(dòng)詞。故選D。have sth. done“使某物被做”，首空的賓語是it，指iPad，與動(dòng)詞repair是邏輯上的動(dòng)賓關(guān)系，即“被修理”，用過去分詞。——為什么不讓王叔叔修理？ 如果他不能的話，沒有人可以。5．D解析：D【詳解】句意：——我的iPad出問題了。stop to do “停下來去做某事”，stop doing sth. 意為“停下正在做的事”；由下文的句子Because he is too busy ________ a dying patient in the operation room. 可知，醫(yī)生還沒有吃午飯，因此是問為什么這名醫(yī)生不停下來吃午飯呢？故用動(dòng)詞不定式，排除C/D；be busy doing sth “忙于做某事”。tell sb. (not) to do （不要）做某事，固定搭配，動(dòng)詞不定式作賓語補(bǔ)足語；故選D。否則，我會(huì)對(duì)學(xué)習(xí)失去興趣。故用被動(dòng)語態(tài)，選D。根據(jù)題意，博物館展出了什么？——一些青海玉樹的孩子們照的相片。finish to do ，固定短語；根據(jù)句意語境，可知選B。 protecting D．a(chǎn)llow to。 protect B．a(chǎn)llow to。 tie D．wearing。 tie B．wear。 than D．to read。 in B．reading。 talking。 talking C．so。 spending54．The two old friends were ____ busy ____ with each other that they forgot the time.Yes. They hadn’t met for over ten years, so they kept talking the whole night.A．too。 spendC．work。 Nothing44．Having never worked in the fields, Yuan Longping’s mom moved to Anjiang town ________ her son’s family and research.A．support B．to support C．supporting D．supported45．When I am in a bad mood, I prefer _______ around the lake _______ myself up.A．walking；to cheering B．to walk；to cheer C．walk；than cheer D．walking；than cheering46．Chinese spacecraft Tianwen I successfully landed on the Martian surface, ________ a historic acplishment in China’s space development.A．marking B．to mark C．marked D．marks47．Paul is really considering________himself to________ those children in the earthquakehit area.A．to devote, teaching B．devoting, teaching C．devoting, teach D．to devote, teach48．In spring, a mask can be helpful if flowers make your nose unfortable.A．wear B．wore C．wearing D．worn49．Thousands of young people spend hours ______ Wechat moments of their friends every day.A．to check B．checking C．check D．checks50．—Excuse me, can you explain the reason to me again?—Sorry, I know what I want to say but I have difficulty ______ myself clearly.A．express B．to express C．expressing D．to be expressed51．—Do you have any plans for the holiday?—Yes, I’m planning to travel to Jiuzhaigou. I’m looking forward to ________ the colourful lakes and amazing waterfalls.A．see B．seeing C．sees D．saw52．_____ a GPS will make _______ easier for everyone to visit a strange place.A．Take, her B．Taking, that C．Taking, it D．Take, this53．We should encourage our students _____ hard instead of ____ too much time playing games.A．work。 None C．solving。 go43．—How much difficulty did you have ________ this problem?—________. It’s quite easy.A．to solve。 to go C．staying。 as good as41．My puter doesn’t work. I decide to have it ______.A．repair B．repaired C．to repair D．repairing42．I would rather spend time ______ at home than ______ out with you.A．staying。 as well asC．Compared。 to fill39．This food is cooked by a cook _____ Victor.A．call B．calls C．called D．calling40．________with his flat, mine looks__________ new.A．Compared。 fill