【正文】 used；第一空是過(guò)去分詞作后置定語(yǔ)，表示在很多領(lǐng)域被使用的人工智能，用used，故選A?？疾閯?dòng)詞過(guò)去分詞及被動(dòng)語(yǔ)態(tài)。watch sb doing sth，動(dòng)名詞做賓語(yǔ)的補(bǔ)足語(yǔ)，觀看某人正在做某事，根據(jù)句意，故選A考點(diǎn)：考查冠詞的用法?？键c(diǎn)：考查非謂語(yǔ)動(dòng)詞。get something done, 固定短語(yǔ)，做完某事?？键c(diǎn)：考查非謂語(yǔ)動(dòng)詞的用法。A項(xiàng)為不定式，雖表示主動(dòng)行為，但是該動(dòng)作發(fā)生在將來(lái)；C項(xiàng)為過(guò)去分詞，表示被動(dòng)關(guān)系，不符合題意；D項(xiàng)為第三人稱單數(shù)形式，只能作獨(dú)立謂語(yǔ)，而with后接復(fù)合結(jié)構(gòu)，不符合題意。18．B解析：B【解析】試題分析：句意為：這對(duì)夫婦飯后經(jīng)常帶著他們的寵物狗在公園里散步。to break動(dòng)詞不定式；breaking 是動(dòng)名詞；break動(dòng)詞原形，打破，摔斷；broken是break的過(guò)去分詞形式。故選C。考查動(dòng)詞不定式的否定形式。have chances to do ，是一個(gè)固定句型，故應(yīng)選C。15．C解析：C【解析】句意：對(duì)于那些從國(guó)外回來(lái)的人現(xiàn)在中國(guó)有很多好的機(jī)會(huì)來(lái)實(shí)現(xiàn)他們的夢(mèng)想。advise sb. to do ；put off推遲，與其前賓語(yǔ)you之間是主動(dòng)關(guān)系，動(dòng)詞不定式不用被動(dòng)式。所以我建議你推遲運(yùn)動(dòng)會(huì)。而本題 To save energy，turn off the lights when you leave the room. 表示關(guān)燈的目的，是為了節(jié)約能源。在平時(shí)的練習(xí)中，需要特別注意對(duì)語(yǔ)境的分析和句法結(jié)構(gòu)的分析。故選C。13．C解析：C【詳解】句意：為了節(jié)約能源，離開(kāi)房間之前關(guān)掉點(diǎn)燈。managed to help設(shè)法去救，表示做到了某事；tried to help努力去救，不知道結(jié)果如何；succeeded to help形式錯(cuò)誤；tried helping試圖去救，不知道結(jié)果。排除CD；這里是被邀請(qǐng)，用被動(dòng)語(yǔ)態(tài)，其結(jié)構(gòu)是be done的形式，排除A，根據(jù)題意，故選B。11．B解析：B【詳解】句意：我很榮幸被邀請(qǐng)?jiān)谶@里演講。動(dòng)詞短語(yǔ)show interest in sth表現(xiàn)出了對(duì)某事的興趣。10．D解析：D【詳解】句意：最近幾年，很多孩子被迫去做他們不感興趣的事。根據(jù)he loaded a new software to help ，因此用不定式作目的狀語(yǔ)?？疾椴欢ㄊ接梅?。根據(jù)題意，故選B。A. buying買，現(xiàn)在分詞；B. to buy買，動(dòng)詞不定式；C. bought買，過(guò)去式；D. buy買，原形?？疾楣潭ň湫虸t’s +形容詞+for sb. to do sth.：做某事對(duì)于某人來(lái)說(shuō)是什么樣子的；live：居住，不及物動(dòng)詞，住在某個(gè)地方是live in；故選B。本題就是第一種用法的被動(dòng)形式。故選C。 考查非謂語(yǔ)動(dòng)詞，having現(xiàn)在分詞形式；have原型；to have不定式；had過(guò)去式或過(guò)去分詞。觀察句子，這里應(yīng)該是疑問(wèn)詞加不定式“how to do sth”表示怎樣做什么，故選A。這確實(shí)幫助我養(yǎng)成了用水的好習(xí)慣。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(yǔ)，所以排除B、D；根據(jù)“She looks slimmer than before”她看起來(lái)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(lái)比以前苗條了。prefer to do A rather than do B為固定搭配，意為“寧愿做A事而不愿做B事”，符合句意，故選A。3．A解析：A【詳解】句意：當(dāng)我吃月餅時(shí)，我寧愿在吃之前把它切成小塊，而不是直接拿起來(lái)吃。such修飾名詞，其后緊跟冠詞；過(guò)去分詞作賓語(yǔ)補(bǔ)足語(yǔ)，和賓語(yǔ)myself存在被動(dòng)關(guān)系。2．C解析：C【詳解】句意：——為什么你那么大聲說(shuō)話？——因?yàn)槲蚁胱屪约郝?tīng)清楚。這里是how引導(dǎo)的，表示多么難，這里是it was difficult to do ，第二個(gè)空是動(dòng)詞不定式做主語(yǔ)。 to taste56．_______ trees is a longterm project. Let39。 taste C．help。 protected53．Dear friends, ________ your best and relaxing yourselves are two helpful ways to get a high grade in this exam. Wish you success.A．try B．trying C．to try D．tries54．The girl is often heard ________ in the music room. Her voice sounds beautiful.A．practice singing B．practiced singing C．to practice singing D．to practice sing55．— Baby, would you mind ________ me cook the fish?— Of course not. I can’t wait ________ it!A．help。 protectingC．be allowed to。 attending52．— Anyone shouldn’t _________ use fire outdoors. —Yeah, and we should pay attention to ________ our forests and grasslands.A．be allowed to。 attending C．watching。 typing43．_____ a GPS will make _______ easier for everyone to visit a strange place.A．Take, her B．Taking, that C．Taking, it D．Take, this44．The way we thought of ________ the environment proved to be very useful.A．to protect B．protecting C．protected D．protects45．The girl is often seen ____in the art room.A．practice drawing B．practised drawingC．to practice drawing D．practice to draw46．—What happened to Lucy? I saw her _______ in her seat just now.—She failed in the final exam. Let’s go to cheer her up.A．crying B．to cry C．cried D．to be crying47．（題文） . Shall we take a walk outside?– Sorry, I’m too busy ______ for the ing examA．prepare B．to prepareC．preparing D．with preparing48．You have to work very hard in your job, don’t you?Yes, but I don’t mind that. I _____ hard.A．used to work B．a(chǎn)m used to workC．a(chǎn)m used work D．a(chǎn)m used to working49．Tom’s decided to devote all he could ________ his English before going abroad.A．to improving B．have improvedC．to improve D．improve50．—Tom, have you ever read the book A Take of Two Cities written by Charles Dickens?—Yes, I finished ________ it last summer vacation.A．read B．reading C．to read D．reads51．—Did everyone attend the concert last night? —No, Emily preferred _____