【正文】 解析：B【詳解】句意：安靜點。——好的，媽媽。我正用著呢。face動詞原形；faces第三人稱單數(shù)；is facing現(xiàn)在進行時，主語為單數(shù)形式；are facing現(xiàn)在進行解析：D【詳解】句意：目前，南蘇丹的許多兒童正面臨著饑餓的問題。真的很臟。她臉上掛著燦爛的笑容。34．B【詳解】句意：——我找不到大衛(wèi)，他在哪兒？——他在家準備明天的比賽。33．C【詳解】句意：——尼克在哪里？——他正在學(xué)校上課。32．D【詳解】句意：——Tom，你的姐姐在做什么？——她正在書房里做她的家庭作業(yè)。31．B【詳解】句意：——瑪麗，我可以用你的ipad一個小時嗎？——對不起。我正在打電話。我稍后給你。表示現(xiàn)在正在做某事，用現(xiàn)在進行時is having 故選C。故選C?！炷模√ｋU了。25．A【詳解】句意：——你覺得你的公司怎么樣？——有點擔(dān)心。故選A。你能幫我一下嗎？——等一下。工人們正在修路。我在看姚明的比賽。我在修我的車。考查動詞時態(tài)。她正在圖書館看書。s dad?”可知，答語“他在澆花”應(yīng)是現(xiàn)在進行時。wait表一般現(xiàn)在時；am waiting表現(xiàn)在進行時；has waited表現(xiàn)在完成時；waited表一般過去時。16．B【詳解】句意：——媽媽，現(xiàn)在很晚了。結(jié)構(gòu)為：主語+will/shall+動詞原形、主語+am/is/are+動名詞?？疾闀r態(tài)。wear穿；根據(jù)“I’ll have it changed immediately解析：B【詳解】句意：——Lena，我想今天早上你很匆忙。根據(jù)答語“Sorry, I… on it.”的語境可推斷出，動作正在進行，應(yīng)用現(xiàn)在進行時，構(gòu)成形式為be do解析：D【詳解】句意：——我可以用你的電腦嗎？——對不起，我正在用它工作。我在上網(wǎng)課?！獩]問題。考查動詞時態(tài)。8．D【詳解】句意：我不能把我的英語書借給你，因為這些天我在用它。根據(jù)“now”可知要用現(xiàn)在進行時，其結(jié)構(gòu)為be doing。6．C【詳解】句意：我現(xiàn)在必須離開了，我哥哥正在外面等我。根據(jù)前面的“One moment!”可知，判斷設(shè)空處的動作“發(fā)送電子郵件”在說話時刻正在進行著，所以用解析：A【詳解】句意：——你好！我可以和湯姆講話嗎？——等一下，他正在發(fā)電子郵件。3．C【詳解】句意：動物園管理員很擔(dān)心，因為游客數(shù)量越來越少?？疾閯釉~時態(tài)。s not at home. She___________in the library.A．read B．reads C．is reading D．was reading19．—Where is mum？ —She________in the kitchen．A．cooks B．is cooking C．will cook D．cooked20．—Tom, please give me a hand in moving the piano. —Sorry. I ________ my car.A．repair B．repaired C．a(chǎn)m repairing D．have repaired21．—Ethan, let’s go to play basketball, shall we?—Sorry, I can’t. I ________Yao Ming’s game. Would you mind going later?A．watch B．have watched C．a(chǎn)m watching D．was watching22．You had better not go this way. The workers _________ the road.A．have repaired B．a(chǎn)re repairing C．repaired D．will repair23．— Mom, I’m busy making the bed. Can you give me a hand? — Wait a moment. I ________ the floor.A．a(chǎn)m cleaning B．will clean C．was cleaning D．have cleaned24．— Helen, how was your English petition on Monday?— I have no idea, I _________ for the result. I was told it would e out in two days.A．was waiting B．waited C．will wait D．a(chǎn)m waiting25．—How do you find your pany?—A little worried. We ________ ground as a leader in the field of IT with the others speeding up development.A．a(chǎn)re losing B．were losing C．lost D．have lost26．—Look out! Something ________ down from the tree.—Dear me! It’s too dangerous.A．falls B．fell C．is falling D．was falling27．—Where’s Kelly, Mum?—She ________ a poster for the munity in her bedroom.A．makes B．will make C．made D．is making28．— May I speak to Mr. Brown?— I am sorry. He ________ an important meeting in his office now.A．has B．had C．is having D．will have29．—Jack, can you lend me your camera?—Sorry, I________ it. I will give it to you later.A．used B．a(chǎn)m using C．have used D．was using30．— Dad, I can’t work out this math problem. Can you give me a hand?— Wait a moment. I ________ on the phone.A．a(chǎn)m talking B．will talk C．was talking D．have talked31．—Mary, may I use your ipad for an hour?—Sorry. I ________ on it.A．work B．a(chǎn)m working C．have worked D．worked32．— Tom, what’s your sister doing?— She ________ her homework in the study.A．does B