【正文】 4．D【詳解】句意：聽！有人正在旁邊的房間里唱歌。根據(jù)題干中“Where is he?”可知要回答現(xiàn)在在哪里，用現(xiàn)在進(jìn)行時表示“正在圖書館學(xué)習(xí)”，其結(jié)構(gòu)為be doing；主語“he”是第三人稱單數(shù)，be動詞用is。他在哪里？——哦，他在圖書館學(xué)習(xí)。考查現(xiàn)在進(jìn)行時。13．C【詳解】句意：——我在教室里找不到邁克了。wear穿；根據(jù)“I’ll have it changed immediately”可知在說話的時候“毛衣穿反”這個動作正在進(jìn)行，用現(xiàn)在進(jìn)行時，結(jié)構(gòu)是：am/is/are + doing；主語是“You”，be動詞用are。——哦，天吶！我馬上把它換過來。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?！?，天吶！我馬上把它換過來。12．B【詳解】句意：——Lena，我想今天早上你很匆忙。presents動詞第三人稱單數(shù)形式；presented表一般過去時；has presented表現(xiàn)在完成時；is presenting表現(xiàn)在進(jìn)行時。 ——對此我很抱歉?？疾楝F(xiàn)在進(jìn)行時。11．D【詳解】句意：——噓，別出聲！史密斯太太正在演播室里播報(bào)最新消息?？疾闀r態(tài)。你哥哥正在手機(jī)上錄音?？疾闀r態(tài)。你哥哥正在手機(jī)上錄音。故選C。考查現(xiàn)在進(jìn)行時的用法?？疾楝F(xiàn)在進(jìn)行時的用法。故選B。 考查現(xiàn)在進(jìn)行時。 考查現(xiàn)在進(jìn)行時。故選A?？疾闀r態(tài)?？疾闀r態(tài)。故填B?？疾閯釉~時態(tài)。根據(jù)前句“The noise es from the boys.”語境可推知，后句中動作正在進(jìn)行，應(yīng)用現(xiàn)在進(jìn)行時，構(gòu)成形式解析：B【詳解】句意：噪音來自那群男孩。他們正在開派對。故選C?？疾闀r態(tài)辨析。故選C?？疾闀r態(tài)辨析。故選C?？疾閯釉~時態(tài)。根據(jù)前句“Not now”語境可知，后句的動作正在進(jìn)行，應(yīng)用現(xiàn)在進(jìn)行時，構(gòu)成解析：C【詳解】句意：——去看電影怎么樣？有部叫《嗨，媽媽》的新電影?！F(xiàn)在不行，我在幫我弟弟托尼學(xué)英語。故選A?？疾楝F(xiàn)在進(jìn)行時的用法?？疾楝F(xiàn)在進(jìn)行時的用法。故選B。think about思考，一般現(xiàn)在時；am thinking about現(xiàn)在進(jìn)行時；was thinking about過去進(jìn)行時；thought about一般過去時。think about思考，一般現(xiàn)在時；am thinking about現(xiàn)在進(jìn)行時；was th解析：B【詳解】句意：——嘿！你差點(diǎn)撞到樹了！怎么了？——對不起，我在想我的家鄉(xiāng)之旅。2．B【詳解】句意：——嘿！你差點(diǎn)撞到樹了！怎么了？——對不起，我在想我的家鄉(xiāng)之旅。根據(jù)答語“Sorry, I… on it.”的語境可推斷出，動作正在進(jìn)行，應(yīng)用現(xiàn)在進(jìn)行時，構(gòu)成形式為be doing；主語“I”是第一人稱單數(shù)形式，be用am，work的現(xiàn)在分詞是working。根據(jù)答語“Sorry, I… on it.”的語境可推斷出，動作正在進(jìn)行，應(yīng)用現(xiàn)在進(jìn)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。 expect19．—Where is Frank?—He _________ to music in his room.A．listens B．is listening C．listened D．was listening20．—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．— 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 talked22．— 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 waiting23．My father ________ Beijing next week.A．leaves for B．is leaving for C．left D．leaves24．—Where is your mother, Kitty?—She ________ dinner in the kitchen.A．cooks B．cooked C．is cooking D．will cook25．Xifeng Street is closed today because workers _______ some repairs.A．make B．made C．a(chǎn)re making D．were making26．—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．—I _______ a book report now. Can I talk to you later?—No problem.A．write B．wrote C．a(chǎn)m writing D．was writing29．—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．— Tina, the TV show has already been on. Come and watch together. — Wait a moment. I ________ coffee in the kitchen.A．a(chǎn)m making B．have made C．make D．made31．— Mom, I’m busy making the bed. Can you give me a hand? — Wa