【正文】 the tree outside the window.A．sing B．sang C．a(chǎn)re singing D．were singing4．I must leave now. My brother ________ for me outside.A．waits B．waited C．is waiting D．was waiting5．—Where is John?—He is in the kitchen. He ________ the dishes now.A．will wash B．is washing C．washes D．washed6．—Tony, hurry up! We ________ for you now.—Just one minute.A．wait B．waited C．have waited D．a(chǎn)re waiting7．Be quiet, please. They _________ a meeting now.A．have B．had C．a(chǎn)re having D．were having8．— What’s that noise, Sam?— My little brother ________ his toy car.A．played B．is playing C．plays D．was playing9．—What about going to the cinema? There’s a new movie called Hi, Mom.—Not now, I ________ my brother Tony with his English.A．help B．helped C．a(chǎn)m helping D．have helped10．Excuse me. I really need to go now. My children _____________for me at school.A．a(chǎn)re waiting B．waits C．wait D．waited11．It’s 4 o’clock in the afternoon. Ms. Green ________ afternoon tea with her friends.A．has B．is having C．had D．was having12．— Lena, I guess you were in a hurry this morning. You ________ your sweater inside out.— Oh my god, I’ll have it changed immediately.A．wore B．a(chǎn)re wearing C．were wearing D．have worn13．—Yesterday I received a letter from .—You did? I hear he________for America next year.A．has left B．leaves C．left D．is leaving14．— Hurry up, Mary. The movie has already been on for ten minutes. —Wait a moment. I ________ some snacks in a shop.A．buy B．bought C．a(chǎn)m buying D．have bought15．—Hurry up!—One moment. I ________ my s.A．reading B．a(chǎn)m reading C．was reading D．have read16．—Mom, it’s so late. Why don’t you go to bed?—Your brother hasn’t e back yet. I ________ for him.A．wait B．a(chǎn)m waiting C．has waited D．waited17．—Tom, where39?？疾闀r(shí)態(tài)?？疾閯?dòng)詞時(shí)態(tài)。根據(jù)句意問句詢問媽媽現(xiàn)在在哪里，可知是現(xiàn)在進(jìn)行時(shí)，表示媽媽正在做飯。句中“Listen”是現(xiàn)在進(jìn)行時(shí)態(tài)的標(biāo)志詞，其結(jié)構(gòu)為am/is/are+動(dòng)詞現(xiàn)在分詞，主語“The birds”是復(fù)數(shù)，be動(dòng)詞解析：C【詳解】句意：聽!鳥兒在窗外的樹上快樂地歌唱。考查現(xiàn)在進(jìn)行時(shí)的用法。故選C。will wash動(dòng)詞的一般將來時(shí)形式；is washing動(dòng)詞的現(xiàn)在進(jìn)行時(shí)形式；washes動(dòng)詞的三單形式；was解析：B【詳解】句意：——約翰在哪里？——他在廚房里。根據(jù)“He is in the kitchen.”和“now”可知，該句為現(xiàn)在進(jìn)行時(shí)，謂語結(jié)構(gòu)是：be+動(dòng)詞的現(xiàn)在分詞?？疾楝F(xiàn)在進(jìn)行時(shí)。根據(jù)“Tony, hurry up! We…for you now.”可知，此處強(qiáng)調(diào)動(dòng)作正在發(fā)生，用現(xiàn)在進(jìn)行時(shí)，故選D。now現(xiàn)在，是現(xiàn)在進(jìn)行時(shí)的標(biāo)志，需用be doing結(jié)構(gòu)；主語students復(fù)數(shù)人稱，be動(dòng)詞用are，故選C。now現(xiàn)在，是現(xiàn)在進(jìn)行時(shí)的標(biāo)志，需用be doing結(jié)構(gòu)；主語students復(fù)數(shù)人稱，be動(dòng)詞用are，故選C。 考查現(xiàn)在進(jìn)行時(shí)?！F(xiàn)在不行，我在幫我弟弟托尼學(xué)英語?？疾閯?dòng)詞時(shí)態(tài)。我真得要走了。我真得要走了。故選A。根據(jù)“It’s 4 o’clock in the afternoon.”可知，此處強(qiáng)調(diào)在某一時(shí)刻正在發(fā)生的動(dòng)作，用現(xiàn)解析：B【詳解】句意：現(xiàn)在是下午4點(diǎn)。12．B【詳解】句意：——Lena，我想今天早上你很匆忙。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。wear穿；根據(jù)“I’ll have it changed immediately”可知在說話的時(shí)候“毛衣穿反”這個(gè)動(dòng)作正在進(jìn)行，用現(xiàn)在進(jìn)行時(shí)，結(jié)構(gòu)是：am/is/are + doing；主語是“You”，be動(dòng)詞用are?？疾闀r(shí)態(tài)。解析：D【詳解】句意：——昨天我收到了安先生的來信。謂語動(dòng)詞leave是位移動(dòng)詞，用進(jìn)行時(shí)表示將來。我在商店里買一些零食。我在商店里買一些零食。故選C。reading 動(dòng)名詞；am reading動(dòng)詞的現(xiàn)在進(jìn)行時(shí)；was reading過去進(jìn)行時(shí)；have read動(dòng)詞解析：B【詳解】句意：——趕緊。根據(jù)“Hurry up”可知此處表達(dá)的是現(xiàn)在正在做的事，用現(xiàn)在進(jìn)行時(shí)be doing。為什么你還不睡？ ——你哥哥還沒有回來。為什么你還不睡？ ——你哥哥還沒有回來。結(jié)合語境可知，母親還沒有睡覺，是因?yàn)樗诘任礆w的哥哥，故句子應(yīng)用現(xiàn)在進(jìn)行時(shí)，故選B。考查動(dòng)詞的時(shí)態(tài)。故選B。考查動(dòng)詞時(shí)態(tài)。19．C【詳解】句意：天正在變黑，我可以打開燈嗎？考查現(xiàn)在進(jìn)行時(shí)。get變得。20．B【