【正文】
re doing,故選C。21.C【詳解】句意:吉姆,別出聲!你的小妹妹現(xiàn)在正在睡覺。根據(jù)“What are you up to”可知,答語要用現(xiàn)在進行時,表示現(xiàn)在正在進行的動作,結(jié)構(gòu)為a解析:C【詳解】句意:——嗨,大明。故選B。故選B。故選C。我在商店里買一些零食。我在商店里買一些零食??疾闀r態(tài)??疾闀r態(tài)。根據(jù)語境可知,此處指的應(yīng)該是正在準(zhǔn)備做某事,表示正在進行的動作要用現(xiàn)在進行時,結(jié)構(gòu)是“am/ is/ are doing”,主語students是復(fù)數(shù),be動詞用are,故選B。16.B【詳解】句意:——那個糟糕的噪音是什么?——學(xué)生們正在準(zhǔn)備聚會。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。prepare準(zhǔn)備;is preparing現(xiàn)在進行時;will prepare一般將來時;was preparing過去進行時;has prepared現(xiàn)在完成時;根據(jù)時間狀語“now”可知,句子時態(tài)采用現(xiàn)在進行時。14.A【詳解】句意:你最好現(xiàn)在不要打擾凱西,因為她正在為明天的會議準(zhǔn)備演講。你哥哥正在手機上錄音。你哥哥正在手機上錄音??疾閯釉~時態(tài)。故選C。根據(jù)前句“Not now”語境可知,后句的動作正在進行,應(yīng)用現(xiàn)在進行時,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。根據(jù)“Tom, please give me a hand in moving the piano.”及語境可知,此處回答的動作是現(xiàn)在正在進行的,應(yīng)用現(xiàn)在進行時,結(jié)構(gòu)是“be+doing”,故選C。根據(jù)“Tom, please give me a hand in moving the piano.”及語境可知解析:C【詳解】句意:——湯姆,請幫我搬一下鋼琴。10.C【詳解】句意:——湯姆,請幫我搬一下鋼琴。根據(jù)前句“The zoo keeper is worried”的語境可知,后句動作應(yīng)是解析: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。根據(jù)“What’s that noise, Sam?”判斷,此處應(yīng)該用現(xiàn)在進行時,其結(jié)構(gòu)是:be(am/is/are)+動詞的現(xiàn)在分詞。8.B【詳解】句意:——什么聲音,山姆? ——我弟弟正在玩他的玩具車。根據(jù)“Tony, hurry up! We…for you now.”可知,此處強調(diào)動作正在發(fā)生,用現(xiàn)在進行時,故選解析:D【詳解】句意:——托尼,快點!我們現(xiàn)在在等你。故選D。根據(jù)句中“解析:D【詳解】句意:聽!這個男孩又在彈鋼琴了。故選C??疾楝F(xiàn)在進行時的用法。根據(jù)“Where’s your father, Lily?”可知,此處是詢問當(dāng)前的情況,表示正在做某事,用現(xiàn)在進行時,故選解析:D【詳解】句意:——莉莉,你父親在哪里?——他正在廚房做飯。根據(jù)上句“Betty can’t join us in the game”,此處指的是現(xiàn)在發(fā)生的事,故應(yīng)用現(xiàn)在時,且根據(jù)語境可知,貝蒂不能來的原因是她正在打掃教室,故句子應(yīng)用現(xiàn)在進行時,其構(gòu)成是am/is/are doing。考查現(xiàn)在進行時。根據(jù)語境可知,英語演講比賽下周舉行,杰克現(xiàn)在應(yīng)該是正在準(zhǔn)備,因此用現(xiàn)在進行時;其結(jié)構(gòu)是:be(am/is /are)+動詞的現(xiàn)在分詞。根據(jù)語解析:B【詳解】句意:——我有幾天沒見到杰克了。2.B【詳解】句意:——我有幾天沒見到杰克了??疾楝F(xiàn)在進行時。s time for school. Why not get on the bus?—Linda hasn39。t seen Jack for a couple of days. —He ________ for the English speaking petition which will take place next week.A.will prepare B.is preparing C.has prepared D.was preparing3.Betty can’t join us in the game. She ________ the classroom.A.has cleaned B.was cleaning C.has cleaned D.is cleaning4.—Where is your father, Lily?—He ________ in the kitchen.A.cooked B.cooks C.will cook D.is cooking5.I must leave now. My brother ________ for me outside.A.waits B.waited C.is waiting D.was waiting6.Listen! The boy ________ the piano again.A.plays B.played C.will play D.is playing7.—Tony, hurry up! We ________ for you now.—Just one minute.A.wait B.waited C.have waited D.a(chǎn)re waiting8.— What’s that noise, Sam?— My little brother ________ his toy car.A.played B.is playing C.plays D.was playing9.The zoo keeper is worried because the number of visitors ________ smaller and smaller.A.bee B.a(chǎn)re being C.is being D.have bee10.—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 repaired11.—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 helped12.Now ABC Cinema on Forest Road ________ the old f