【正文】 選項A為一般現(xiàn)在時；選項B為一般過去時；選項C為現(xiàn)在進行時；選項D為現(xiàn)在完成時。17．C【詳解】句意：——瑪麗，我們?nèi)タ措娪鞍?。考查動詞的的時態(tài)?！纫幌?。解析：D【詳解】句意：聽！有人正在旁邊的房間里唱歌?？疾闀r態(tài)。12．D【詳解】句意：——我可以用你的電腦嗎？——對不起，我正在用它工作。我在修我的車。根據(jù)問句“What’s that noise, Mike?”可知，提到的聲響是現(xiàn)有的，結(jié)合答句中“now”可知，是說現(xiàn)在正在進行的動作，用現(xiàn)在進行時。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。 考查現(xiàn)在進行時。故選B。5．B【詳解】句意：——約翰在哪里？——他在廚房里。4．B【詳解】句意：噪音來自那群男孩。3．D【詳解】句意：聽！這個男孩又在彈鋼琴了。我可以和勞拉講話嗎？——對不起，她不在家?？疾闀r態(tài)。s not at home. She___________in the library.A．read B．reads C．is reading D．was reading3．Listen! The boy ________ the piano again.A．plays B．played C．will play D．is playing4．The noise es from the boys. They _______ a party.A．have B．a(chǎn)re having C．will have D．have had5．—Where is John?—He is in the kitchen. He ________ the dishes now.A．will wash B．is washing C．washes D．washed6．— Tom, where is your little sister?— She _______ in the backyard now.A．is playing B．will play C．played D．plays7．— What’s that noise, Sam?— My little brother ________ his toy car.A．played B．is playing C．plays D．was playing8．—Hi, Daming. What are you up to?—I ________ a project about family history.A．do B．did C．a(chǎn)m doing D．was doing9．—What’s that noise, Mike?—My little sister ________ with her toy car now.A．plays B．played C．will play D．is playing10．—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．—Hello! May I speak to Tom?—One moment! He _______ an .A．is sending B．sent C．sends D．was sending12．—May I use your puter? —Sorry, I ________ on it.A．work B．worked C．have worked D．a(chǎn)m working13．Ladies and gentlemen, please remain in your seats, fasten your seat belt and bring your seat back. The plane________.A．takes off B．is taking off C．has taken off D．took off14．Listen! Someone __________ in the next room.A．sings B．sang C．was singing D．is singing15．— 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 bought16．—Hurry up!—One moment. I ________ my s.A．reading B．a(chǎn)m reading C．was reading D．have read17．—Mary, let39。2．C【詳解】句意：——你好。read讀書，原形；reads讀書，第三人稱單數(shù)； is reading 正在讀書，現(xiàn)在進行時；was reading正在讀書，過去進行時。根據(jù)句中“解析：D【詳解】句意：聽！這個男孩又在彈鋼琴了。根據(jù)前句“The noise es from the boys.”語境可推知，后句中動作正在進行，應用現(xiàn)在進行時，構(gòu)成形式解析：B【詳解】句意：噪音來自那群男孩。will wash動詞的一般將來時形式；is washing動詞的現(xiàn)在進行時形式；washes動詞的三單形式；was解析：B【詳解】句意：——約翰在哪里？——他在廚房里。根據(jù)問句“where is your little sister”及后面的now可知，此處強調(diào)動作正在進行，應該用現(xiàn)解析：A【詳解】句意：——湯姆，你的小妹妹在哪里?——她現(xiàn)在正在后院玩。根據(jù)“What’s that noise, Sam?”判斷，此處應該用現(xiàn)在進行時，其結(jié)構(gòu)是：be（am/is/are）+動詞的現(xiàn)在分詞。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am/is/are doing，故選C?！獙Σ黄稹?1．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?？疾閯釉~時態(tài)?？疾闀r態(tài)。15．C【詳解】句意：——快點，瑪麗，電影已經(jīng)開始十分鐘了。buy一般現(xiàn)在時；bought一般過去時；am buying現(xiàn)在進行時；have bought現(xiàn)在完成時?？疾閯釉~的的時態(tài)?？疾闀r態(tài)。18．B【詳解】句意：——湯姆，爸爸在哪兒？ ——喔，他正在