【正文】 ——現(xiàn)在不行，我在幫我弟弟大衛(wèi)學(xué)數(shù)學(xué)。15．C【詳解】句意：——瑪麗，我們?nèi)タ措娪鞍?。主語是I，此處用am reading。reading 動名詞；am reading動詞的現(xiàn)在進(jìn)行時；was reading過去進(jìn)行時；have read動詞的現(xiàn)在完成時?！纫粫?，我正在讀我的郵件?？疾閯釉~的的時態(tài)。14．B【詳解】句意：——趕緊?？疾闀r態(tài)?？疾闀r態(tài)。故選A?？疾闀r態(tài)?？疾闀r態(tài)。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(jìn)行時，故選D。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(jìn)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。11．D【詳解】句意：——莉莉，你父親在哪里？——他正在廚房做飯。根據(jù)句中“Now”及句意可知，句中動作表示正在進(jìn)行，表達(dá)“正在播放”應(yīng)該用現(xiàn)在進(jìn)行時，其構(gòu)成是am/is/are doing。根據(jù)句中“Now”及句意可知，句中動作表示正在進(jìn)行，表達(dá)“正在播放”應(yīng)該用現(xiàn)在進(jìn)行時，其構(gòu)成是am/is解析：B【詳解】句意：現(xiàn)在，位于森林路的ABC電影院正在放映老電影《羅馬假日》。10．B【詳解】句意：現(xiàn)在，位于森林路的ABC電影院正在放映老電影《羅馬假日》。根據(jù)句中“Listen”提示，動作正在發(fā)生，故應(yīng)用現(xiàn)在進(jìn)行時?？疾楝F(xiàn)在進(jìn)行時。plays動詞第三人稱單數(shù)形式；played表一般過去時；will play表一般將來時；is playing表現(xiàn)在進(jìn)行時。9．D【詳解】句意：聽！這個男孩又在彈鋼琴了。考查時態(tài)。——對不起。考查時態(tài)?！獙Σ黄?。故選A?？疾閯釉~時態(tài)。根據(jù)“Let’s go and help her”可知，此處指讓我們?nèi)椭谧鐾盹埖哪棠?，故為現(xiàn)在進(jìn)行時，其結(jié)構(gòu)為am/is/a解析：A【詳解】句意：奶奶正在做晚飯。我們?nèi)椭?。故選B。 考查現(xiàn)在進(jìn)行時。 考查現(xiàn)在進(jìn)行時。故選A。考查時態(tài)。考查時態(tài)。故選B。will wash動詞的一般將來時形式；is washing動詞的現(xiàn)在進(jìn)行時形式；washes動詞的三單形式；washed動詞的過去式。他正在洗碗?？疾楝F(xiàn)在進(jìn)行時。4．B【詳解】句意：——約翰在哪里？——他在廚房里。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)成形式為be doing；主語“They”是復(fù)數(shù)形式，be用are；have的現(xiàn)在分詞是having。他們正在開派對?？疾閯釉~時態(tài)。3．B【詳解】句意：噪音來自那群男孩。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，表示媽媽正在做飯。考查動詞時態(tài)。考查動詞時態(tài)。touch摸，主語they是復(fù)數(shù)人稱，系詞需用are，故選D。考查動詞時態(tài)辨析。look“看”用于提醒，后面的句子需用現(xiàn)在進(jìn)行時“be doing”結(jié)構(gòu)。s not at home. She___________in the library.A．read B．reads C．is reading D．was reading20．—May I speak to Mr. Brown? —I am sorry. He _______ an important meeting in his office at the moment.A．has B．had C．is having D．will have21．My grandma ________ the old photos. There is a big smile on her face.A．enjoys B．enjoyed C．will enjoy D．is enjoying22．My father ________ Beijing next week.A．leaves for B．is leaving for C．left D．leaves23．I can’t hear you. I ______ to an English speech.A．a(chǎn)m listening B．listen C．was listening24．—Look out! Something ________ down from the tree.—Dear me! It’s too dangerous.A．falls B．fell C．is falling D．was falling25．—I _______ a book report now. Can I talk to you later?—No problem.A．write B．wrote C．a(chǎn)m writing D．was writing26．Don’t make any noise, Jim! Your little sister ________ now.A．sleeps B．slept C．is sleeping D．will sleep27．— 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．made28．—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 watching29．I can’t lend you my English book, because I _______ it these days.A．use B．have used C．used D．a(chǎn)m using30．—I can’t find David. Where is he?— He________ for tomorrow’s petition at home.A．prepares B．is preparing C．has prepared D．prepared31．—Has your aunt finished writing her novel?—Not yet. She ________ it these days.A．wrote B．writes C．is writing D．will write32．— Ruby, can you help do the dishes?— Just a moment, Mom. I ________ the flower