【正文】 以和湯姆講話嗎？——等一下，他正在發(fā)電子郵件。根據(jù)“Look”可知現(xiàn)在正在跳舞，用現(xiàn)在進(jìn)行時，其結(jié)構(gòu)為be doing。根據(jù)“Look”可知現(xiàn)在正在跳舞，用現(xiàn)在進(jìn)行時，其結(jié)構(gòu)為be doing。根據(jù)“Wait a minute.”可知，彼得現(xiàn)在正在洗澡，強調(diào)動作正在進(jìn)行，所以時態(tài)應(yīng)該用現(xiàn)在進(jìn)行時，結(jié)構(gòu)為：am/is/are + 動詞的現(xiàn)在分詞，主語He為第三人稱單數(shù)，be動詞用is。3．A【詳解】句意：——霍金夫人，彼得可以和我們一起玩游戲嗎？ ——等一會兒，他正在洗澡。考查動詞時態(tài)。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(jìn)行的，應(yīng)用現(xiàn)在進(jìn)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。s not at home. She___________in the library.A．read B．reads C．is reading D．was reading20．Listen! The boy ________ the piano again.A．plays B．played C．will play D．is playing21．— May I speak to Mr. Brown?— I am sorry. He ________ an important meeting in his office now.A．has B．had C．is having D．will have22．The students in our group ________ the final preparation for the match. We are sure to win.A．made B．a(chǎn)re making C．make D．will make23．— Mom, I’m busy making the bed. Can you give me a hand? — Wait a moment. I ________ the floor.A．a(chǎn)m cleaning B．will clean C．was cleaning D．have cleaned24．— Hi, Tom. I can’t find David anywhere. Do you know where he is?—Oh, he ________ for tomorrow’s exam at home.A．prepares B．is preparing C．has prepared D．prepared25．My father ________ Beijing next week.A．leaves for B．is leaving for C．left D．leaves26．—Where is your mother, Kitty?—She ________ dinner in the kitchen.A．cooks B．cooked C．is cooking D．will cook27．—How do you find your pany?—A little worried. We ________ ground as a leader in the field of IT with the others speeding up development.A．a(chǎn)re losing B．were losing C．lost D．have lost28．—Lucy, where is Mimi?—She ________ under the chair.A．sleeps B．slept C．is sleeping D．will sleep29．—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．—I _______ a book report now. Can I talk to you later?—No problem.A．write B．wrote C．a(chǎn)m writing D．was writing31．Joe, answer the phone for me. I ________ how to make dumplings in the kitchen.A．learned B．a(chǎn)m learning C．have learned D．learn32．—Tina, let’s go out for shopping.—Sorry, Amy. I __________ my homework.A．do B．a(chǎn)m doing C．did33．Don’t make any noise, Jim! Your little sister ________ now.A．sleeps B．slept C．is sleeping D．will sleep34．— 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．made35．— Where is Tom?— Look! He ________with the teacher over there.A．talk B．talks C．talked D．is talking36．My grandma ________ the old photos. There is a big smile on her face.A．enjoys B．enjoyed C．will enjoy D．is enjoying37．— Amy, can you answer the door? I ________ the room.— I’m ing, Mum.A．clean B．cleaned C．a(chǎn)m cleaning D．have cleaned38．Be quiet! The students ________ an English exam.A．