【正文】 句意：我父親下周要動身去北京。解析：B【詳解】句意：你最好不要走這邊。23．B【詳解】句意：你最好不要走這邊。工人們正在修路。22．B【詳解】句意：你最好不要走這邊。我正在打電話。我正在打電話。根據“Let’s go and help her”可知，此處指讓我們去幫助正在做晚飯的奶奶，故為現在進行時，其結構為am/is/are doing。考查動詞時態(tài)。根據題干中“Shall I turn on the light?”可知是說話時天正在變黑，用現在進行時表示動態(tài)的變化。gets動詞的第三人稱單數；got動詞的過去式；is getting現在進行時；was getting過去進行時。根據上文“You nearly hit the tree! What’s up”可知，這件事發(fā)生在現在，且結合語境可知，我快要撞到樹上時正在思考家鄉(xiāng)之旅，故此處應為現在進行時。考查動詞時態(tài)。考查動詞時態(tài)。考查動詞時態(tài)。根據上文“You look absentminded.”可知是詢問現在做的事情，此句時態(tài)是現在進行時。我的一個老朋友要來了。考查句子的時態(tài)。16．B【詳解】句意：——你看起來心不在焉?？疾闀r態(tài)?？疾闀r態(tài)。結合語境可知，母親還沒有睡覺，是因為她正在等未歸的哥哥，故句子應用現在進行時，故選B。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。飛機正在起飛。13．B【詳解】句意：女士們，先生們，請留在座位上，系好安全帶，請將座椅靠背調整好。我的孩子們在學校等我。我的孩子們在學校等我?？疾楝F在進行時。格林女士正在和她的朋友喝茶?！獩]問題。——沒問題。根據句意“…before there is none left”可知，油還沒有用完，快要用完了，這里用現在進行時表示“將要，快要”。根據句意“…before there is none l解析：B【詳解】句意：我的油快要用完了。9．B【詳解】句意：我的油快要用完了。解析：C【詳解】句意：請保持安靜。8．C【詳解】句意：請保持安靜。他們正在開派對。7．B【詳解】句意：噪音來自那群男孩。考查現在進行時。6．D【詳解】句意：聽！這個男孩又在彈鋼琴了?？疾楝F在進行時?？疾闀r態(tài)。故選C?？疾閯釉~時態(tài)和the number of的用法。s not at home.”可知，這里是現在進行時，其結構是be doing的形式。她正在圖書館看書。她正在圖書館看書。根據語境可知，此時不能幫媽媽洗碗，是因為正在做作業(yè)，應用現在進行時，構成形式為：be doing。根據語境可知，此時不能幫媽媽洗碗，是因為正在做作業(yè)，應用現在進行時，構成形式為：be doing。 expecting D．Did。s go to the cinema. There’s a new movie called Avengers IV. —Not now, I _____________ my brother David with his math.A．help B．helped C．am helping D．have helped16．—You look absentminded. ________you ________someone?—Yes. An old friend of mine is ing. We haven39。s not at home. She___________in the library.A．read B．reads C．is reading D．was reading3．The zoo keeper is worried because the number of visitors ________ smaller and smaller.A．bee B．are being C．is being D．have bee4．—What’s that noise, Mike?—My little sister ________ with her toy car now.A．plays B．played C．will play D．is playing5．Listen! The birds ________ happily in the tree outside the window.A．sing B．sang C．are singing D．were singing6．Listen! The boy ________ the piano again.A．plays B．played C．will play D．is playing7．The noise es from the boys. They _______ a party.A．have B．are having C．will have D．have had8．Be quiet, please. They _________ a meeting now.A．have B．had C．are having D．were having9．My oil ________. I must go to the gas station before there is none left.A．has run out B．is running out C．has been run out D．is being run out10．—Peter, please be quiet. Your brother ________ on the phone.—No problem.A．records B．recorded C．was recording D．is recording11．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．Excuse me. I really need to go now. My children _____________for me at school.A．are waiting B．waits C．wait D．waited13．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．—Mom, it’s so late. Why don’t you go to bed?—Your brother hasn’t e back yet. I ________ for