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—I’m tired because I studied until midnight last night.

—Why not go to sleep ________ this evening?

A. late B. later C. early D. earlier

D 【解析】句意：——我累了，因為我昨晚學(xué)習(xí)到深夜。——今晚為什么不早點睡覺呢？考查比較級辨析題。根據(jù)句意語境，可知是this evening和last night進(jìn)行比較；go to sleep上床睡覺，動詞短語需用副詞修飾；應(yīng)該用副詞比較級，可排除AC選項。而later不合句意，故選D。

—I ________ you at seven and you didn’t pick up.

—I was taking a shower at that time.

A. call B. called C. am calling D. have called

B 【解析】句意：——我七點鐘打電話給你，你沒接。——那時我正在洗澡�？疾閯釉~時態(tài)辨析題。and連接并列結(jié)構(gòu)，at seven在七點鐘，是過去的時間，需用一般過去時，可排除ACD三項。根據(jù)句意語境，可知選B。

I often help mum ________ the housework because I think it’s good for me.

A. with B. in C. on D. of

A 【解析】句意：我經(jīng)常幫助媽媽做家務(wù)，因為我認(rèn)為這對我有好處。考查介詞辨析題。help sb. with sth.幫助某人做某事，固定短語。根據(jù)句意語境，可知選A。

—Have you decided what you would like to make for our party?

—Yes, a delicious cake. In fact, I ________ making it.

A. finish B. am finishing C. finished D. have finished

D 【解析】句意：——你決定為我們的聚會做什么了嗎？——是的，（做）一個美味的蛋糕。事實上，我已經(jīng)完成了�？疾閯釉~時態(tài)辨析題。in fact事實上；根據(jù)句意語境，可知用現(xiàn)在完成時，故選D。

—________ books did you sell last Sunday?

—About 100.

A. How many B. How much C. How heavy D. How long

A 【解析】句意：——上星期日你賣了多少本書？——大約100本�？疾橐蓡栐~辨析題。A. How many多少，問數(shù)量；B. How much多少，問價格/數(shù)量；C. How heavy多重，問重量；D. How long多長，問長度或時間。根據(jù)答語About 100.，可知問的是數(shù)量，可排除CD選項。AB都可以問數(shù)量，但how much后接不可數(shù)名詞，books是復(fù)數(shù)名詞，故選A。 ...

Scott has just got a new job. He ________ at a radio station next week.

A. works B. worked C. will work D. is working

C 【解析】句意：史葛剛剛找到一份新工作。下周他將在一個廣播電臺工作�？疾閯釉~時態(tài)辨析題。next week下個星期，用于一般將來時，可排除ABD三個選項。根據(jù)句意語境，可知選C。

The stories in this book may be old, _________ they’re still interesting.

A. so B. and C. or D. but

D 【解析】句意：這本書的故事可能很古老，但它們?nèi)匀缓苡腥�。考查連詞辨析題。A. so所以，表因果；B. and和，表并列；C. or或者，表選擇；D. but但是，表轉(zhuǎn)折。根據(jù)句意語境，可知本句前后是轉(zhuǎn)折關(guān)系，故選D。

—I’m going to town. Would you like to join me?

—Sorry, I ________. I still have lots of homework to do.

A. can B. can’t C. must D. needn’t

B 【解析】句意：——我要進(jìn)城去。你愿意和我一起去嗎？——對不起，我不能。我還有很多作業(yè)要做�？疾榍閼B(tài)動詞辨析題。A. can能夠/可以，表示允許；B. can’t不能，表示拒絕；C. must必須，一定；D. needn’t不必，指沒必要。根據(jù)下文I still have lots of homework to do.，可知是否定回答，故選B。

The plants must________ every three days, or they will fail to grow.

A. water B. watering C. be watered D. watered

C 【解析】句意：這些植物必須每三天澆一次水，否則它們就不能生長�？疾楸粍诱Z態(tài)。must一定，情態(tài)動詞后接原形動詞。plants是動詞water（澆水）的受動者，需用被動語態(tài)，即“be+過去分詞”結(jié)構(gòu)。根據(jù)句意結(jié)構(gòu)和語境，可知選C。

—Could you tell me ________ back from her hometown?

—Yes. She’ll be back this Sunday.

A. when Alice came B. when did Alice come

C. when Alice will come D. when will Alice come

C 【解析】句意：——你能告訴我愛麗絲什么時候從家鄉(xiāng)回來嗎？——是的。她這個星期日回來。考查賓語從句。賓語從句，需用陳述句語序，BD是疑問語序，可排除。根據(jù)答語She’ll be back this Sunday.，結(jié)合句意語境，可知用一般將來時，故選C。