321.What are you doing? I'm ______ my lost keys. A. looking for B. looking after C. looking at D. looking up 答案: A。解析: “looking for”（寻找），根据“lost keys”（丢失的钥匙）可知是正在寻找钥匙；“looking after”（照顾）；“looking at”（看）；“looking up”（查阅、向上看）。 322.She ______ an English song at the party last night. A. sings B. sang C. is singing D. will sing 答案: B。解析: 根据“last night”可知句子时态为一般过去时，“sing”的过去式是“sang”。 323.______ is your new bike? It's 500 yuan. A. How much B. How many C. How long D. How far 答案: A。解析: 根据答语“It's 500 yuan”可知是在询问价格，“How much”用于询问价格；“How many”用于询问可数名词的数量；“How long”用于询问长度或时间长度；“How far”用于询问距离。 324.There are ______ apples in the basket. A. a few B. few C. a little D. little 答案: A。解析: “a few”表示“一些”，修饰可数名词复数“apples”，这里表示篮子里有一些苹果；“few”表示“几乎没有”；“a little”和“little”修饰不可数名词。 325.What do you think of the movie? It's very ______. I like it very much. A. boring B. bored C. interesting D. interested 答案: C。解析: 形容事物“有趣的”用“interesting”，这里表示电影很有趣所以很喜欢；“boring”（无聊的）形容事物；“bored”（感到无聊的）形容人；“interested”（感兴趣的）形容人。 326.He ______ his homework before dinner every day. A. do B. does C. did D. is doing 答案: B。解析: “every day”表明句子时态是一般现在时，主语“he”是第三人称单数，所以动词用“does”。 327.______ have you been in this city? For five years. A. How long B. How soon C. How often D. How far 答案: A。解析: 根据答语“For five years”可知是在询问时间段，“How long”用于询问时间段；“How soon”用于询问将来的时间；“How often”用于询问频率；“How far”用于询问距离。 328.I'm sorry I'm late. ______. A. All right B. That's all right C. You're right D. Right 答案: B。解析: “That's all right”用于回答别人的道歉，表示“没关系”；“All right”表示“好吧”，可用于表示同意或允许；“You're right”表示“你是对的”；“Right”单独使用多表示正确的判断。 329.He is too young to ______ himself. A. look at B. look after C. look for D. look up 答案: B。解析: “look after”表示“照顾”，这里表示他太小了不能照顾自己；“look at”表示“看”；“look for”表示“寻找”；“look up”表示“查阅；向上看”。 330.______ have you been in Beijing? For two years. A. How long B. How soon C. How often D. How far 答案: A。解析: 根据答语“For two years.”可知是在询问时间段，“How long”用于询问时间段；“How soon”用于询问将来的时间；“How often”用于询问频率；“How far”用于询问距离。 331.She ______ an English song at the party last night. A. sings B. sang C. is singing D. will sing 答案: B。解析: 根据“last night”可知句子时态为一般过去时，“sing”的过去式是“sang”。 332. Which season do you like ______, spring or autumn? Spring. A. well B. better C. best D. the best 答案: B。解析: “spring or autumn”是两者比较，要用比较级“better”；“well”是原级；“best”和“the best”是最高级形式，用于三者或三者以上的比较。 333.My mother often ______ me not to be late for school. A. tells B. told C. has told D. is telling 答案: A。解析: “often”表明句子时态为一般现在时，主语“My mother”是第三人称单数，“tell”的第三人称单数形式是“tells”。 334.Do you know ______ man over there? Yes. He is our English teacher. A. the B. a C. an D. / 答案: A。解析: 这里表示特指那边的那个男人，用定冠词“the”。 335.What are you doing? I'm ______ for my keys. I can't find them. A. looking B. looking after C. looking at D. looking for 答案: D。解析: 根据“I can't find them”可知是正在寻找钥匙，“look for”表示“寻找”；“look after”表示“照顾”；“look at”表示“看”；“look”单独使用不表示寻找的意思。 336.If it ______ tomorrow, we will go swimming. A. doesn't rain B. won't rain C. rain D. rains 答案: A。解析: 在if引导的条件状语从句中，主句用一般将来时，从句用一般现在时表示将来，“it”是第三人称单数，否定形式为“doesn't rain”。 337.I have two sisters. ______ of them are teachers. A. All B. Both C. Every D. Each 答案: B。解析: “both”表示“两者都”，用于两者之间；“all”用于三者或三者以上；“every”和“Each”不能直接与“of them”连用，且这里是说两个姐妹都是老师，所以用“both”。 338.How do you like this movie? It's ______. I don't like it at all. A. boring B. bored C. interesting D. interested 答案: A。解析: 形容事物“令人厌烦的”用“boring”，“bored”通常形容人“感到厌烦的”；“interesting”表示“有趣的”，“interested”表示“感兴趣的”，这里说电影令人厌烦，所以用“boring”。 339.He ______ his bike and hurt his leg yesterday. A. fall off B. fell off C. falls off D. is falling off 答案: B。解析: 根据“yesterday”可知句子时态为一般过去时，“fall off”的过去式是“fell off”。 340.______ is your school from your home? It's about ten minutes' walk. A. How long B. How far C. How soon D. How often 答案: B。解析: 根据答语“It's about ten minutes' walk.”可知是在询问距离，“How far”用于询问距离；“How long”表示时间或物体的长度；“How soon”表示多久以后；“How often”表示频率。 341.I'm not sure ______ he will come to my party. A. if B. when C. that D. what 答案: A。解析: “if”表示“是否”，在这里引导宾语从句，表示不确定他是否会来参加派对；“when”表示“什么时候”；“that”在宾语从句中无实际意义；“what”表示“什么”。 342.______ do you go to the library? Once a week. A. How long B. How soon C. How often D. How far 答案: C。解析: 根据答语“Once a week.”可知是在询问去图书馆的频率，“How often”用于询问频率；“How long”表示时间或物体的长度；“How soon”表示多久以后；“How far”表示距离。 343.She is ______ a beautiful girl that everyone likes her. A. such B. so C. very D. too 答案: A。解析: “such + a/an + 形容词+可数名词单数+ that...”表示“如此……以至于……”，这里“a beautiful girl”是名词短语，所以用“such”；“so + 形容词/副词+ that...”。 344.What did you have for breakfast? I ______ some bread and milk. A. have B. had C. will have D. am having 答案: B。解析: 根据问句“What did you have for breakfast?”可知是询问过去吃了什么，答语也要用一般过去时，“have”的过去式是“had”。 345.My father ______ me a story every night when I was a child. A. told B. tells C. has told D. will tell 答案: A。解析: 根据“when I was a child”可知句子时态为一般过去时，“tell”的过去式是“told”。 346.Can you play ______ guitar? Yes, I can. But I can't play it very well. A. the B. a C. an D. / 答案: A。解析: 乐器前面要加定冠词“the”，“play the guitar”表示“弹吉他”。 347.There are too many cars on the road. It's ______ dangerous. A. many B. much C. very D. so 答案: C。解析: “very”用于修饰形容词原级，表示“很，非常”；“many”修饰可数名词复数；“much”修饰比较级；“so”常与“that”连用。这里直接修饰“dangerous”，所以用“very”。 348.How much ______ this pair of shoes? It's 100 yuan. A. is B. are C. was D. were 答案: A。解析: “this pair of shoes”表示这双鞋，中心词是“pair”，为单数，所以be动词用“is”。 349.The boy ______ to school early every day. A. go B. goes C. went D. will go 答案: B。解析: “every day”表明句子时态为一般现在时，主语“The boy”是第三人称单数，动词要用第三人称单数形式“goes”。 350.______ is your favorite subject? English. A. What B. Who C. Which D. Where 答案: A。解析: 根据答语“English”可知是在询问最喜欢的学科是什么，用“what”提问。 351.She ______ some flowers in the garden yesterday. A. picks B. picked C. is picking D. will pick 答案: B。解析: 根据“yesterday”可知句子时态为一般过去时，“pick”的过去式是“picked”。 352.I'm thirsty. You can have some ______. A. bread B. water C. cake D. rice 答案: B。解析: 根据“thirsty”（口渴的）可知应该喝水，“water”符合题意；“bread”（面包）、“cake”（蛋糕）和“rice”（米饭）都不能解渴。 353.______ you ______ your homework yet? Yes, I ______ it an hour ago. A. Have; finished; finished B. Did; finish; finished C. Have; finished; have finished D. Did; finish; have finished 答案: A。解析: 第一句中的“yet”是现在完成时的标志词，所以第一个空用“Have”，第二个空用“finished”；第二句中的“an hour ago”是一般过去时的标志词，所以第三个空用“finished”。 354.He is so tired that he can ______ walk. A. hardly B. hard C. almost D. nearly 答案: A。解析: “hardly”表示“几乎不”，这里表示他太累了几乎不能走路；“hard”作副词时表示“努力地、猛烈地”；“almost”和“nearly”都表示“几乎”。 355.I don't know ______ book this is. It might be Tom's. A. who B. whose C. which D. what 答案: B。解析: 根据答语“It might be Tom's.”可知是在询问这本书是谁的，“whose”表示“谁的”，用于引导宾语从句询问所属关系；“who”表示“谁”；“which”表示“哪一个”；“what”表示“什么”。 356.She is a kind girl. She is always ______ to help others. A. ready B. happy C. good D. like 答案: A。解析: “be ready to do sth.”表示“乐意做某事”，这里表示她总是乐意帮助别人；“happy”后面通常接“about/with”等介词再接动词 - ing形式；“good”后接“at”表示擅长；“like”作为动词表示“喜欢”，不符合题意。 357.______ is the population of your city? It's about five million. A. What B. How many C. How much D. Which 答案: A。解析: 询问人口数量用“what”，这是固定用法；“How many”询问可数名词的数量；“How much”询问不可数名词的数量或价格；“Which”表示“哪一个”。 358.The old man has two sons. One is a doctor, ______ is a teacher. A. another B. other C. the other D. others 答案: C。解析: 表示两者中的“一个……另一个……”用“one...the other...”；“another”表示三者或三者以上中的另一个；“other”是形容词，后接名词；“others”是代词，泛指其他人或物。 359.How often do you exercise? ________________________________________ A. Two days B. Every day C. For two days D. Twice 答案: B。解析: 根据“How often”（询问频率）可知，“Every day”（每天）是回答频率的短语；“Two days”（两天）表示时间段；“For two days”（持续两天）也表示时间段；“Twice”（两次）后面缺少“a week”等表示频率的时间短语。 360.I'm afraid I ______ go with you. I have a lot of homework to do. A. can't B. mustn't C. needn't D. shouldn't 答案: A。解析: 根据“I have a lot of homework to do.”可知不能和对方一起去，“can't”表示“不能”；“mustn't”表示“禁止”；“needn't”表示“不必”；“shouldn't”表示“不应该”。