2024年3月3日发(作者:犹秋巧)
一、选择题
1.I am not happy, because I argued ________ my best friend ________ the problem.
A.for;about
解析:C
【解析】
句意:我不开心,因为我和我最好的朋友就这个问题产生了争论。for为了,因为;with
和…一起;about关于;on在…上面。argue with sb. about sth.固定短语,关于某事和某人争论,故应选C。
2.My cousin is ________ heavy because he often eats ________ fast food.
A.much too; too many
解析:C
【详解】
句意:我的表弟太重了,因为他经常吃快餐。much too修饰形容词或副词;too many修饰可数名词;too much修饰不可数名词。heavy为形容词,要由much too修饰;food为不可数名词,要由too much来修饰,故答案为C。
点睛:本题实际上是考查many, much的用法,前面的so, too只是起到修饰many, much的作用。many修饰可数名词,much修饰不可数名词。如: too/so much money;too/so
many books。
3.We came home and found Lisa ___________ on the sofa.
A.sleep
解析:C
【解析】
句意:我们回到家,发现丽莎睡在沙发上。考查动词形式辨析题。find sb. doing发现某人做某事,固定短语;根据句意结构,可知选C。
4.I don’t want to put ______ on you to make a decision, but we don’t have much time left.
A.pressure
C.experience
解析:A
【解析】
句意:我不想给你施加压力去做决定,但是我们剩下的时间不多了。考查名词辨析题。A.
pressure压力;B. preparation准备;C. experience经验;D. risk冒险。put pressure on sb.强迫某人(做某事);根据句意结构,可知选A。
5.Mr. Brown is used to ______ the e-mails as soon as he gets to his office.
A.looking after
C.looking through
解析:C
【解析】
B.looking forward to
D.looking forC
B.preparation
D.riskA
B.to sleep C.sleeping D.sleptC
B.too much; too much C.much too; too muchC
B.for;on C.with;about D.with;forC
句意:布朗先生一到办公室就习惯于浏览电子邮件。考查动词短语辨析题。A. looking after照顾;B. looking forward to期盼;C. looking through浏览;D. looking for寻找。根据句意结构,可知ABD三个选项意思都与句意不符,故选C。
6.Bob's mother doesn't allow him ________ computer games on school nights.
A.plays
解析:B
【解析】
句意:鲍伯的妈妈不允许他在上学的晚上玩电脑游戏。allow sb. to do sth.允许某人做某事,此句是否定句,故答案为B。
7.—I think students should spend time with friends doing their homework.
—I ________. They would talk ________ doing homework.
A.agree;instead of
C.disagree;instead of
解析:C
【解析】
句意:——我认为学生们应该花费时间喝朋友一起做作业。——我不同意。他们愿意交谈而不做作业。agree同意;disagree不同意;instead of doing sth而不做某事;without doing
sth不做某事;but但是。根据They would talk
可知他们愿意交谈,表示不同意对方的观点,故选C。
8.If you get on well with your classmates,you ________ your school life better.
A.enjoy
解析:B
【解析】
句意:如果你和你的同学们相处得好,你将会能够更好的享受你的学校生活。enjoy享受,喜欢,动词原形;will enjoy一般将来时态;enjoyed动词的过去式;are enjoying现在进行时态。句中If引导的是条件状语从句,从句中用一般现在时态,主句用一般将来时态,故选B。
9.Children are not allowed ________ in the river.
A.to swim
解析:A
【解析】
句意:孩子们不被允许在河里游泳。be allowed to do sth被允许做某事,故为to swim,故选A。
10.Jack competed ________ David for the monitor(班长) at the meeting yesterday.
A.on
解析:B
【解析】
句意:昨天杰克在会议上为了班长一职和大卫竞争。on在……上面;with和……一起;in在……里;at在。此处表示和某人竞争,用compete with,故选B。
B.with C.in D.atB
B.swim C.swimming D.swamA
B.will enjoy C.enjoyed D.are enjoyingB
B.agree;without
D.don't disagree;butC
B.to play C.playingB
11.—I ________ my best friend yesterday morning.
—Why not call her up and say sorry to her?
A.argued with
解析:A
【解析】
句意:——昨天上午我和我最好的朋友争吵。——你为什么不给她打电话说对不起呢?argue
with和……争吵;look after
照顾;hung out with和…...一起闲逛;depend on依靠。根据Why not call her up and say sorry to her?可知此处表示对朋友说对不起,应是表示和朋友争吵了,故选A。
12.--Would you mind helping me look after my baby for a while? --________
A.sure, be careful on the way
C.of course not, dear
解析:C
【分析】
【详解】
句意:—你介意帮我照看一下我的孩子吗?—当然不,亲爱的。Sure, be careful on the way当然,在路上要小心(表示介意);Oh, don’t you like children哦,你不喜欢孩子们;Of
course not, dear.
当然不,亲爱的;Yeah, I hope so是的,我希望如此。所以选C。
13.—Why was your teacher ________ Mark?
—Because he didn't finish his homework on time.
A.different from
解析:B
【解析】
句意:-你的老师为什么生Mark的气?-因为他没有按时完成他的作业。different from和…不同;angry with sb.生某人的气;similar to与…相似;interested in对…感兴趣。根据句意Because he didn't finish his homework on time.可知,Mary没有按时完成作业,老师会生气,故应选B。
14.Before a big exam,I'm always ______.What should I do?
A.crazy
解析:C
【解析】
句意:大考之前,我总是很紧张,我该怎么办?A. crazy疯狂的;B. typical典型的;C.
nervous紧张的;D. wrong错误的。考前紧张在学生中很常见,结合句意可知,答案为C。
15.My mother is very angry with me,because I ________ up late this morning.
A.am getting
解析:C
【解析】
句意:我的妈妈很生我的气,因为我今天早上起床晚了。am getting现在进行时;get动词B.get C.got D.will getC
B.typical C.nervous D.wrongC
B.angry with C.similar to D.interested inB
B.oh, don't you like children?
D.yeah, I hope soC
B.looked after C.hung out with D.depended onA
原形;got是get的过去式;will get一般将来时态。根据句意和句中的时间状语this
morning可知,这句话说的是过去的事情,应用一般过去时态,故选C。
16.______ you say, we don't believe you.
A.What
解析:C
【详解】
句意:无论你说什么,我们都不相信你。
考查连词辨析。What什么;Wherever无论哪里;Whatever无论什么;Anyway不管怎样,无论如何,根据后面的“you say, we don't believe you”可知,应该是无论你说什么,我们都不相信你,故用whatever引导让步状语从句。故选C。
17.—It’s said that drinking coffee __________ cancer. Do I have to give it up?
—Relax! Not everything on Wechat is true. In fact, a coffee a day keeps the doctor away.
A.causes
解析:A
【详解】
句意:——据说喝咖啡会致癌。我必须放弃喝咖啡吗?——放松些!并不是所有微信上的东西都是真实的。事实上,一天喝一杯咖啡不会生病看医生。drinking coffee作从句的主语,喝咖啡会致癌只是微信中别人的一种说法,时态用一般现在时来描述,故答案为A。
18.The music make the baby_____________.
A.laugh
解析:A
【详解】
句意:音乐让那个婴儿笑了起来。make sb do sth,使得某人做某事,make之后的动词要用动词原形作宾语补足语,故答案为A。
19.One important aim of our school is to prepare us for the future ________ we can face all the
challenges with confidence.
A.so far
解析:B
【详解】
句意:我们学校的一个重要目标就是让我们为未来做好准备,这样我们才能自信地面对所有的挑战。so far到目前为止;so that以便…,为的是;even if即使,尽管;if only要是…多好啊。根据句意可知,空后的这句话表示目的,用so that引导目的状语从句。故选B。
20.The teachers encourage their students to ______ the problems by themselves, and in this
way students can enjoy success.
A.give up
C.look through
解析:B
【详解】
句意:老师鼓励学生自己解决这道难题,这样学生可以享受成功的喜悦。A. give up放弃;
B.work out
D.look upB
B.so that C.even if D.if onlyB
B.to laugh C.laughing D.laughsA
B.has caused C.caused D.had causedA
B.Wherever C.Whatever D.AnywayC
B. work out算出,解决;C. look through仔细检查,浏览;D. look up查找,向上看。根据the problems可知这里一般说解决难题。故答案选B。
21.—I have so many after-school classes that I don’t have enough time to rest.
—Why don’t you ______ to your parents?
A.talking
解析:C
【解析】
【详解】
句意:——我有那么多课外班,没有足够的时间休息。——你为什么不跟你父母谈谈?Why
引导的否定疑问句的句式为“Why don't/doesn't +主语+动词原形”或者“Why not+动词原形”。否定疑问句中,助动词后应接动词原形。故talk符合题意,正确答案为C。
22.“Why are you always comparing me ______ others? I hate it!” Lucy said to her mother.
A.to
解析:D
【详解】
露西对她的妈妈说:“为什么你总是把我和别人做比较?我讨厌这样。”
考查动词短语。to到;in在……里;of……的;with与……一起。:compare…with是固定短语,意为“把……和……做比较”,符合题意,故答案为D。
23.Nowadays schools should care for the full _______of a student’s talents.
A.satisfaction
解析:C
【详解】
句意:现在学校应该关心学生才能的全面发展。考查名词辨析。A.
满意;B.
沟通;C.
发展;D.准备。care for关心,根据of a student’s talents可知development符合句意,故选C。
24.US scientist Edward T. Hall said that in a conversation between two people, 65% of
_________ is done through body language.
A.application
解析:D
【详解】
句意“美国科学家爱德华霍尔说:在两个人的对话中,65%的交流是通过肢体语言完成的”。A.应用,申请;B.发音;C.介绍;D.交流。根据句意可知,交流时,65%都是肢体语言,故选D。
25.— What does Huawei’s newest smartphone look like?
— It’s wonderful! You can it in half just like closing a book.
A.hand
解析:C
【详解】
句意:——华为最新的智能手机是什么样子的?——它太棒了!你可像一本书一样把它折B.pass C.fold D.cutC
B.pronunciation C.introduction D.communicationD
B.communication C.development D.preparationC
B.in C.of D.withD
B.to talk C.talk D.talksC
叠起来。考查动词辨析。A. hand传递;B. pass经过;C. fold折叠;D. cut切割。根据in
half just like closing a book就像合上一本书一样,可推知应是可以把它折叠起来,故答案选C。
26.—Honey, come and help me _____ the picture of balloons from the magazine.
—OK, Granny. I’m coming.
A.carry out
解析:C
【详解】
句意:——亲爱的,过来帮助我把这张气球的图片从杂志上剪下来。——好的,奶奶。我就来。
carry out
执行;work out计算出,解决;cut out剪出;hand out分发。根据空后the
picture of balloons from the magazine可知,这里表示“把图片剪下来”,故应选C。
27.The old man feels very because he lives .
A.alone ; alone
解析:C
【解析】
句意:那个老人觉得很寂寞,因为他独自一人居住。alone独自一个人,可以作形容词,但是只做表语,不用做定语,
也可以做副词。lonely既可以作定语,也可以作表语.
作表语是‘寂寞’、‘孤立’的意思,一般指人孤独寂寞;作定语指地方荒无人烟,有浓厚的感情色彩。第一空作为系动词feel的表语,表示寂寞的,故用形容词lonely。第二空修饰动词live,故用副词,故为alone。故选C。
28.David, you please sweep the floor and take out the trash?
A.could
解析:A
【详解】
句意:David,你能打扫一下地板,把垃圾倒掉吗?A. could能,会;B. may
可以;C.
might可以;D. must必须。根据横线后面的内容,扫地板,倒垃圾,所知,是表
示允许而且带有委婉的语气,could you please+动词原形,表示请你做……好吗?故选 A。
29.Whenever we see someone in trouble,we should offer ______ him or her.
A.help
解析:D
【详解】
句意:每当我们看到某人有困难时,我们应该主动帮助他或她。
考查非谓语动词。offer to do sth.“提供做某事”,help是动词,帮助,此处用动词不定式,故选D。
30.— I am really __________ before the competition.
— Take it easy. Sure you are the best.
A.cool
解析:B
B.nervous C.serious D.patientB
B.helping C.helps D.to helpD
B.may C.might D.mustA
B.Lonely; lonely C.lonely;alone D.alone;lonelyC
B.work out C.cut out D.hand outC
【解析】
句意:-在比赛之前我真的很紧张。-放轻松,你一定是最好的。cool酷的,凉爽的;nervous紧张的;serious严肃的,认真的;patient有耐心的。根据句意before the
competition和下面的回答Take it easy可知,说话人感到很紧张,故选B。
2024年3月3日发(作者:犹秋巧)
一、选择题
1.I am not happy, because I argued ________ my best friend ________ the problem.
A.for;about
解析:C
【解析】
句意:我不开心,因为我和我最好的朋友就这个问题产生了争论。for为了,因为;with
和…一起;about关于;on在…上面。argue with sb. about sth.固定短语,关于某事和某人争论,故应选C。
2.My cousin is ________ heavy because he often eats ________ fast food.
A.much too; too many
解析:C
【详解】
句意:我的表弟太重了,因为他经常吃快餐。much too修饰形容词或副词;too many修饰可数名词;too much修饰不可数名词。heavy为形容词,要由much too修饰;food为不可数名词,要由too much来修饰,故答案为C。
点睛:本题实际上是考查many, much的用法,前面的so, too只是起到修饰many, much的作用。many修饰可数名词,much修饰不可数名词。如: too/so much money;too/so
many books。
3.We came home and found Lisa ___________ on the sofa.
A.sleep
解析:C
【解析】
句意:我们回到家,发现丽莎睡在沙发上。考查动词形式辨析题。find sb. doing发现某人做某事,固定短语;根据句意结构,可知选C。
4.I don’t want to put ______ on you to make a decision, but we don’t have much time left.
A.pressure
C.experience
解析:A
【解析】
句意:我不想给你施加压力去做决定,但是我们剩下的时间不多了。考查名词辨析题。A.
pressure压力;B. preparation准备;C. experience经验;D. risk冒险。put pressure on sb.强迫某人(做某事);根据句意结构,可知选A。
5.Mr. Brown is used to ______ the e-mails as soon as he gets to his office.
A.looking after
C.looking through
解析:C
【解析】
B.looking forward to
D.looking forC
B.preparation
D.riskA
B.to sleep C.sleeping D.sleptC
B.too much; too much C.much too; too muchC
B.for;on C.with;about D.with;forC
句意:布朗先生一到办公室就习惯于浏览电子邮件。考查动词短语辨析题。A. looking after照顾;B. looking forward to期盼;C. looking through浏览;D. looking for寻找。根据句意结构,可知ABD三个选项意思都与句意不符,故选C。
6.Bob's mother doesn't allow him ________ computer games on school nights.
A.plays
解析:B
【解析】
句意:鲍伯的妈妈不允许他在上学的晚上玩电脑游戏。allow sb. to do sth.允许某人做某事,此句是否定句,故答案为B。
7.—I think students should spend time with friends doing their homework.
—I ________. They would talk ________ doing homework.
A.agree;instead of
C.disagree;instead of
解析:C
【解析】
句意:——我认为学生们应该花费时间喝朋友一起做作业。——我不同意。他们愿意交谈而不做作业。agree同意;disagree不同意;instead of doing sth而不做某事;without doing
sth不做某事;but但是。根据They would talk
可知他们愿意交谈,表示不同意对方的观点,故选C。
8.If you get on well with your classmates,you ________ your school life better.
A.enjoy
解析:B
【解析】
句意:如果你和你的同学们相处得好,你将会能够更好的享受你的学校生活。enjoy享受,喜欢,动词原形;will enjoy一般将来时态;enjoyed动词的过去式;are enjoying现在进行时态。句中If引导的是条件状语从句,从句中用一般现在时态,主句用一般将来时态,故选B。
9.Children are not allowed ________ in the river.
A.to swim
解析:A
【解析】
句意:孩子们不被允许在河里游泳。be allowed to do sth被允许做某事,故为to swim,故选A。
10.Jack competed ________ David for the monitor(班长) at the meeting yesterday.
A.on
解析:B
【解析】
句意:昨天杰克在会议上为了班长一职和大卫竞争。on在……上面;with和……一起;in在……里;at在。此处表示和某人竞争,用compete with,故选B。
B.with C.in D.atB
B.swim C.swimming D.swamA
B.will enjoy C.enjoyed D.are enjoyingB
B.agree;without
D.don't disagree;butC
B.to play C.playingB
11.—I ________ my best friend yesterday morning.
—Why not call her up and say sorry to her?
A.argued with
解析:A
【解析】
句意:——昨天上午我和我最好的朋友争吵。——你为什么不给她打电话说对不起呢?argue
with和……争吵;look after
照顾;hung out with和…...一起闲逛;depend on依靠。根据Why not call her up and say sorry to her?可知此处表示对朋友说对不起,应是表示和朋友争吵了,故选A。
12.--Would you mind helping me look after my baby for a while? --________
A.sure, be careful on the way
C.of course not, dear
解析:C
【分析】
【详解】
句意:—你介意帮我照看一下我的孩子吗?—当然不,亲爱的。Sure, be careful on the way当然,在路上要小心(表示介意);Oh, don’t you like children哦,你不喜欢孩子们;Of
course not, dear.
当然不,亲爱的;Yeah, I hope so是的,我希望如此。所以选C。
13.—Why was your teacher ________ Mark?
—Because he didn't finish his homework on time.
A.different from
解析:B
【解析】
句意:-你的老师为什么生Mark的气?-因为他没有按时完成他的作业。different from和…不同;angry with sb.生某人的气;similar to与…相似;interested in对…感兴趣。根据句意Because he didn't finish his homework on time.可知,Mary没有按时完成作业,老师会生气,故应选B。
14.Before a big exam,I'm always ______.What should I do?
A.crazy
解析:C
【解析】
句意:大考之前,我总是很紧张,我该怎么办?A. crazy疯狂的;B. typical典型的;C.
nervous紧张的;D. wrong错误的。考前紧张在学生中很常见,结合句意可知,答案为C。
15.My mother is very angry with me,because I ________ up late this morning.
A.am getting
解析:C
【解析】
句意:我的妈妈很生我的气,因为我今天早上起床晚了。am getting现在进行时;get动词B.get C.got D.will getC
B.typical C.nervous D.wrongC
B.angry with C.similar to D.interested inB
B.oh, don't you like children?
D.yeah, I hope soC
B.looked after C.hung out with D.depended onA
原形;got是get的过去式;will get一般将来时态。根据句意和句中的时间状语this
morning可知,这句话说的是过去的事情,应用一般过去时态,故选C。
16.______ you say, we don't believe you.
A.What
解析:C
【详解】
句意:无论你说什么,我们都不相信你。
考查连词辨析。What什么;Wherever无论哪里;Whatever无论什么;Anyway不管怎样,无论如何,根据后面的“you say, we don't believe you”可知,应该是无论你说什么,我们都不相信你,故用whatever引导让步状语从句。故选C。
17.—It’s said that drinking coffee __________ cancer. Do I have to give it up?
—Relax! Not everything on Wechat is true. In fact, a coffee a day keeps the doctor away.
A.causes
解析:A
【详解】
句意:——据说喝咖啡会致癌。我必须放弃喝咖啡吗?——放松些!并不是所有微信上的东西都是真实的。事实上,一天喝一杯咖啡不会生病看医生。drinking coffee作从句的主语,喝咖啡会致癌只是微信中别人的一种说法,时态用一般现在时来描述,故答案为A。
18.The music make the baby_____________.
A.laugh
解析:A
【详解】
句意:音乐让那个婴儿笑了起来。make sb do sth,使得某人做某事,make之后的动词要用动词原形作宾语补足语,故答案为A。
19.One important aim of our school is to prepare us for the future ________ we can face all the
challenges with confidence.
A.so far
解析:B
【详解】
句意:我们学校的一个重要目标就是让我们为未来做好准备,这样我们才能自信地面对所有的挑战。so far到目前为止;so that以便…,为的是;even if即使,尽管;if only要是…多好啊。根据句意可知,空后的这句话表示目的,用so that引导目的状语从句。故选B。
20.The teachers encourage their students to ______ the problems by themselves, and in this
way students can enjoy success.
A.give up
C.look through
解析:B
【详解】
句意:老师鼓励学生自己解决这道难题,这样学生可以享受成功的喜悦。A. give up放弃;
B.work out
D.look upB
B.so that C.even if D.if onlyB
B.to laugh C.laughing D.laughsA
B.has caused C.caused D.had causedA
B.Wherever C.Whatever D.AnywayC
B. work out算出,解决;C. look through仔细检查,浏览;D. look up查找,向上看。根据the problems可知这里一般说解决难题。故答案选B。
21.—I have so many after-school classes that I don’t have enough time to rest.
—Why don’t you ______ to your parents?
A.talking
解析:C
【解析】
【详解】
句意:——我有那么多课外班,没有足够的时间休息。——你为什么不跟你父母谈谈?Why
引导的否定疑问句的句式为“Why don't/doesn't +主语+动词原形”或者“Why not+动词原形”。否定疑问句中,助动词后应接动词原形。故talk符合题意,正确答案为C。
22.“Why are you always comparing me ______ others? I hate it!” Lucy said to her mother.
A.to
解析:D
【详解】
露西对她的妈妈说:“为什么你总是把我和别人做比较?我讨厌这样。”
考查动词短语。to到;in在……里;of……的;with与……一起。:compare…with是固定短语,意为“把……和……做比较”,符合题意,故答案为D。
23.Nowadays schools should care for the full _______of a student’s talents.
A.satisfaction
解析:C
【详解】
句意:现在学校应该关心学生才能的全面发展。考查名词辨析。A.
满意;B.
沟通;C.
发展;D.准备。care for关心,根据of a student’s talents可知development符合句意,故选C。
24.US scientist Edward T. Hall said that in a conversation between two people, 65% of
_________ is done through body language.
A.application
解析:D
【详解】
句意“美国科学家爱德华霍尔说:在两个人的对话中,65%的交流是通过肢体语言完成的”。A.应用,申请;B.发音;C.介绍;D.交流。根据句意可知,交流时,65%都是肢体语言,故选D。
25.— What does Huawei’s newest smartphone look like?
— It’s wonderful! You can it in half just like closing a book.
A.hand
解析:C
【详解】
句意:——华为最新的智能手机是什么样子的?——它太棒了!你可像一本书一样把它折B.pass C.fold D.cutC
B.pronunciation C.introduction D.communicationD
B.communication C.development D.preparationC
B.in C.of D.withD
B.to talk C.talk D.talksC
叠起来。考查动词辨析。A. hand传递;B. pass经过;C. fold折叠;D. cut切割。根据in
half just like closing a book就像合上一本书一样,可推知应是可以把它折叠起来,故答案选C。
26.—Honey, come and help me _____ the picture of balloons from the magazine.
—OK, Granny. I’m coming.
A.carry out
解析:C
【详解】
句意:——亲爱的,过来帮助我把这张气球的图片从杂志上剪下来。——好的,奶奶。我就来。
carry out
执行;work out计算出,解决;cut out剪出;hand out分发。根据空后the
picture of balloons from the magazine可知,这里表示“把图片剪下来”,故应选C。
27.The old man feels very because he lives .
A.alone ; alone
解析:C
【解析】
句意:那个老人觉得很寂寞,因为他独自一人居住。alone独自一个人,可以作形容词,但是只做表语,不用做定语,
也可以做副词。lonely既可以作定语,也可以作表语.
作表语是‘寂寞’、‘孤立’的意思,一般指人孤独寂寞;作定语指地方荒无人烟,有浓厚的感情色彩。第一空作为系动词feel的表语,表示寂寞的,故用形容词lonely。第二空修饰动词live,故用副词,故为alone。故选C。
28.David, you please sweep the floor and take out the trash?
A.could
解析:A
【详解】
句意:David,你能打扫一下地板,把垃圾倒掉吗?A. could能,会;B. may
可以;C.
might可以;D. must必须。根据横线后面的内容,扫地板,倒垃圾,所知,是表
示允许而且带有委婉的语气,could you please+动词原形,表示请你做……好吗?故选 A。
29.Whenever we see someone in trouble,we should offer ______ him or her.
A.help
解析:D
【详解】
句意:每当我们看到某人有困难时,我们应该主动帮助他或她。
考查非谓语动词。offer to do sth.“提供做某事”,help是动词,帮助,此处用动词不定式,故选D。
30.— I am really __________ before the competition.
— Take it easy. Sure you are the best.
A.cool
解析:B
B.nervous C.serious D.patientB
B.helping C.helps D.to helpD
B.may C.might D.mustA
B.Lonely; lonely C.lonely;alone D.alone;lonelyC
B.work out C.cut out D.hand outC
【解析】
句意:-在比赛之前我真的很紧张。-放轻松,你一定是最好的。cool酷的,凉爽的;nervous紧张的;serious严肃的,认真的;patient有耐心的。根据句意before the
competition和下面的回答Take it easy可知,说话人感到很紧张,故选B。