(英语)初中英语名词常见题型及答题技巧及练习题(含答案)

（英语）初中必备英语名词性从句技巧全解及练习题(含答案)及解析一、初中英语名词性从句1． is known to all is that the earth is smaller than the sun.A. AsB. WhatC. ItD. Which【答案】 B【解析】【分析】句意：众所周知地球比太阳小。

is known to all 是主语从句，从句中缺少主语，因此用what，选B。

【点评】考查名词性从句，本题涉及what引导的主语从句。

2．Some people believe _______ has happened before or is happening now will repeat itself in the future.A. whateverB. wheneverC. whereverD. no matter what【答案】 A【解析】【分析】句意：一些人认为之前发生的或现在正在发生的任何事情在将来都会重复发生。

Whatever has happened before or is happening now是一个主语从句，whatever既引导起这个主语从句，也在句中做主语。

BC项都属于副词的性质，都不能做主语，通常只能做状语；no matter what只能用来引导状语从句，故选A。

【点评】考查名词性从句，本题涉及"特殊疑问词+ever"引导的主语从句。

3．It________that the road will be closed tomorrow for repairs.A. was announcedB. has been announcedC. had been announcedD. would be announced【答案】 B【解析】【分析】本题考查动词的时态和语态。

题干句子中that到句子结束是宾语从句，且从句动词用“will＋动词原形”表示将来，由此推断出空白处谓语动词应用现在的某种时态，在所给四个选项中，只有B项正确。

一、选择题1．________ your reading speed, or you can’t finish the English reading materials in ________ limited time.A．Increase; 100 minutes’B．To increase; a 100-minute C．Increasing; 100-minutes’2．________the________Mike’ s and Jack’s?A．Is, rooms B．Are, room C．Are, rooms D．Is, room3．________wild animals are disappearing because of the ________of their living areas. A．The number of; lost B．The number of; losing C．A number of; loseD．A number of; loss4．There are two________ near our school.A．shoe shops B．shoes shops C．shoe's shops D．shoes' shops 5．---- _________ is it from Nanjing to Beijing?--- It’s less than three ___________ flight.A．How long, hour’s B．How far, hour’sC．How long, hours’D．How far, hours’6．Those _________ plans for the holiday sound great. How about ________?A．girl’s ; yours B．girls’; youC．girls ; your D．girls’; yours7．—Kate, I will go to the Guangzhou Zoo next week, because I will have a ________ holiday —You mean you can have ________ off? Oh, that’s great!A．three-day; three days B．three- day; three days’C．three days’; three-day D．three days; three days8．—Tom likes soccer.What club can he join?—He can join the ______ club.A．sport B．musicC．sports D．swimming9．Look! The Chinese national basketball team ________ a face-to-face interview with their fans in the hall. How excited the fans are!A．is having B．are having C．have D．has10．—It’s convenient(方便的) to travel from Suzhou to Shanghai by car?—Yes. It’s said that_________is enough.A．two hours drive B．two-hours driveC．two hour’s drive D．two hours’ drive11．Thanks for the two _______________you gave（给）to me.A．tape player B．tapes players C．tape players D．taper players 12．—Do you think it is _______good advice?—Yes, it’s really _______useful suggestion.A．a; an B．/; a C．a; a D．/; an13．—_________ is it from Wuxi to Shanghai?—It’s about ________ drive.A．How long; a two hours’B．How far; a two-hoursC．How far; two hours’D．How long; a two-hour14．—How many________ doctors are there in your hospital?—________ them________ over one hundredA．woman; The number of; is B．women; The number of; is C．women; A number of; are15．--What kind of noodles you like?--I’d like noodles．A．do；tomatoes B．would；tomato C．do；tomato D．would；tomatoes 16．One of the ________ was late for the game yesterday.A．plays B．player C．playing D．players 17．Can you tell me the ________ habits of the butterflies?A．living B．live C．lives D．lived 18．These aren’t.They’re my brother’s.A．pen;mine B．pens;mineC．pen;my D．pens;my19．This is Bob Smith. His last name is________.A．Bob B．Smith C．Bob Smith20．________he_______big________?A．Does; has; foot B．Does; have; feet C．Do; have; foots 21．This zebra is an ______ animal. It lives in ______ now.A．Africa; Africa B．African; AfricaC．Africa; African D．African; African22．This is ________ bedroom. Jenny shares it ________ her twin sister.A．Jenny and Maria’s; of B．Jenny and Maria’s; withC．Jenny’s and Maria’s; about D．Jenny’s and Maria; with23．________mothers work in the same hospital.A．Tim’s and Peter’s B．Tim’s and Peter C．Tim and Peter’s D．Tim and Peter 24．There are some ________and ________ on the table.A．potatoes; tea B．chicken; sweets C．tomatos; porks D．tomatos; milk 25．My sister and I like eating two _______ and some _______ for dinner. They are really delicious.A．salad; eggs B．salads; eggs C．salad; eggs D．salads; egg【参考答案】***试卷处理标记，请不要删除1．A解析：A【解析】【分析】【详解】句意：提高你的阅读速度，否则你不能在100分钟的有限时间内完成英语阅读材料。

中考英语名词性从句解题技巧( 超强 ) 及练习题 ( 含答案 )一、初中英语名词性从句1．______excited Jenny most was ______ she finally succeeded in ______seemed to be themost difficult exam to him.A. That; that; whichB. What; that; whatC. That; because; thatD. What; because; which 【答案】 B【分析】【剖析】句意：珍妮最的是他来仿佛是最困的考，她于成功了。

______excited Jenny most是主从句，从句中缺少主，因此用关系代what；_____ she finally succeeded in...是表从句，从句中不缺乏成分，所以用引that ； ______seemed to be the most difficult exam to him.是从句，从句中缺乏主，所以用关系代what，故B。

【点】考名性从句，本波及主从句，表从句和从句。

2．___ surprised me most was ____the girl passed the driver test.A. That; thatB. What; howC. What; thatD. That; why 【答案】C【分析】【剖析】句意：最我惊讶的是那个女孩通了考。

___ surprisedme most 是一个主从句，从句中缺乏主，故填what ； ____the girl passed the driver test是一个表从句，句中不缺乏成分，故填that 。

所以 C 。

【点】考名性从句，本波及what 引的主从句和that 引的表从句。

3．is clear to the members of the committee is that the President will not give in to their demands.A. WhoB. ItC. AsD. What【答案】D【分析】【剖析】句意：委会成清楚的是，不会向他的要求步。

（英语）英语名词性从句解题技巧(超强)及练习题(含答案)含解析一、初中英语名词性从句1．He took a trip to Beijing last week and ________ he saw at the Forbidden City impressed him deeply.A. thatB. howC. whatD. which【答案】 C【解析】【分析】句意：上周他到北京旅行了，他在故宫所看到的给他留下了深刻的印象。

分析句子结构可知，连词and后为一个名词性从句，因此应该使用what引导，且what在从句中作主语，故选C。

【点评】考查名词性从句，本题涉及what引导的主语从句。

2．While some behaviors may seem strange to you, remember you consider normal probably seems just as unusual to others.A. it; thatB. what; thatC. that; whatD. which; that【答案】 C【解析】【分析】句意：虽然有些行为对你来说可能很奇怪，但请记住，你认为正常的行为对别人来说可能也不寻常。

第一空为宾语从句，从句结构完整用that起连接作用，第二空为主语从句，从句中consider缺少宾语，应该用what，故选C。

【点评】考查名词性从句，本题涉及that引导的宾语从句和what引导的主语从句。

3．It has been pointed out ________ plays a vital role in driving away one's anxiety is one's sweet childhood memories.A. what thatB. whichC. thatD. that what【答案】 D【解析】【分析】句意：有人指出，驱除焦虑所起着至关重要的作用是童年美好的回忆。

最新英语名词性从句常见题型及答题技巧及练习题(含答案)一、初中英语名词性从句1．We believe ________ you have been devoted to ________ naturally of great necessity.A. that; beingB. all that; beC. that all; areD. what; is【答案】 D【解析】【分析】句意：我们相信你所投入的当然是非常必要的。

分析句子可知，believe 后接宾语从句，宾语从句中you have been devoted to缺少宾语，表示事物故用what；what you have been devoted to为主语，从句作主语，谓语动词用单数，故选D。

【点评】考查名词性从句和主谓一致，本题涉及what引导的主语从句和一般现在时。

2． is clear to the members of the committee is that the President will not give in to their demands.A. WhoB. ItC. AsD. What【答案】 D【解析】【分析】句意：委员会成员清楚的是，总统不会向他们的要求让步。

that the President will not give in to their demands.这个句子作表语； is clear to the members of the committee这是主语从句，这里缺少主语从句的连接词，并且连接词在句中作主语，it是代词，不是了；连接词，故排除B；as作主语时，是在定语从句中，故排除C；who指人，根据表语指的事情，不是人，故排除A；what在主语从句中可以作主语或宾语，指事，符合句意，故选D。

【点评】考查名词性从句，本题涉及what引导的主语从句。

3．It________that the road will be closed tomorrow for repairs.A. was announcedB. has been announcedC. had been announcedD. would be announced【答案】 B【解析】【分析】本题考查动词的时态和语态。

【英语】英语名词性从句常见题型及答题技巧及练习题(含答案)含解析一、初中英语名词性从句1．________ is the centre of our planetary system was a difficult concept to grasp in the Middle Ages.A. It's the sun and not the earthB. The sun and not the earthC. Being the sun and not the earthD. That the sun and not the earth【答案】 D【解析】【分析】句意：太阳而不是地球是我们行星系统的中心，这在中世纪是一个很难理解的概念。

分析句子可知，整个句子为主系表结构，was为系动词，它之前的都为主语，且主语由句子来充当，句子结构以及句意完整，所以连词代词为that。

故选D。

【点评】考查名词性从句，本题涉及that引导的主语从句。

2．It has been pointed out ________ plays a vital role in driving away one's anxiety is one's sweet childhood memories.A. what thatB. whichC. thatD. that what【答案】 D【解析】【分析】句意：有人指出，驱除焦虑所起着至关重要的作用是童年美好的回忆。

本句时一个主语从句，it作形式主语，真正的主语为that what plays a vital role in driving away one's anxiety is one's sweet childhood memories.，主语从句中又有一个主语从句，且此主语从句中缺少主语，所以用what引导。

故选D。

【点评】考查名词性从句，本题涉及what引导的主语从句。

【英语】中考英语名词试题(有答案和解析)含解析一、初中英语名词1．—Mr.Li,I feel a little nervous before the coming exam.—You'd better take a break from studies and relax yourself.A.restB.breathC.walk【答案】A【解析】【分析】句意： ---李老师，考试前我感觉有点紧张。

---你最好从学习中休息一下，放松自己。

break中断；休息；rest休息；breath呼吸；walk步行。

故答案为A。

【点评】考查词义辨析，理解句意，弄清划线的单词和备选项的意思，即可得出答案。

2．---_______fathers didn't come to the meeting.Why?---Because they have gone to Beijing.A.Jeff's and Amy'sB.Jeff and AmyC.Jeff's and AmyD.Jeff and Amy's 【答案】A【解析】【分析】句意:一一杰夫和艾米的父亲没有来开会。

为什么?一一因为他们去北京了。

当两个人共同拥有同一个人或物时，只在最一个人后加所有格符号;当两个人拥有同类事物中的不同个体时，都要加所有格符号。

本题中fathers是复数，说明两人父亲不同，两人都得加所有格符号，故选A。

3．—What would you like to eat?—Some_________,please.A.breadB.cakeC.coffeeD.tea【答案】A【解析】【分析】句意：——你想要吃什么？——请来一些面包。

bread面包；cake蛋糕；coffee咖啡；tea茶；根据What would you like to eat?可知此处介绍吃的食物，有some修饰，故此处用bread或cakes，故选A。

（英语）英语名词性从句解题技巧(超强)及练习题(含答案)及解析一、初中英语名词性从句1．Exactly _________ the potato was introduced into Europe is uncertain, but it was probably around 1565.A. whetherB. whenC. whyD. how【答案】 B【解析】【分析】句意：土豆被引进欧洲具体的事件不被确定，但是可能是在1565年左右。

根据时间状语round 1565得知这里是指时间不确定。

故选B。

【点评】考查名词性从句，本题涉及when引导的主语从句。

2．_____ is known to us all is that China has launched Shenzhou VII spaceship, ____ made the country's first spacewalk successful.A. That; whatB. What; whichC. It; whichD. As; that【答案】 B【解析】【分析】句意：众所周知，中国已经发射了神州7号宇宙飞船，这是中国首次成功的太空行走。

第一空处为主语从句，从句缺少主语，需用what引导；第二空所在句子是个定语从句，先行词为整个主句的内容，从句中缺少主语，需用which引导。

故选B。

【点评】考查名词性从句和定语从句，本题涉及主语从句和非限制性定语从句的应用。

3．While some behaviors may seem strange to you, remember you consider normal probably seems just as unusual to others.A. it; thatB. what; thatC. that; whatD. which; that【答案】 C【解析】【分析】句意：虽然有些行为对你来说可能很奇怪，但请记住，你认为正常的行为对别人来说可能也不寻常。

初中语法讲解名词及练名词习题（含答案）一、名词的分类：名词分为专有名词和普通名词。

1、专有名词：个人，地方,机构等专有名称，如：China, Shanghai, Li lei 等。

专有名词的首字母通常要大写。

具体说来，它包括人名、地名、月份、星期、节日、书名、电影名以及某些抽象名词等。

如：Jim吉姆China中国July七Friday 星期五Christmas 圣诞节English 英语2、普通名词：指表示一类人或东西或抽象概念的名词。

1）个体名词：某类人或东西中的个体，如fighter, gun, country，cup, desk, student等。

一般可数，有单复数形式。

2）集体名词：若干个体组成的集合体，如family, team, police, class等。

一般可数，有单复数形式3）物质名词：无法分为个体的实物，如cotton，tea, air等。

一般不可数，没有单复数之分。

4）抽象名词：动作, 状态, 品质, 感情等抽象概念. 如health, happiness，love, work, life等。

一般不可数，没有单复数之分。

二、名词的数：可数名词都有单数和复数之分；不可数名词没有复数形式。

【重点】1、规则的可数名词的复数变化规则：1）一般情况加–s ：books，mouths，houses，girls等。

2）以s，sh，ch，x结尾的加–es：classes，boxes，matches 等。

3）辅音字母+ y结尾的变y为ies：cities，countries，parties，factories等。

4）以o 结尾的词+es：heroes，Negroes，tomatoes，potatoes等。

以o 结尾+s：radios，zoos，bamboos，pianos，kilos，photos 等。

5）以f，fe 结尾的多数+es：leaves，lives，wives，knives，halves，wolves等。

【英语】中考英语名词真题汇编(含答案)及解析一、初中英语名词1．I'd like some________and________.A.banana;tomatoB.bananas;tomatoC.bananas;tomatoesD.banana;tomatoes 【答案】C【解析】【分析】句意：我想要一些香蕉和西红柿。

banana和tomato都是可数名词，some后接复数形式，因此是bananas和tomatoes，故选C。

【点评】此题考查名词复数。

注意some后跟可数名词复数。

2．—Look,the boss is very angry with Alex.—Well,he came late again.But that's no______to shout at him.A.problemB.lessonC.excuseD.reason【答案】C【解析】【分析】句意：——看，老板非常生亚历克斯的气。

——哦，他又来晚了。

但是没有理由冲他大喊。

problem没问题；lesson课；excuse理由；reason原因。

根据but可知此处表示转折，就是他来晚了，也没有理由对他大喊，故选C。

【点评】此题考查名词的辨析，注意识记意义相近的名词。

3．Frank is a friend of________.He is a scientist from Canada.A.myB.IC.meD.mine【答案】D【解析】【分析】句意：Frank是我的朋友中的一个，他是来自加拿大的科学家。

A my，我的，所有格；B我，主语；C我，宾格；D我的，名词性物主代词；of+物主代词，双重所有格，因此用名词性物主代词mine，a friend of mine，我的朋友，故选D。

【点评】考查动词辨析，注意双重所有格的用法。

4．—_________is coming.What can I get for my mother?—What about a scarf?A.Women's DayB.Woman's DayC.Womens'Day【答案】A【解析】【分析】句意：——妇女节要来了，我该为妈妈买什么呢？——条围巾怎么样？“妇女节”指的是妇女们的节日。

（英语）初中英语名词试题(有答案和解析)含解析一、初中英语名词1．（•昆明）Emily got the first place in the Spelling Bee. We all admire her spelling ability.A. a competition to spell wordsB. a competition to give speechesC. a competition to tell storiesD. a competition to sing songs【答案】 A【解析】【分析】句意：艾米莉在拼写大赛中得了第一。

我们都钦佩她的拼写能力。

A. a competition to spell words拼写单词的比赛；B. a competition to give speeches作演讲的比赛；C. a competition to tell stories讲故事的比赛；D. a competition to sing songs唱歌的比赛。

The Spelling Bee展示人们的拼写能力，是拼写词汇的比赛。

故选A。

【点评】考查与画线部分意思相同的短语，找到关键词判断合适的选项。

2．I like this song. It's by one of my favorite_________.A. singersB. dancersC. paintersD. writers【答案】 A【解析】【分析】句意：我喜欢这首歌。

这是我最喜欢的歌手之一唱的。

A：singers歌手； B： dancers舞蹈演员； C： painters画家； D： writers作家。

根据上句 I like this song. 可知一定是歌手唱的，故选A。

【点评】考查名词辨析。

理解选项意思，根据语境选择正确的名词。

3．——I'm hungry. May I have something to eat? ——OK. Here's some ________.A. orangeB. breadC. waterD. milk【答案】 B【解析】【点评】句意：——我饿了。

最新初中英语名词性从句常见题型及答题技巧及练习题(含答案)一、初中英语名词性从句1．_________ is known to all is that the earth is smaller than the sun.A. AsB. WhatC. ItD. Which【答案】 B【解析】【分析】句意：众所周知，地球比太阳还小。

复合句的主语是一个名词性从句，从句没有引导词和主语，表示“所……的（事）”，故用what引导，其双重作用，故选B。

【点评】考查名词性从句，本题涉及what引导的主语从句。

2．___ surprised me most was ____the girl passed the driver test.A. That; thatB. What; howC. What; thatD. That; why 【答案】 C【解析】【分析】句意：最让我吃惊的是那个女孩通过了驾驶考试。

___ surprised me most是一个主语从句，从句中缺少主语，故填what；____the girl passed the driver test是一个表语从句，句中不缺少成分，故填that。

因此选C。

【点评】考查名词性从句，本题涉及what引导的主语从句和that引导的表语从句。

3．Some people believe _______ has happened before or is happening now will repeat itself inthe future.A. whateverB. wheneverC. whereverD. no matter what 【答案】 A【解析】【分析】句意：一些人认为之前发生的或现在正在发生的任何事情在将来都会重复发生。

Whatever has happened before or is happening now是一个主语从句，whatever既引导起这个主语从句，也在句中做主语。

初中英语名词技巧(很有用)及练习题一、初中英语名词1．（·鄂州）—The dishes in this restaurant must be very expensive.—Don't worry. You can enjoy yourself. It's my _________.A. timeB. treatC. taskD. taste【答案】 B【解析】【分析】句意：——餐馆里的菜一定非常贵。

——别担心，你可以随便吃，我请客。

It's my treat.我请客。

故选B。

【点评】考查名词辨析。

2．—Are you sure this is a photo , the famous comedy actress?—It surprised you, didn't it? But she was once really thin.A. Jia LingB. Jia Ling'sC. of Jia LingD. of Jia Ling's【答案】 C【解析】【分析】考查名词所有格。

句意：—你肯定这是著名喜剧演员贾玲的一张相片吗？—使你吃惊，是不是？但是她曾经真的很瘦。

一张……的相片：a photo of sb（指照片上拍摄的是某人）；a photo of one's（指照片是某人的摄影作品）。

本题是指照片上是贾玲。

故选C。

3．There's little left at home. Go and buy some, dear.A. carrotsB. potatoesC. rice【答案】 C【解析】【分析】考查名词辨析。

句意：家里剩的马铃薯不多了，去买一些吧。

A. carrots 胡萝卜；B. potatoes马铃薯；C. rice大米。

因为空格前有little，它修饰不可数名词，rice 是不可数名词，故选C。

4．I am hungry. I'd like to have some ______.A. riceB. sandwichC. dumplingD. egg【答案】 A【解析】【分析】句意：我饿了。

【英语】初中英语名词专项训练100(附答案)及解析一、初中英语名词1．（•广西百色）You must go to the ________ if you want to buy vegetables.A. supermarketB. libraryC. theatreD. bookshop【答案】 A【解析】【分析】句意：如果你想要买蔬菜，你必须去超市。

A.超市;B.图书馆;C.剧院;D.书店。

选项中只有超市有蔬菜买卖。

故选A。

2．There's little left at home. Go and buy some, dear.A. carrotsB. potatoesC. rice【答案】 C【解析】【分析】考查名词辨析。

句意：家里剩的马铃薯不多了，去买一些吧。

A. carrots 胡萝卜；B. potatoes马铃薯；C. rice大米。

因为空格前有little，它修饰不可数名词，rice 是不可数名词，故选C。

3．—Look, the boss is very angry with Alex.—Well, he came late again. But that's no ______ to shout at him.A. problemB. lessonC. excuseD. reason【答案】 C【解析】【分析】句意：——看，老板非常生亚历克斯的气。

——哦，他又来晚了。

但是没有理由冲他大喊。

problem没问题；lesson课；excuse理由；reason原因。

根据but可知此处表示转折，就是他来晚了，也没有理由对他大喊，故选C。

【点评】此题考查名词的辨析，注意识记意义相近的名词。

4．—______ are you in?—I am in Class One.A. Which schoolB. What classC. Which grade【答案】 B【解析】【分析】句意：——你在哪一个班？——我在一班。

英语名词性从句常见题型及答题技巧及练习题(含答案)及解析一、初中英语名词性从句1．______ makes the school proud is ______ more than 90% of the students have been admitted to universities.A. what; becauseB. that; becauseC. that; whatD. what; that 【答案】 D【解析】【分析】句意：让学校骄傲的是，超过90%的学生被重点大学所录取。

第一空主语从句中缺少主语，指代事情，故用what;第二空为表语从句，且从句中不缺少成分，故填关系词that。

故选D。

【点评】考查名词性从句，本题涉及what引导的主语从句和that引导的表语从句。

2．Some people believe _______ has happened before or is happening now will repeat itself inthe future.A. whateverB. wheneverC. whereverD. no matter what 【答案】 A【解析】【分析】句意：一些人认为之前发生的或现在正在发生的任何事情在将来都会重复发生。

Whatever has happened before or is happening now是一个主语从句，whatever既引导起这个主语从句，也在句中做主语。

BC项都属于副词的性质，都不能做主语，通常只能做状语；no matter what只能用来引导状语从句，故选A。

【点评】考查名词性从句，本题涉及"特殊疑问词+ever"引导的主语从句。

3． is even more important is the earth cooled down, water began to appear on its surface.A. When; that; whenB. What; whether; asC. What; that; asD. lt; whether; as 【答案】 C【解析】【分析】这题考查从句的用法，第一空填what引导主语从句，在主语从句中what做主语，第二空填that引导表语从句，在表语从句中，as是引导时间状语从句，句意是：甚至更重要的是：随着地球的冷却，水开始出现在表面。

初中英语语法名词篇(附习题和答案)中考英语语法（名词篇）语法总述：词类、句子成分和构词法：1、词类：名词、形容词、代词、数词、冠词、动词、副词、介词、连词、感叹词。

1、名词(n.)：表示人、事物、地点或抽象概念的名称。

如：boy, morning, ball, class, orange, clock,合成名词：8-year-olds, groun-ups, passers-by, e-mail,2、代词(pron.)：主要用来代替名词。

如：who, she, you, it .3、形容词(adj..)：表示人或事物的性质或特征。

如：good, right, white, orange, ugly, sweet, far,合成形容词：8-year-old, hard-working,4、数词(num.)：透露表现数量或事物的按次。

基数词：one, two, three, hundred,序数词：first, second, third,量词：a piece of, two bottles of, three basket of, four bowls of, five cups of, six pairs of,5、动词(v.)：透露表现举措或状况。

系词：am, is,are,半系词：look, sound, feel, get, become, keep, stay, taste, smell, turn,实意动词：have, see , think, beat, walk,助动词：辅佐动词构成否认、疑问等语气，辅佐工具构成时态语态等。

如：be, do, does, did, will, can,should, may,6、副词(adv.)：修饰动词、形容词或其他副词,说明时间、地点、程度等。

如：now, here, often, quietly, slowly, home,upstairs, hard, very, really,7、冠词(art..)：用在名词前,匡助申明名词。

（英语）英语名词性从句常见题型及答题技巧及练习题(含答案)含解析一、初中英语名词性从句1．_________ is known to all is that the earth is smaller than the sun.A. AsB. WhatC. ItD. Which【答案】 B【解析】【分析】句意：众所周知，地球比太阳还小。

复合句的主语是一个名词性从句，从句没有引导词和主语，表示“所……的（事）”，故用what引导，其双重作用，故选B。

【点评】考查名词性从句，本题涉及what引导的主语从句。

2．________ is known to us all that the old scientist, for ________ life was hard in the past, still works hard in his eighties.A. As; whoseB. It; whoseC. As; whomD. It; whom【答案】 D【解析】【分析】句意：我们都知道，那位老科学家，过去生活很艰苦，到了八十多岁还在努力工作。

第一空it is known to us all that…是个固定句型，意为“众所周知…”；第二空为介词+关系代词引导的定语从句，先行词the old scientist指人，作介词for的宾语，只能用whom，故选D。

【点评】考查名词性从句和定语从句，本题涉及固定句式it is known to us all that…和whom引导的限制性定语从句。

3． is even more important is the earth cooled down, water began to appear on its surface.A. When; that; whenB. What; whether; asC. What; that; asD. lt; whether; as 【答案】 C【解析】【分析】这题考查从句的用法，第一空填what引导主语从句，在主语从句中what做主语，第二空填that引导表语从句，在表语从句中，as是引导时间状语从句，句意是：甚至更重要的是：随着地球的冷却，水开始出现在表面。