名词易错题
名词易错题
一、初中英语名词
1．The New Silk Road will offer a good _____ for more nations to communicate．
A. chance
B. habit
C. question
D. price
【答案】 A
【解析】【分析】新丝绸之路将会给更多国家提供交流的好机会。根据各个选项的意思chance"机会"；habit"习惯，习性"；question"问题"；price"价格"，根据语境可知新丝绸之路将会给更多国家提供交流的好……对照选项的意思可推知提供一个好机会，故填入chance，故选A。
2．Did you hear the ________? A scientist will visit our school.
A. advice
B. news
C. praise
D. choice
【答案】B
【解析】【分析】句意：你听说这个消息了吗？一位科学家将要拜访我们的学校。A. advice意见； B. news新闻，消息，不可数；C. praise表扬，赞扬；D. choice 选择，抉择。根据语境，A scientist will visit our school.是一个消息，故答案选B。
【点评】考查名词辨析；注意理解选项的意思，根据语境选择合适意义的词。
3．（?云南）You are supposed to be more careful to make fewer while you are writing.
A. trouble
B. matter
C. mistakes
D. problems
【答案】 C
【解析】【分析】句意：你写的时候应该更仔细，少犯错。A. trouble麻烦，烦恼；B. matter事情，麻烦事；C. mistakes错误；D. problems问题，难题。fewer修饰可数名词的复数形式，A、B错。make mistakes犯错；make problems制造麻烦。根据语境，书写时“犯错”，故选C。
4．（?贵州遵义）.A: Can I help you, madam? B: I want_ .
A. two boxes of apple
B. two glass of water
C. two bowls of porridge
【答案】 C
【解析】【分析】句意:一我可以帮助你吗?夫人?一我要两碗粥。A . two boxes of apple 两箱苹果，apple是可数名词，两箱苹果，该用复数，错;B. two glass of water 两杯水，glass 杯子，是可数名词，两杯，要用复数形式，错; C. two bowls of porridge两碗粥，porridge是
不可数名词，没有复数形式，正确。故选C。
5．—What else do we need to make cold beef?
— .
A. Two spoons salt
B. Two spoons of salts
C. Two spoons of salt
【答案】 C
【解析】【分析】句意：——我们还需要什么来做冷牛肉呢？——两勺盐。答语中的salt 为不可数名词。没有复数形式。a spoon of一勺，表示两勺……时，用two spoons of…。故选C。
【点评】此题考查不可数名词。注意不可数名词数量的表达方式。
6．—Whose dog is this？—It's. Both of like it very much.
A. Eric's and Mike's； them
B. Eric and Mike's； them
C. Eric and Mike's； they
D. Eric's and Mike's； they
【答案】 B
【解析】【分析】句意:一这是谁的狗?一它是埃里克和迈克的，他们两个都非常喜欢它。在名词所有格中，表示两个人各自所有的两个东西，则应在两个名词后面分别加上's；若表示两个人共同拥有的一个东西，则只能在后面那个名词后面加上's，就有一只狗，可知是两个人共同所有。介词后加人称代词的宾格。they;他们，主格;them.宾格。故选B。
7．______ honest man he is!
A. What
B. What an
C. How
D. How an
【答案】 B
【解析】【分析】句意：他是一个多么诚实的人！根据honest man 诚实的人，可知需要填an表一个，因为honest是元音开头。man是可数名词。What 修饰名词，How修饰形容词、副词。What an honest man he is! 相当于How honest the man is! 故选B。
【点评】考查感叹句的用法。
8．—Michael, how much do you know about _________?
—people usually eat rice dumplings to remember Qu Yuan.
A. the Mid-Autumn Festival
B. the Spring Festival
C. the Dragon Boat Festival
D. the Lantern Festival
【答案】C
【解析】【分析】句意：——米切尔，关于端午节你知道多少？——人们为了纪念屈原，经常吃粽子。the Mid-Autumn Festival 中秋节；the Spring Festival春节；the Dragon Boat Festival 端午节；the Lantern Festival元宵节。根据people usually eat rice dumplings to remember Qu Yuan可知纪念屈原，吃粽子是端午节的习俗，故选C。
【点评】考查专用名词，根据答语所描述的活动和特色，选择合适的节日名词。
9．—How far is it from Chongqing to Guiyang?
—It's about two ______ ride by high-speed train.
A. hour
B. hour's
C. hours
D. hours'
【答案】 D
【解析】【分析】句意：——从重庆到贵阳有多远？——坐高铁大约两小时的路程。根据two只能只能用复数，排除A和B，而再由名词ride知道应该用所有格来修饰，排除C。故选D。
【点评】考查名词所有格作定语。
10．（?广西百色）You must go to the ________ if you want to buy vegetables.
A. supermarket
B. library
C. theatre
D. 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。
11．—There are many _____ about this farm.
—Yes, lots of _____ are planted on it.
A. photo; potato
B. photos; potatos
C. photos; potatoes
D. photoes; potatoes 【答案】 C
【解析】【分析】句意：—有许多关于这个农场的照片。—是的，许多的土豆种在农场上。many和lots of修饰可数名词复数，photo 的复数是photos，potato的复数是potatoes，故答案为C。
【点评】考查可数的复数形式。牢记名词的复数的变化规律和一些特殊的名词复数。
12．—What was the _______ of the football match last night?
— AC Milan won the game.
A. value
B. result
C. choice
D. decision
【答案】 B
【解析】【分析】句意：---昨天晚上的足球赛的结果是什么？---AC米兰队赢了。value价值；result结果；choice选择；decision决定。根据句意可知，比赛所涉及的当然是结果，故答案为B。
【点评】考查名词词义辨析，熟记单词，理解句意，注意基本逻辑。
13．—Are you going out with Jade tonight?
—That's my . Mind your own!
A. offer
B. business
C. question
D. chance
【答案】 B
【解析】【分析】句意：——今天晚上你要和简一块出去吗？——那是我的事，管好你自己的事！offer提供； business商业; question问题；chance机会。That's my business那是我的事。故选B。
【点评】本题考查名词词义辨析。以及offer；business; question；chance四个词的词义和用法。
14．—______ are you in?
—I am in Class One.
A. Which school
B. What class
C. Which grade
【答案】 B
【解析】【分析】句意：——你在哪一个班？——我在一班。A. Which school哪所学校；B. What class什么班，哪一个班；C. Which grade哪一个年级。答语是“I am in Class One.”我在一班，可以推测出前句问的是班级，故选B。
15．Upstairs are bedrooms. They are tidy and nice. But are in a mess.
A. Lily's and Lucy's; our
B. Lily's and Lucy's; ours
C. Lily's and Lucy; ours
D. Lily and Lucy's; our
【答案】 B
【解析】【分析】句意：楼上是利莉莉的和露西的卧室，他们整洁又好看，但是我们的一团糟。根据they，可知莉莉和露西每人有一个卧室，因此两个词都应使用所有格，故排除CD；第二空后面没有名词出现，应使用名词性物主代词，ours，我们的，故答案是B。【点评】考查名词所有格和名词性物主代词，注意当两个人分别拥有某个东西时，两个词都应使用所有格形式，如果物主代词后没有名词出现，应使用名词性物主代词。
16．I am hungry. I'd like to have some ______.
A. rice
B. sandwich
C. dumpling
D. egg
【答案】 A
【解析】【分析】句意：我饿了。我想吃点米饭。此处有some 修饰，后面应该是复数名词或不可数名词。sandwich,dumpling和egg都可数，应该为复数，rice不可数，故答案为A。
【点评】考查不定代词some修饰可数名词复数或不可数名词。
17．—Are you thirsty?
—Yes, please give us _______.
A. three bottle water
B. three bottle of water
C. three bottles of water
D. three bottles of waters
【答案】 C
【解析】【分析】句意：——你们口渴吗？——是的，请给我们三瓶水。water不可数名词，不可数名词的数量可以用适当的量词作单位来表示, 结构为“数词+量词+ of +不可数名词”。bottle是可数名词，所以三瓶水为three bottles of water，故选C。
【点评】考查不可数名词的复数，应体现在量词上。
18．Tigers like to eat _____________, but koalas like to eat____________.
A. meat , leaf
B. meats , leaf
C. meat , leaves
D. meats, leaves
【答案】C
【解析】【分析】句意老虎喜欢吃肉，但是考拉喜欢吃树叶。Meat是不可数名词，leaf是可数名词，且复数形式是leaves，故选C。
19．Jim broke a pair of shoes made of ________ in a ________store yesterday.
A. glass; woman
B. glasses; woman
C. glass; women's
D. glasses; women's 【答案】 C
【解析】【分析】句意：昨天在妇女用品店，吉姆打坏了一双玻璃鞋。根据be made of，由……制成，可知后面跟鞋子的材料glass，玻璃，不可数名词；女士用品店，用名词所有格，在名词后面加's，表示泛指，所有女士，因此用名词复数形式women，women's store，故选C。
【点评】考查名词辨析，注意glass是玻璃的意思，glasses是眼镜的意思。
20．A good way to break the of eating too quickly is to put knife and fork down after each mouthful.
A. custom
B. tradition
C. habit
D. practice
【答案】 C
【解析】【分析】句意：打破吃得太快的习惯的好方法就是每吃一口就放下刀和叉。custom，风俗习惯；tradition，传统；habit，个人习惯；practice，惯例。根据文中的语句eating too quickly 是一种习惯，故选C。
【点评】考查名词辨析。熟知每个选项的基本含义，根据语境确定最适合的选项。
21．—After walking, I feel very thirsty now.
—Let's go and buy some_____ to drink.
A. bread
B. noodles
C. orange
D. teas
【答案】 C
【解析】【分析】句意：——散步后，我现在感到很渴。——让我们去买一些桔汁来喝。
A.bread面包，
B.noodles面条，
C.orange桔汁，
D.teas茶。根据句子出现了drink，可知空缺的意义为饮料，填入orange，故选C。
【点评】考查名词辨析，注意orange的用法。
22．Those are my______ clothes
A. children'
B. children's
C. parents's
D. parents
【答案】 B
【解析】【分析】这题考查名词所有格的用法，名词所有格一般是在名词后面加's，如果名词是以s结尾，一般加’。所以只能选B。
23．— Archimedes was really a wise man. He could easily ________ the king's problem.
— Yes, so he was. And he was also a great scientist who had a lot of ________.
A. reduce; adventures
B. beat; decisions
C. solve; achievements
【答案】 C
【解析】【分析】句意：——阿基米德真是个聪明人。他可以轻易地……国王的问题。——是的，确实很聪明，他也是一个有着很多……的伟大科学家。A.减少；冒险。B.打败；决定。 C.解决；成就。结合句意选C。
【点评】考查动词和名词词义。
24．Mr. Brown is a friend of ________. They often talk with each other on the Internet. A. my father B. my fathers C. my father's D. my fathers'
【答案】 C
【解析】【分析】句意：Brown先生是我父亲的一个朋友，他们经常在互联网上互相聊天。根据句意，我爸爸的一个朋友，用名词所有格，my father's，我父亲的，a friend of my father's，双重所有格形式，表示我父亲的……，故应选C。
【点评】本题主要是名词所有格的应用，掌握所有格的正确形式很重要
25．（?江西）Some old people need a because they feel lonely.
A. gift
B. stick
C. pet
D. watch
【答案】 C
【解析】【分析】考查名词词义辨析。句意：因为一些老人感觉孤单，所以需要有宠物陪伴。A. gift礼物；B. stick棍子； C. pet 宠物；D. watch手表。根据常识可知，这里指老人需要的是宠物。故选C。
26．He is a person, so whatever he does, he is always full of hope and sure of success, and he won't give up without a fight.
A. brave
B. confident
C. realistic
D. reasonable
【答案】 B
【解析】【分析】句意：他是一个自信的人，因此不管他做什么，他都是充满希望和确信
会成功，并且不会不拼搏就放弃。A 勇敢的；B 自信的；C 现实的；D 合理的。根据下文语句 he is always full of hope and sure of success, 可知，此句指的是自信，故选B。
【点评】考查形容词辨析。熟知每个选项的基本含义，根据语境确定最符合句意的选项。
27．（.山东临沂）I live near the station, It‘s only about five ________ walk.
A. minute’s
B. minute
C. minutes’
D. minutes
【答案】 C
【解析】【分析】句意:我住在车站附近。只有大约步行五分钟的路程。英语中基数词+时间词的所有格+交通方式，可以表示用这种交通方式需要多长时间。时间词根据基数词不同而进行单复数变化。本题中minute应该用复数形式，后面加s；故变为所有格时后面只加'即可。选C。
28．—The river is becoming dirtier because the steel factory has put waste into it.
—Yes. We must take action to improve the .
A. condition
B. pollution
C. position
D. situation
【答案】 D
【解析】【分析】句意：这条河变得更脏了，因为钢铁厂把废物排放到了河里。是的，我们必须采取行动来改善这种情况。condition”条件，身体状况“；pollution”污染“；position”位置“；situation”情况，情形“。这里的situation指的是The river is becoming dirtier，故应选D。
【点评】考查名词辨析，区分condition，pollution，position，situation的含义。
29．——It's reported that many people were hurt in Kunming Terrorist Attacks （恐怖事件）on March 1st.
——_______ bad news!
A. What
B. How
C. What a
D. How a
【答案】A
【解析】【分析】句意：据报道在3月1日的恐怖事件中有很多人受伤了。真是个坏消息！英语感叹句可用what和how引导，结构为what+a+形容词+可数名词单数（+主谓）/ what+形容词+不可数名词（+主谓）；how+形容词+主谓；结合题意故选A。
【点评】考查感叹句。
30．一 What do you want to do as your future career?
一 I'd like to be an astronaut, but I think it is very difficult.
A. life
B. hobby
C. job
【答案】 C
【解析】【分析】句意：——你想做什么当作你未来的职业？——我想当宇航员，但是我
认为那很困难。career职业；life生命；hobby爱好；job工作。故选C。
【点评】考查名词辨析。
31．—What would you like to drink, girls?
—________， please.
A. Two glass of water
B. Two glass of waters
C. Two cups of tea
D. Two cups of teas
【答案】 C
【解析】【分析】句意：女孩们，你们想喝些什么？——两杯茶。glass和cup是可数名词，两杯应用复数形式，因此A、B错误；tea是不可数名词，没有复数，故选C。
【点评】考查名词辨析，区分glass、cup、tea的用法。
32．_______ the teachers in their school is about 200 and one fourth of them are _______ teachers.
A. A number of; women
B. A number of; woman
C. The number of; women
D. The number of; woman
【答案】 C
【解析】【分析】句意:我们学校老师的数量是大约200个，其中有四分之一是女老师。a number of 很多，大量；the number of …的数目。根据句意可知，第一个空说的是学校里老师的数目，故排除A和B；女老师是woman teacher，当是复数形式的时候，两个词都变复数。故选C。
【点评】考查名词短语。
33．（·黑龙江）— How far is your home from school?
— About ______ walk.
A. five minute's
B. five minutes'
C. five minutes
【答案】 B
【解析】【分析】句意：－你家离学校多远？－大约五分钟的路。五分钟：five minutes；五分钟的：five minutes'（以s结尾的名词的所有格，在s的右上角加'）。故选B。
【点评】本题考查时间、天气、距离名词的所有格。名词复数所有格以s结尾的名词的所有格，在s的右上角加'
34．Jack is a good friend , and he often comes to our home for a visit.
A. of my father
B. of my father's
C. for my father
D. in my father's
【答案】 B
【解析】【分析】句意：Jack是我爸爸的一个好朋友，他经常来拜访我们家。表示爸爸的
朋友，用双重所有格，即of 所有格与's所有格相结合，表示所有关系，故选B。
【点评】考查双重所有格。注意双重所有格是将of所有格与's所有格相结合在一起表示所有关系。
35．Hilary came back full of after her vacation, which seemed to be relaxing and refreshing.
A. energy
B. strength
C. power
D. experiences
【答案】 A
【解析】【分析】句意为：Hilary假期回来之后充满精力，看起来似乎是很放松和焕然一新。A 能量；B 力气；C 权力；D 经验。根据题干中的which seemed to be relaxing and refreshing.可知，此处指的是能量，故选A。
【点评】考查名词辨析。熟知每个名词的基本含义，根据语境确定最符合句意的选项。
中考英语单选易错题(教师版)
九年级单项选择专练 C1. --- ____ do you study for a test? --- I study by listening to tapes. A. What B. Which C. How D. Where B2. I _____ really quiet. Now I’m very outgoing. A. use to be B. used to be C. use to D. used to A3. Ann ____ to choose her own clothes, but she isn’t allowed to get her ear pierced穿耳洞yet. A. is allowed B. allow C. allowed D. is allowing D4. ---What ___ you do if you had a million dollars? --- I’d give it to charity. A. will B. did C. were D. Would ①提出将来会发生的事：主句：主语＋would/should/might/could＋动词原形 从句：if+should＋动词原形/were to＋动词原形 eg. If he should go to Harvard University, he would make full use of his time. 如果他要上哈佛大学的话，他就会充分利用他的时间了。 ②提出现在的条件：主句：主语＋would/should/might/could＋动词原形 从句：if+动词过去式 eg. If he studied at this school, he would know the enviornment around the school very much. 如果他在这所学校学习的话，他会很了解周边环境。 ③提出过去的未发生的条件：主句：主语＋would/should/might/could have＋动词过去分词 从句：if+had＋动词过去分词 A5. --- Have you ever ____ another country? ---- Yes, I have. A. been to B. gone to C. be to D. went to B6. --- _____ would you like to go ? --- I’d like to go somewhere warm. A. Which B. where C. What D. How B7. He looks sad. Let’s ____ . A. to cheer him up B. cheer him up C. to cheer up him D. cheer up him C8. ----Jack,you look tired today. What’s wrong?
二次根式单元 易错题难题提高题检测
一、选择题 1．下列计算正确的是（ ） A = B ．2= C ．(2 6 = D == 2．,a ==b a 、b 可以表示为 （ ） A ． 10 a b + B ． 10 -b a C ． 10 ab D ． b a 3．) 5=（ ） A ．5+ B ．5+ C ．5+ D ．4．下列各式中，正确的是（ ） A 2=± B = C 3=- D 2= 5．下列各式计算正确的是（ ） A ．6 23 212 6()b a b a b a ---?= B ．（3xy ）2÷（xy ）=3xy C = D ．2x ?3x 5=6x 6 6．化简 ） A B C D 7．已知a 满足2018a -a ，则a －2 0182＝( ) A ．0 B ．1 C ．2 018 D ．2 019 8．如果a ，那么a 的取值范围是（ ） A ．a 0= B ．a 1= C ．a 1≤ D ．a=0a=1或 9．下列各式成立的是（ ） A 2 B 5=- C x D 6=- 10．2的结果是（ ） A ．±3 B ．﹣3 C ．3 D ．9 二、填空题 11．若m m 3﹣m 2﹣2017m +2015＝_____．
12．计算（π-3）02-2 11(223)-4 --22 --（） 的结果为_____． 13．设四边形ABCD 是边长为1的正方形，以对角线AC 为边作第二个正方形ACEF ，再以对角线AE 为边作第二个正方形AEGH ，如此下去……． ⑴记正方形ABCD 的边长为11a =，按上述方法所作的正方形的边长依次为 234,,,,n a a a a ，请求出234,,a a a 的值； ⑵根据以上规律写出n a 的表达式． 14．已知()230m m --≤，若整数a 满足52m a +=，则a =__________． 15．为了简洁、明确的表示一个正数的算术平方根，许多数学家进行了探索，期间经历了400余年，直至1637年法国数学家笛卡儿在他的《几何学》中开始使用“ ”表示算数平 方根．我国使用根号是由李善兰（1811-1882年）译西方数学书时引用的，她在《代数备旨》中把图1所示题目翻译为： 22164?a x a x +=则图2所示题目（字母代表正数）翻译为_____________，计算结果为_______________. 16．化简二次根式2a 1 a +- _____. 17．已知：5+2 2可用含x 2=_____． 18．已知实数m 、n 、p 满足等式 33352m n m n m n p m n p -+--+----，则p =__________． 19．4102541025-+++=_______．
外研版英语中考英语名词性从句易错题集锦-名师教育含答案解析
外研版英语中考英语名词性从句易错题集锦-名师教育含答案解析 一、初中英语名词性从句 1．They lost their way in the forest, and ___ made matters worse was that night began to fall. A. it B. which C. that D. what 【答案】 D 【解析】【分析】本题中含有一个主语从句what made matters worse，其中的what引导起这个主语从句，同时在主语从句中做主语。AC两项不能引导主语从句，which在引导名词性从句的时候总是含有疑问的语义，而本句中并没有疑问的语义。句意：他们在森林里迷路了，情况更糟糕的是天又黑了。故D正确。 2．_____ is known to us all is that China has launched Shenzhou VII spaceship, ____ made the country's first spacewalk successful. A. That; what B. What; which C. It; which D. 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．Exactly _________ the potato was introduced into Europe is uncertain, but it was probably around 1565. A. whether B. when C. why D. 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。 4．It matters little ______ a man dies, but _____ matters much is ______ he lives. A. how; what; how B. how; it; how C. why; it; why D. that; what; that 【答案】 A 【解析】【分析】句意：一个人如何死去并不重要，重要的是他如何生活。it为形式主语，how从句为真正的主语。What matters much （=the thing that matters much）。第一个how引导的是一个主语从句；it作形式主语；what引导的是主语从句；第二个how引导的是表语从句。故选A。
定语从句易错题
1. The factory was built in a secret place, around ______ high mountains. A. which was B. it was C. which were D. them were 解析:最佳答案是C，around which were high mountains 是一个由"介词+which"引出的非限制性定语从句，而在该从句中，主语是high mountains，around which 是表语，所以句子谓语应用复数were，而不是用单数was. 请做以下类例题目（答案均为C）： （1）Yesterday we visited a modern hospital, around _______ some fruit shops. A. which is B. it is C. which are D. them are （2）The murder happened in an old building, beside ______ the city police station. A. which are B. it is C. which is D. them are （3）Next month we'll move to a new building, next to _______ a nice restaurant where we can have Chinese food. A. which are B. it is C. which is D. them are 2. A man with a bleeding hand hurried in and asked, "Is there a hospital around ______ I can get some medicine for my wounded hand?" A. that B. which C. where D. what 【解析】最佳答案为C。以上语法分析并不算错，但问题是，照此分析，此句的意思即为：有没有这样一个医院，我在它的附近可以买药治我的手伤？这样的语境显然有点不合情理，因为人们通常是在医院里面治伤，而不是在医院附近治伤。此题选 C 的理由是：句中的around 不是介词，而是副词，意为"在附近"；其后的where 引导定语从句用以修饰其前的地点名词hospital，句意为：附近有没有一家医院，我可以去治我的手伤？ 3. _____ is known to everybody, the moon travels round the earth once every month. A. It B. As C. That D. What 解析：最佳答案是B。as 引导的是一个非限制性定语从句。 4. _______ is known to everybody that the moon travels round the earth once every month. A. It B. As C. That D. What 解析：此题答案选A，it 为形式主语，真正的主语是后面的that 从句。
中考英语单选各种难题易错题
中考英语单选各种难题易错题 A. What fine weather B. What a fine weather C. How a fine weather D. How fine a weather 解析：选A. 此题容易误选B. weather是不可数名词，前面不能有不定冠词。英语中经常考查的不可数名词有work, news, adivice, information等。 ( ) 2. Which is the way to the __________? A. shoe factory B. shoes factory C. shoe’s factory D. shoes’ factory 解析：选A. 此题极易误选B, C, D. 英语中名词单数可以修饰名词，如： an apple tree →two apple trees. 但注意 a man teacher→two men teachers。 ( ) 3. This class ________ now. Miss Gao teaches them。 A. are studying B. is studying C. be studying D. studying 解析：选A. 此题容易误选B. class, family, team等单词如果表示整体谓语就用单数，表示个体就用复数，从语境及其后面的代词them可以看出，class表示个体，故选择A。 ( ) 4. We will have a _________ holiday after the exam。 A. two month B. two-month C. two month’s D. two-months 解析：选择B 此题容易误选C, D. 在英语中数词中间用连字符号加名词单数，构成符合名词，在句中只能作定语，如果选择C, 需要把逗号放s后面。 ( ) 5. There is no enough ________ on the corner to put the table。 A. place B. room C. floor D. ground 解析：选B. 此题最容易误选A.。 room在句中是空间而非房间。句意：角落里没有摆桌子的空间了。 ( ) 6. We can have _____ blue sky if we create _____ less polluted world。(苏州2010) A. a; a B. a; the C. the; a D. the; the 解析：选A. 此题容易误选C, D. 根据句意：如果我们创造一个没有污染的世界，那么我们就用一个蓝色的天空。
人教版初中数学二次根式易错题汇编及答案
人教版初中数学二次根式易错题汇编及答案 一、选择题 1．下列各式中，运算正确的是（ ） A ．632a a a ÷= B ．325()a a = C ．= D = 【答案】D 【解析】 【分析】 利用同底数幂的除法、幂的乘方、二次根式的加法和二次根式的除法法则计算． 【详解】 解：A 、a 6÷a 3=a 3，故不对； B 、（a 3）2=a 6，故不对； C 、和不是同类二次根式，因而不能合并； D 、符合二次根式的除法法则，正确． 故选D ． 2．在实数范围内有意义，则a 的取值范围是（ ） A ．a≤﹣2 B ．a≥﹣2 C ．a ＜﹣2 D ．a ＞﹣2 【答案】B 【解析】 【分析】 在实数范围内有意义，则其被开方数大于等于0；易得a ＋2≥0，解不等式a ＋2≥0，即得答案. 【详解】 在实数范围内有意义， ∴a ＋2≥0，解得a ≥－2． 故选B. 【点睛】 本题是一道关于二次根式定义的题目，应熟练掌握二次根式有意义的条件； 3．已知实数a 满足2006a a -=，那么22006a -的值是（ ） A ．2005 B ．2006 C ．2007 D ．2008 【答案】C 【解析】 【分析】 先根据二次根式有意义的条件求出a 的取值范围，然后去绝对值符号化简，再两边平方求
出22006a -的值． 【详解】 ∵a-2007≥0， ∴a ≥2007， ∴2006a a -=可化为a 2006a -+=， 2006=， ∴a-2007=20062， ∴22006a -=2007． 故选C ． 【点睛】 本题考查了绝对值的意义、二次根式有意义的条件，求出a 的取值范围是解答本题的关键． 4．下列计算中，正确的是( ) A ．= B 1 b =(a ＞0，b ＞0) C = D ． =【答案】B 【解析】 【分析】 a≥0，b≥0 a≥0，b ＞0）进行计算即可． 【详解】 A 、 B 1b （a ＞0，b ＞0），故原题计算正确； C ，故原题计算错误； D 3 2
【英语】 名词性从句易错题
【英语】名词性从句易错题 一、名词性从句 1．________ manners are very important in every country is known to all，but the trouble is that different countries have different ideas about ________ good manners are. A. That; what B. That; that C. What; that D. What; what 【答案】 A 【解析】【分析】句意：众说周知，礼貌在每一个国家中都是非常重要的，但是麻烦是，不同的国家对于什么是良好的礼貌有着不同的认识。逗号前有两个谓语动词，一个是are，一个是is known，故是两句话，需填连词连接这两句话，根据句意可知，前面是主语从句，故填that，此处的that，只起连接作用不作任何成分。about是介词，其后是个句子故应填连词把这两句话连接起来，所缺词作are的表语，故填what。因此选A。 【点评】考查名词性从句，本题涉及that引导的主语从句和what引导的宾语从句。 2． is clear to the members of the committee is that the President will not give in to their demands. A. Who B. It C. As D. 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．Has it been announced ______? A. when are the planes to take off B. that are the planes to take off C. where are the planes to take off D. when the planes are to take off 【答案】 D 【解析】【分析】句意: 飞机什么时候起飞已经宣布了吗？此处是when引导的主语从句，且要用陈述句语序，故选D。 【点评】考查名词性从句，it作形式主语，关系副词when引导的从句作真正的主语。 4．--- made her ashamed of herself? --- the lowest mark in her class. A. What; Because she got B. Was it what; Getting C. What was it that; That she got D. What was it that; Get 【答案】 C 【解析】【分析】句意：——是什么让她对她自己感到羞愧？——是她获得了她班上的最
定语从句易错题讲解
定语从句易错题讲解 在历届高考试题中，对定语从句及相关从句的考试题，几乎是每年都有，出题角度变化无常，且定语从句的教学在中学英语教学中居十分重要的地位． 1. The factory __________ his mother works is in the east of the city. A. that B. which C. on which D. where 答案：D．关系副词where 在定语从句中作地点状语． 2. The place __________ interest ed me most was the Children’s Palace. A. which B. where C. what D. in which 答案：A．关系代词which代the place , 在定语从句中作主语，所以不能选B，D．如不用Ｔhe place 就选C，主语从句． ＊归纳：在学习定语从句时不要一看到表示地点的字眼就选where或in which等。 3. Please make a mark ________you don’t understand. A. where B. in which C. at which D. that 答案：A．where引导地点状语从句。 4. They talked of things and persons ________they remembered in the school. A. that B. \ C. whom D. both A and B 答案D先行词为things and persons 为人和事，只能用that ,因为作宾语，故可省。 5. All ________has to be done every day is to listen and to repeat what he does. A. that B. which C. whom D. he 答案A 先行词all 为不定代词，只能用that ,不能用which.此外还有先行词为 anything, everything, nothing, any ,little, one, few, much, none等，如： （1） The re isn’t much that I can do. （2） He is one of the few that can work it out in five minutes. 6. This is the biggest library ______ we have ever built in our university. A. which B. where C. that D. one 答案C 当先行词由形容词最高级或被形容词最高级修饰时用that. 7 This is the first place _______I’ve ever visited. A. where B. in which C. that D. which 答案C 当先行词为序数词或被序数词修饰时用that. 8. Is this the very museum ______ you visited the other day? A. which B. that C. what D. where 答案B 当先行词被the very, the only 等修饰时用that 9. She is wearing the same dress ______she wore yesterday. A. like B. as C. that D. which 答案C 当先行词被the same 修饰，且指“同一物品”时用that. 10. He is not the man _____ he was. A. what B. that C. as D. who 答案B 关系代词在定语从句中作表语时用that. 11. Which is the book ______you bought yesterday? A. which B. that C. what D. the one 答案B 当主语从句是以who, which 开头的特殊疑问句或先行词是who 时用that. 12. I have the same book _____you bought yesterday. A. as B. that C. which D. what
中考英语单项选择易错题精选
中考英语单项选择易错题精选 1.What do you think ______solve the problem ? A .you can do B.can you do C .you can do to D.can you do to 2 .In the past he often made his sister____, but now he is often made ___by his sister. A. to cry; to cry B. cry; cry C .to cry; cry D .cry; to cry 3 .The teacher told us that the sun ____in the east. A .rises B .rose C .raises D .raised 4 .He lives in a village _____there are a lot of trees. A. there B. where C .that D .which 5. He _________ Alice for ten years. A. married to B .has married to C. has married D.has been married to 6 .We need fifteen more people _____our team to do the job. A .but B .except C. as well D .besides 7 .They won`t allow us ________ at this beach. A .swimming B. to swim C .swam D .swim 8 .Is this factory ______you visited last week? A. that B. where C .the one D. in which 9 .The reason ____he was absent from the meeting was ____his car broke down on the way. A .that; because B .why; that C. that; that D. for; that 10 .Is the river_____ through that town very large? A .which flows B. flows C. that flowing D.whose flows 11 .The teacher told me that the students I wanted to see were seen___ football on the playground just now. A .playing B. to be playing C .play D .to play 12. The red rose is the only one _____I real like. A. which B .who C .that D. whom 13 .All the apples _____ fell down were eaten by the pigs. A .those B. which C. what D. that 14 .Don`t forget the day ______you were received into the Youth League. A .when B .that C .at which D .where
二次根式易错题难题
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二次根式易错题难题
二次根式易错题难题 1、当a 时， 有意义 2、计算： 3、计算： 4、计算： (a >0,b >0,c >0) 5、计算： = = 6、 7、 则 2006个3 2006个4 8、 9、观察以下各式： 利用以上规律计算： 10、已知 一、选择题 11、若32+x 有意义，则 ( ) A 、 B 、 C 、 D 、 12、化简 的结果是 ( ) A 、0 B 、2a -4 C 、4 D 、4-2a 13、能使等式 成立的条件是 ( ) A 、x ≥0 B 、x ≥3 C 、x >3 D 、x >3或x <0 14、下列各式中,是最简二次根式的是 ( ) A 、x 8 B 、b a 25 C 、2294b a + D 、 15、已知 ,那么 的值是 ( ) A 、1 B 、 -1 C 、±1 D 、4 16、如果 ，则a 和b 的关系是 ( ) A 、a ≤b B 、a b 17、已知xy >0，化简二次根式 的正确结果为 ( ) A 、 B 、 C 、 D 、 18、如图，Rt △AMC 中，∠C=90°， ∠AMC=30°，AM ∥BN ，MN=2 cm ， BC=1cm ，则AC 的长度为 ( ) A 、23cm B 、3cm C 、3.2cm D 、 19、下列说法正确的个数是 ( ) ①2的平方根是 ；② 是同类二次根式； ③ 互为倒数；④ A 、1 B 、2 C 、3 D 、4 20、下列四个算式，其中一定成立的是 ( ) ① ； ② ； ③ ④ A 、①②③④ B 、①②③ C 、①③ D 、① 三、解答题 21、求 有意义的条件(5分) 22、已知 求3x +4y 的值 23、化简625①- ②627- 24、在实数范围内将下列各式因式分解 ① ② ③ ④ 25、已知实数a 满足 ，求a -20052的值 26设长方形的长与宽分别为a 、b ，面积为S ①已知 ；②已知S= cm 2,b = cm,求 a 27、①已知 ； ②已知x = 求x 2-4x -6的值 28、已知Rt △ABC 中，∠ACB=90°，AC=22cm ， BC=10cm ，求AB 上的高CD 长度 29、计算： 30、已知 ，求① ；② 的值 ()=-231）（a -1()= 2232）（=c b a 2382）（= +=+=+222222444333443343，，= +22444333 = +-20062005)12()12(()= +??? ??++++++++12006200520061341 231 121 23 -≥x 23 -≤x 32-≥x 3 2-≤x 2)2(2-+-a a 33-=-x x x x 2 y 51 =+x x x x 1-12122-=+-?-b ab a b a 2x y x -y y -y -y --3M A N B cm 323 a a 2.05与21212+-与3223--的绝对值是11222+=+a a ）（a a =2）（0>?=a b b a ab 11)1)(1(-?+=-+x x x x 11+-x x 214422-+-+-=x x x y 3322+-x x 752-x 44-x 44+x a a a =-+-200620057250S cm b cm a ，求，1022==C A B D ()()()()121123131302-+-+---+