2014-2015 九年级上Unit 4 I used to be afraid of the dark语法点加对应练习
一、重点短语辨析
1. 辨析：used to do / be used to doing /be used to do
used to do,表示______________,是过去时态，用于描述过去常常发生的动作或存在的状态。
1. 我过去害怕黑暗。I used to________(be) afraid of the dark.
be/get used to doing,表示_____________.
2. 玛利亚习惯早起。Maria is used to_____________(get)up early.
be used to do, 表示_______________,相当于_________________.
3. 火可以被用来做饭。Fire can be used to cook foo,D.
= Fire can ____ _______ ______ _______ foo,D. 练习
4. 我习惯走路上学。I _____ ______ _____ _____ to school.
5. He used to smoke, ______ _______?(完成反义疑问句)
6. 李先生过去住在美国，所以习惯吃西餐。
Mr Li ____ _____ ____ in America, so he _____ _____ ______ _______ western dishes.
7. 小刀是用来切东西的。
Knives _____ ______ ______ _____things.
= Knives _____ ______ ______ _____things.
真题链接：
()1. Her son ________ Coke, but now he ________ milk.
A. used to drink; is used to drinking
B. used to drinking; drinks
C. is used to drinking; used to drink
D. is used to drink; is drinking
()2. My uncle________ a businessman, but now he is a factory worker.
A. used to being
B. was used to be
C. use to be
D. used to be
()3. Betty ________ many friends to play with.
A. used to have
B. use to have
C. used to having
D. use to having
()4. Mary used to ____ to work, but she is used to ______ to work now.
A. riding a bike; taking a bus
B. riding a bike; take a bus
C. ride a bike; taking a bus
D. ride a bike; take a bus
()5. ______ used to______ an old bookshelf in my room.
A. There; be
B. There; have
C. It; be
D. There; having
()6. Mother _____us stories when we were young.
A. used to telling
B. is used to tell
C. used to tell
D. is used to telling
()7.【2011·苏州】I ____ keep dogs for protection, but now I keep them as pets.
A. would rather
B. had better
C. used to
D. have to
()8.【2011?兰州】Mary is used to a T-shirt and jeans.
A. wear
B. put on
C. wearing
D. putting on
()9.【2011雅安】Her sister ____ a taxi driver. Now she works for a charity.
A. is
B. were used to being
C. is used to being
D. used to be
()10.【2011?铜仁】Bamboo can ___________ paper.
A. used to make
B. be used make
C. be used to make
D. be used to making
()11.【2010湖北·孝感】Old Henry _____ take his dog for a walk after supper. But these days he is too weak to do
that.
A. has to
B. is able to
C. used to
D. got used to
()12.【2010江西·南昌】一Are you ____ the dark?
—Oh. yes. I always go to sleep with the light on.
A. used to
B. afraid of
C. interested in
D. good with
()13.【2010·兰州】We have up early in order to catch the early bus.
A. used to get
B. been used to get
C. used for getting
D. been used to getting
阅读短文，完成任务。
When I was young, I was a very naughty boy. But now I am not naughty any more. I often made trouble which made both my father and mother very worrie,D. I liked watching TV all the day and I didn't like to go to bed early. I often forgot to do my homework, so my teacher wasn't happy. But I had a good habit. I liked eating. I didn't care what food my parents gave me. I could finish all the food I could see.
根据短文内容，用第三人称完成下列短文
When he was young , he naughty . His were about him . He would all the day watching TV . He didn't early . He couldn't his homework ,so his teacher was
with him . But he had a very good habit . He didn't what food his parents gave him . He could eat all the food that he could see.
2. 辨析：be afraid of / be afraid to
3. can与be able to
___________(1) 可以用于各种时态，有人称和数的变化；
（2）可以用于情态动词之后。
___________(1) 只有一般现在时和一般过去时的用法；
（2）除表示能力外，还可表示请求、许可或猜测。
如：我可以穿得更随意些。I will be able to dress mor casually.
练习：1. I could swim when I was seven years ol,D.
= I ____ _____ ____swim when I was seven years ol,D.
2. 五年后人们将能够破解这个难题。
People______ ____ _____ _____work out the problem in five years.
3. ---我能问些问题吗？---当然可以。
---_______I ask you some questions?---Certainly.
4. from time to time时常；有时，和sometimes, at times是同义表达。
常见的time短语有：
what time 几点；
at times 不时，有时；on time 按时，准时；
all the time 一直，总是；for the first time 第一次；
in time 及时；
at the same time 同时；
have a good/great/wonderful time 玩得开心；
5. deal with和do with都表示“对付；应对”，但deal with多和how搭配，do with多和what搭配。你知道怎样处理这个问题吗？
Do you know how to ______ ______ the problem?
上周那钱你是怎么处置的？
What did you______ ________the money last week?
8. a number of与the number of
a number of 表示“许多；大量”，修饰可数名词。a number of…结构作主语时，谓语动词用复数形式。
the number of 表示“……的数量”，修饰可数名词。the number of…结构作主语时，谓语动词用单数形式。
我们班学生的数量是50。The number of students in our class_________ fifty.
大多数是男生。 A number of the students ____________boys.
单项选择
1. Our life______ a lot in the last ten years.
A. has changed
B. have changed
C. will change
D. changed
2. —________ do you surf the Internet? —Twice a week.
A. How much
B. How long
C. How soon
D. How often
3. Whatever happens, we shouldn't ______ our hopes.
A. put up
B. cheer up
C. keep up
D. give up
4. ______ my teachers' help, I began to catch up with my classmates.
A. With
B. Under
C. In
D. To
5. — Don't smoke any more. It's bad for your health. — I'm trying to________ It's really hard, you know.
A. turn it on
B. put it off
C. give it up
D. take it out
6. so 与such 的用法辨析
（1）so “如此的，这么”是副词，修饰形容词和副词，such “这样的，如此的”是形容词，修饰名词。so…. that … “如此…以致于. . ” such …that ……“如此…以致于. . ”
如：She is such a lovely girl that everyone loves her.
The desk is so heavy that I can't carry it .
（2）so 与such 常用结构有：
such + a / an +adj +单数名词adj +不可数名词
adj +复数名词
so +
adj / adv
adj +a/ an +单数名词many /few +可数名词复数much / little +不可数名词
练习：1. 人们不愿做这样的工作。
People would not like to do ______work. (so, such)
2. It is ___delicious food that I want some more.
A. such a ,
B. such ,
C. so a ,
D. so
3. 他如此小一致于还不能去上学。
He's _____ _____that he can't go to school.
4. 这样热的天还有这么多的学生在操场上踢足球，我感到很惊讶。
I'm amazed that _____many students are playing soccer on the playground on ____a hot day . X K b1. C om
5. This is such a good book. = This is _____ _____ _____book.
用so或such填空
(1)The boy is ___________ young that he can't go to school.
(2)He told us_________ a funny story that we all laughe,D.
(3)He has __________ few books to read that he has to borrow some from the library.
(4)The girl had____________ high a fever that she couldn't go to school.
7. wear、put on、dress、have on和be in的区别
1）. wear : “穿、穿着、戴着”，强调状态。wear后面接可穿戴的东西，也包括眼镜、首饰等，可用于进行时态。
2）. put on “穿上、戴上”，指“穿”的动作，反义词为“take off”。
例：You should put on your jacket . 你应该把夹克穿上。
We need to wear warm clothes in winter . 冬天我们要穿暖和的衣服。
He put on his hat and coat and went out . 他戴上帽子，穿好衣服出去了。
3）. dress 穿衣，作及物动词，后接人做宾语，意为“给某人穿衣服”
例如：The girl likes to dress in black .
这姑娘喜欢穿黑的。
Will you dress the children ?
你给小孩们穿衣服好吗？
注：dress的宾语一般是表示人的名词，而不是表示衣服的名词。
4）. dress up：动词短语，“打扮漂亮”“打扮成某种样子”。
例如：They all dressed up for her birthday party .
他们全都穿上最好的衣服去参加她的生日舞会。
We are going to dress the boy up as a PLA man .
我们打算把这个男孩打扮成解放军的模样。
5）. be dressed in 指某人在某场合穿什么衣服。
6）. have on 指“穿”后状态，后可接衣服、帽子、鞋子等能穿戴的东西，但它不能用于进行式。
例：He has on a blue coat today . 今天他穿一件蓝上衣。
7）. be in表示状态，后接衣服，也可接表颜色的单词。
例：The boy in black is my brother . 穿黑衣服的那个男孩是我兄弟
8. mind 的用法.
一、mind作可数名词，意为\"脑子；想法；记性\"。
如：An idea has just come into my min,D. 我刚才想到一个主意。
I can\'t think where I've left my umbrella; my mind is a complete blank!
我想不起来把伞落哪儿了；一点儿印象都没有！
二、mind作动词。
1. 意为\"当心；注意\"，后跟名词或从句，也可单独使用。
如：Mind the step! 小心台阶！
Now mind! You must hurry home. 注意啦！你必须赶快回家。
2. 意为\"介意；在乎\"，主要用于疑问句和否定句。
①作不及物动词。
如：Do you mind if I call you later? 我晚一点儿打电话给你好吗？
a. 如果\"同意；不反对\"别人做某事，答语用否定形式。
,B. 如果\"不同意；反对\"别人做某事，答语用肯定形式。一般多用I am sorry. . . 或I\'m afrai,D. . . 等以缓和语气。
-Do you mind if I smoke?
-Not at all, please.
-Would you mind me opening that door?
-I'm sorry, but it\'s not allowe,D.
②作及物动词，后面通常接名词、代词、V-ing形式、复合结构、从句等。
如：Would you mind my closing the window? 你介意我关上窗户吗？
注意：Do (Would) you mind doing sth. ? 这一句型通常用来表示请他人做某事，常译为\"可否请你做. . . . . . \"或\"劳驾你做. . . . . . \"，多用Would开头，用Do的情况较少。
Would you mind making some room for the patient?请你给这位病人让点儿地方出来行吗？
三、mind的常用短语：
change one\'s mind 改变主意；make up one\'s mind作出决定；
keep. . . in mind记住. . . . . . ；never mind不要紧，等。
中考链接
1. Mario used to _____________ in the morning.
A. practice swimming
B. practicing swimming
C. practice swim
D. practicing swimming
2. The movie is so _______ that I am very _________ in it.
A. interesting; interesting
B. interested; interested
C. interesting; interested
D. interested; interesting
3. Xiao Ming plays _________ piano in his free time.
A. a
B. an
C. the
D. /
4. Tina will be used to ________ in Quanzhou.
A. live
B. living
C. lives
D. lived
5 . Antonio spent two hours ____the job yesterday.
A. finishing
B. finish
C. to finish
D. finished
6. Would you mind _____ the window for me?
A. open
B. opening
C. to open
D. opens
7. So much work usually makes them ___very tire,D.
A. feel
B. to feel
C. feeling
D. feels
8. Martin is interested in _______Chinese.
A. learn
B. to learn
C. learning
D. learns
二、反意疑问句
附在陈述句后面对陈述的事实提出相反的句子叫反意疑问句。反意疑问句由两部分组成,前一部分是陈述句, 后一部分是简略问句.
1. 基本结构:前肯后否；前否后肯
(1) 疑问部分的主语必须和陈述部分的主语一致，疑问部分的主语一定用代词。
Mr Black comes from the UK, doesn't _________?
(2) 疑问部分必须和陈述部分的时态一致。
Tom went to the cinema yesterday, _____________he?
(3) 答语是肯定的用”Yes”,答语是否定的用“No”。
---Ann didn't come to school last week , did she ?---_________, she didn't . She was ill.
2. 特殊形式
(1) 当陈述部分是there be 结构时，反意疑问句用……there.
There are many birds in the trees, aren't ________?
(2) 当陈述部分的主语是this/ that时，反意疑问句的主语用it.
当陈述部分的主语是these /those时，反意疑问句的主语用they .
This is an English car, isn't _____? These are Russian planes , aren't _______?
(3) 陈述句有little（少）, few（少）, never（从未）, no（没有）neither（两者不）nobody（没人）, nothing （无东西）seldom, hardly, rarely, barely scarcely 等否定词时，疑问尾句要用肯定形式。
There is little water in the cup,_________?
You have never been to Disneyland，________?
They have no money,_____________?
(4) 当陈述部分含有有由否定前缀un. . ,im. . dis. . 等构成的否定意义的词时，反意疑问句仍用否定形式。Mary is unhappy, ______she ?
(5) 当陈述部分的主语是不定代词something/ anything/ everything/ nothing等时，反意疑问句的主语用it. 当陈述部分的主语是不定代词someone/ anyone / everyone等时，反意疑问句的主语用they
Nothing is wrong with the computer, _________ _________?
Everyone has known the news, ___________ _____________?
(6) 肯定的祈使句，反意疑问句用will you 或won't you. 否定的祈使句，反意疑问句
通常只用will you ; Let's 开头的祈使句，反意问句用shall we?其他均用will you.
Be sure to write to me, ___________/ _________?
Don't smoke in the room, ____________?
Let's take a walk,__________?
Let us go , ________?
Let the boy go first , _________?
(7) 反意疑问句的陈述部分为I / We think (believe, suppose, consider) + that从句时，问句部分的动词及主语与that从句内的动词和主语保持一致。
如：
①I think that he has done his best, hasn't he?
②We think that English is very useful, isn't it? (不用don't we?)
真题链接：
1. （2010三亚中考）He hardly hurt himself in the accident___________?
A. doesn't he
B. didn't he
C. did he
D. does he
2. (2010巴中中考）Let's search the Internet for some information about famous people,______?
A. will you
B. won't you
C. shall we
3. （2013苏州市）Eric's never seen a three-D movie at the cinema，_______?
A. hasn't he
B. has he
C. isn't he
D. is he
4. -(2010兰州市)--He didn't go to the meeting this morning, did he? ----______. Though he was not feeling very well.
A. No, he didn't.
B. Yes, he did.
C. No, he did
D. Yes, he didn't.
5. (2010常州市)—He's already back to Australia, _________? —_________. He is on a visit to Shanghai.
A. isn't he; No
B. hasn't he; Yes
C. isn't he; Yes
D. hasn't he; No
6. (2010娄底中考) —She doesn't like geography，does she? —___.
A. Yes，she does
B. Yes，she doesn't
C. No，she does
7. (2010绥化中考) He's flown to Hainan for a holiday, _______ he?
A. isn't
B. hasn't
C. wasn't
8. --- Let's go skating,_______? --- OK. Let's go. (2010湖北十堰市)
A. do you
B. don't you
C. will you
D. shall we
9.(2013·滨州中考) –There is little milk in the milk bag, ________ there?
A. is
B. isn't
C. aren't
D. are
10. (2009·孝感) Bob, you watched the fashion show last night, ________?
A. weren't you
B. didn't you
C. haven't you
D. won't you
11. (2009山东东营) -You won't be late, ________?
A. should you
B. will you
C. don't you
D. can you
12. (2009绥化) There is no important information in the newspaper, _____?
A. isn't there
B. is it
C. is there
13. (2009四川南充) There are two libraries in this city, _______?
A. aren't there
B. aren't they
C. are two
14. (2009山东威海) Mom, my grandfather goes for a walk after supper every day, _______?
A. does he
B. is he
C. doesn't he
D. isn't he
15. (2009山东临沂) Liu Qian has made magic a hot word, _______ he?
A. doesn't
B. didn't
C. hasn't
D. isn't
16. (2009·山东中考) –You aren't a professional football player, are you? -______. I am just a football fan.
A. Yes, I am
B. No, I'm not
C. Of course
D. Sometimes
17. (2009福州) ---Millions of people know about Susan Boyle now, _______?
---____, she becomes well-known because of her success on Britain's Got Talent.
A. do they; No
B. do they; Yes
C. don't they; No
D. don't they; Yes
18. (2009·锦州中考) He's fed the dog and the cat, _______?
A. doesn't he
B. isn't he
C. wasn't he
D. hasn't he
19. (2009安徽芜湖) John, clean your room, _______?
A. will you
B. shall we
C. don't you
D. doesn't he
20. (2009柳州) I don't think she has gone to Beijing, _______?
A. has she
B. hasn't she
C. do I
D. don't I
三、初中阶段容易考-ing的情况总结如下：
一、一些动词后要接动名词作宾语
1. Everyone enjoys____(watch) TV in the evening.
2. Please finish____(draw)the picture after school.
3. The students practise____(read) English every morning.
【解析】动词finish, mind, enjoy, practise, keep, miss, hate, consider, continue ,
Imagine, suggest, advise等后接动词，要用动名词形式作宾语。答案是：watching；drawing；reading.
二、一些介词后面要加动名词作宾语
1. He is good at ____(write).
2. We are looking forward to____(see)you.
3. They are interested in____(listen)to musi,C.
4. You can drink a lot of water without____(get) fat.
thanks for doing sth think about doing be good at doing sth
do well in doing sth succeed in doing How/What about doing sth?
instead of doing sth keep sb from doing sth stop sb from doing sth
look forward to doing sth be used to（习惯于）doing sth devote to doing sth
pay attention to doing prefer doing to doing make a contribution (贡献)to doing sth
三、一些固定结构要加动词的ing形式
1. He spends half an hour____(do)his homework every day.
2. They are busy____(prepare)for the coming test.
3. We have a great time____(talk)to each time at lunchtime.
【解析】在一些固定结构中要求使用动词-ing形式。
have some problems(difficulty;trouble) doing sth spend…doing sth
be busy doing have fun doing sth
have a great time doing sth prevent sb from doing sth
feel like doing give up doing
can't help doing put off doing
keep on doing be worth doing
end up doing find sb doing
do some/the cleaning/speaking/…No smoking/parking.
四、动词doing可以用作状语，表示时间、原因、方式和伴随情况
1. The old woman took a baby in her arms,____(look) at the blue sky.
2. There is a dog ____(lie)on the groun,D.
3. , ____(laught and talk )they went into the room.
4. All night long she lay awake, ____(think )of the problem.
【解析】此处为分词短语作伴随情况的状语。答案是：looking；lying. laughting and talking, thinking Please turn off the lights before ____(leave).
【解析】此处为分词短语说明时间。答案是：leaving
Being sick, she stayed at home. (说明原因)
五、构成的短语.
1、by the way顺便说，附带说说
Oh, by the way, there is a telephone message for you.
噢，顺便告诉你，有你一个电话口信。
2. 还有一些动词+ one”s way的短语：
make one's way 非常困难地前进push one's way 排开……前进
lose one's way 迷路find one's way 找到路
3、in the way造成不便或阻碍
I'm afraid your car is in the way. 看来你的汽车挡道了。
I left them alone, as I felt I was in the way. 我躲开了他们，因为我觉得我碍他的路了。
4. in a way/in one way/in some ways在某种程度上
The changes are an improvement in one way.
这些变革从某种意义上说是一种进步。
5. go one's own way 独断专行
Whatever you suggest, she will always go her own way.
无论你怎样劝说，她总是我行我素。
6. one way and another考虑到各个方面
She's been very successful, one way and another.
无论从哪方面看，她都是很有成就的。
适当的词填空
1. Li Wen is a ___________________(fifteen years old )boy.
2. His mother couldn't ___________( pay for) her child's education.
3. His mother looked after him as ___________ as she coul,D. (good)
4. ________ (luck), Li Wen caused problems for himself and his family.
5. He was not interested in __________(study) and he often got into trouble with the police.
6. _________(Luck), his parents didn't give up him.
7. In the end, she made a difficult ____________(decide).
8. The head teacher said it was necessary for Li Wen _______( talk) with his mother.
9. My mother helped me _____________(understand) how much she had given me.
10. He was watching me and would always take pride _________(填介词) everything good I do.
11. I have been afraid of_______(be) alone, and have tried to make my mother ______________(to pay more attention
to) me.
单元重点词组：
1. 过去常常做某事:_____ _____ do sth
2. 害怕: be ______ _______
3. 时常，有时_____time_____time
4. 如此好的一个主意______ ______ _______idea(2种)
5. 开始从事，开始做，学着做______up
6. 对付，应付_______with
7. 不再: ______ _____ =not…_______ ______
8. 一堆，许多的，大量的______of
9. 做好做…的准备be__________to do sth
10. 担心________about
11. 继续奋斗/战斗____on=go on_____
12. 少数a small_________ ________
13. 获得成功_________it
14. 至少at__________
15. 在公共场所，公开地in_____
16. 总是，一直all the________
17. 给某人惹麻烦________problems________sb
18. 缺席be absent____________
19. 决定做某事_____ a decision to do sth=_______to do sth
20. 违反规则_______the rules
21. 在足球队里____the soccer team
22. 取得好成绩______good_____
23. 建议某人(不)做某事____sb（not）to do sth
24. 一所寄宿学校a_________school
25. 亲自in________
26. 放弃做某事：give ______ _____sth
27. 令某人惊奇的是: ______one's __________
28. 改变了某人的生活________one's life
29. 即使:______ _____
30. 关心，照顾______care______=look________=________for
30. 对…感到自豪: ____ _____ in= be _____ of
31. 对…多加注意：pay_____attention_____
32. 使他对自己有信心make him_______good about_______
33. 最后：_____the end=_____ _____ =_______
34. 落课，逃课be absent_____classes=________classes
35. 保持沉默remain____________
36. 对某人有很大的影响have a great______ _____sb
37. 给我们讲有趣的笑话tell____interesting______
38. 有很大的改变change _____ ________
39. 在过去的几年里______ the last/past few years(现完)
中考链接
1. When I was a child, I used to ______ chocolate.
A. liking
B. like
C. liked
D. likes
2. ___________ work in Microsoft?
A. Did you used to
B. Did you use to
C. Do you used to
D. Do you use to
3. Tom used to be short ,_____he?
A. doesn't
B. didn't
C. did
D. does
4. _______ seems that Jane knows the bad news.
A. That
B. This
C. It
D. She
5. Tina is so shy that she is afraid of in front of a group.
A. speak
B. speaks
C. spoke
D. speaking
完形填空:
1__ of years ago, life was much harder than it is today. People didn't have modern machines. There was no modern medicine, 2 .
Life today has brought new 3 . One of the biggest is pollution of our drinking water. 4 pollution makes us talk louder and become angry more easily. Air pollution is the most serious kind of pollution. It's bad to all living things in the world
Cars, planes and factories all pollute our air every day. Sometimes the polluted air is so thick that it is like a quilt 5 a city. This kind of quilt (被子）is called smog (烟雾).
Many countries are making rules to fight pollution. Factories must now clean their water before it is thrown away, they mustn't blow dirty 6 into the air.
We need to do many other things. We can put waste things in the dustbin and not throw it on the ground. We can go to work 7 or with our friends in 8 car. If there are fewer people driving, there will be 9 pollution.
Rules are not 10 . Every person must help to fight pollution.
1. A. Hundred
2. A. also
3. A. problems
4. A. Noise
5. A. around
6. A. noise
7. A. by foot
8. A. same
9. A. fewer
10. A. much B. One hundred
B. as well
B. questions
B. Dirty paper
B. on
B. smoke
B. on bus
B. the same
B. less
B. many
C. Hundreds
C. too
C. styles
C. Litters
C. through
C. water
C. by bus
C. a same
C a few
C. good
D. Two hundred
D. either
D. inventions
D. Water
D. over
D. wind
D. by the bus
D. different
D. more
D. enough
Unit 1 词汇巩固 一、根据句意及首字母或汉语提示写出单词，完成句子。 1.However, he began to d that it was a real golden crown. 2.She desires the g ring for herself. 3.I am c that it's not completely made of gold. 4.No one knew which woman was telling the t . 5.He is weak in grammar, and often makes m . 6.I can't s the problem alone. Can you help me? 二、单项选择。 1. He used to to school late, but now he doesn't. A. go B. going C. went D. goes 2. Please the glass milk. A. fill; in B. filling; with C. fills; to D. fill; with 3. All the Chinese people must work hard China Dream. A. to realize B. realize C. realizing D. realized 4. The teacher asked us football on the street. A. don't play B. not play C. not to play D. to not play 5.---Have you read today's newspaper? ---No, I haven't. Is there in it? A. something important B. anything special C. new anything D. important something 6. His teacher isn't happy his explanation. A. to B. in C. from D. with 7. Pudong International Airport is one of airports in the world. A. big B. bigger C. biggest D. the biggest 8. Look at the smog (雾霾). bad weather it is! A. How a B. How C. What D. What a 9. The maths problem is so hard. I really don't know what . A. do B. to do C. doing D. did 10. Don't jump to a conclusion! Let's the problem first. A. to discuss B. discussed C. discussing D. discuss 语法练习—反义疑问句 一、单项选择 1. He was not careful enough, _______? A. did he B. had he C. does he D. was he 2. They have to wash their clothes by themselves, ______?
人教版2015-2０16年度九年级数学上学期期末考试试卷及答案 时间：12０分钟 满分:15０分 一、选择题（本大题共1０小题，每小题3分,共30分) １．（2０13?内江）若抛物线y=x ２﹣2ｘ＋c 与y 轴的交点为(0,﹣3），则下列说法不正确的是（ ） A ． 抛物线开口向上 B. 抛物线的对称轴是x=1 Ｃ． 当x ＝1时，y 的最大值为﹣4 D ． 抛物线与x 轴的交点为(﹣1,０）， （3,0） 2．若关于x 的一元二次方程0235)1(22=+-++-m m x x m 的常数项为0，则m 的 值等 于（ ） A.1 B.2 ? C.1或2 D ．0 3.三角形的两边长分别为3和６，第三边的长是方程2680x x -+=的一个根，则这个三角 形的周长是( ） Ａ．9 ??Ｂ．１1?? C.１3 ?Ｄ、1４ 4．（201５?兰州）下列函数解析式中,一定为二次函数的是（ ) A .?y =3ｘ﹣１?B .?y =a ｘ2+bx ＋c ?C .?s =2t ２﹣2t ＋１?Ｄ.?y =x ２+ ５.（20１0 内蒙古包头）关于x 的一元二次方程2 210x mx m -+-=的两个实数 根分别是12 x x 、,且 22 127 x x +=，则 2 12()x x -的值是（ ) A ．１ ? B ．1２ ? C ．１３? D.25 6.（20１3?荆门)在平面直角坐标系中，线段ＯP 的两个端点坐标分别是O (０,０), Ｐ（４，3)，将线段ＯP 绕点O 逆时针旋转９０°到OP ′位置，则点P ′的坐标为（ ） A . (3,4） B . (﹣4，3) C . (﹣3,4） D ． （4，﹣3） 7.有一个不透明的布袋中，红色、黑色、白色的玻璃球共有40个，除颜色外其 它完全相同。小李通过多次摸球试验后发现其中摸到红色、黑色球的频率稳定在1５%和４5%，则口袋中白色球的个数很可能是( ) Ａ.６ Ｂ．16 C ．１８ D ．2４ 8.如图,四边形ＡBC Ｄ内接于⊙Ｏ，BC 是直径,ＡD ＝ＤC ，∠ADB=20o，则∠ACB ， ∠ＤBC 分别 为（ ） Ａ.１5o与3０o B ．20o与3５o C.20o与40o? D ．3０o与3５o 9.如图所示，小华从一个圆形场地的A 点出发，沿着与半径O Ａ夹角为α的方
人教版2015-2016年度九年级数学上学期期末考试试卷及答案 时间：120分钟 满分：150分 一、选择题（本大题共10小题，每小题3分，共30分） 1．（2013?内江）若抛物线y=x 2﹣2x+c 与y 轴的交点为（0，﹣3），则下列说法不正确的是（ ） A ． 抛物线开口向上 B ． 抛物线的对称轴是x=1 C ． 当x=1时，y 的最大值为﹣4 D ． 抛物线与x 轴的交点为（﹣1，0），（3， 0） 2．若关于x 的一元二次方程0235)1(22=+-++-m m x x m 的常数项为0，则m 的 值等 于（ ） A ．1 B ．2 C ．1或2 D ．0 3．三角形的两边长分别为3和6，第三边的长是方程2680x x -+=的一个根，则这个三角 形的周长是（ ） Ａ．9 Ｂ．11 Ｃ．13 D 、14 4．（2015?兰州）下列函数解析式中，一定为二次函数的是（ ） A ． y =3x ﹣1 B ． y =ax 2+bx +c C ． s =2t 2﹣2t +1 D ． y =x 2+ 5.（2010 内蒙古包头）关于x 的一元二次方程2 210x mx m -+-=的两个实数根 分别是12 x x 、，且 22 127 x x +=，则 2 12()x x -的值是（ ） A ．1 B ．12 C ．13 D ．25 6.（2013?荆门）在平面直角坐标系中，线段OP 的两个端点坐标分别是O （0，0），P （4，3），将线段OP 绕点O 逆时针旋转90°到OP ′位置，则点P ′的坐标为（ ） A ． （3，4） B ． （﹣4，3） C ． （﹣3，4） D ． （4，﹣3） 7．有一个不透明的布袋中，红色、黑色、白色的玻璃球共有40个，除颜色外其 它完全相同。小李通过多次摸球试验后发现其中摸到红色、黑色球的频率稳定在15%和45%，则口袋中白色球的个数很可能是（ ） A ．6 B ．16 C ．18 D ．24 8．如图，四边形ABCD 内接于⊙O ，BC 是直径，AD ＝DC ，∠ADB ＝20o ，则∠ACB ， ∠DBC 分别 为（ ） A ．15o 与30o B ．20o 与35o C ．20o 与40o D ．30o 与35o 9．如图所示，小华从一个圆形场地的A 点出发，沿着与半径OA 夹角为α的方向行走，走 到场地边缘B 后，再沿着与半径OB 夹角为α的方向行走。按照这种方式，小华第五次走到场地边缘时处于弧AB 上，此时∠AOE ＝56°，则α的度数是（ ）
初三数学第一学期期末考试试卷 第Ⅰ卷（共32分） 一、选择题（本题共8道小题，每小题4分，共32分） 在每道小题给出的四个备选答案中，只有一个是符合题目要求的，请把所选答案的字母填在下面的表格中． 1．如果 53 2x =，那么x 的值是 A ．15 2 B ．215 C ．103 D ． 310 2．在Rt △ABC 中，∠C =90°，1 sin 3 A =，则 B cos 等于 A ．13 B ．2 3 C ． D ．3 3．把只有颜色不同的1个白球和2个红球装入一个不透明的口袋里搅匀，从中随机 地摸出１个球后放回搅匀，再次随机地摸出１个球，两次都摸到红球的概率为 A ． 12 B ．13 C ．19 D ．4 9 4．已知点(1,)A m 与点B (3,)n 都在反比例函数x y 3 =(0)x >的图象上，则m 与n 的关系是 A ．m n > B ．m n < C ．m n = D ．不能确定 5．如图，⊙C 过原点，与x 轴、y 轴分别交于A 、D 两点．已知∠OBA =30°，点D 的坐标为（0，2），则⊙C 半径是
A ． 433 B ．23 3 C ．43 D ．2 6．已知二次函数y ＝ax 2＋bx ＋c (a ≠0)的图象如图所示，给出以下结论： ①因为a ＞0，所以函数y 有最大值； ②该函数的图象关于直线1x =-对称； ③当2x =-时，函数y 的值等于0； ④当31x x =-=或时，函数y 的值都等于0. 其中正确结论的个数是 A ．4 B ．3 C ．2 D ．1 7．如图，∠1＝∠2＝∠3，则图中相似三角形共有 A ．4对 B ．3对 C ．2对 D ．1对 8．如图，直线4+-=x y 与两坐标轴分别交于A 、B 两点， 边长为2的正方形OCEF 沿着x 轴的正方向移动，设平 移的距离为 (04)a a ≤≤，正方形OCEF 与△AOB 重叠 部分的面积为S ．则表示S 与a 的函数关系的图象大致是 A ． B ． C ． D ． 第Ⅱ卷（共88分） 二、填空题（本题共4道小题，每小题4分，共16分） 第8题 3 2 1 E D C B A y x -3 1 -2 第5题 第6题 第7题 x C 1 A O B y E F a O S 244 2a O S 24 2a O S 4 2 a O S 24 4 2
2015-2016 学年第一学期荔湾区期末初三统考试卷 英语 一、语法选择（共15 小题；每小题1 分，满分15 分） 阅读下面短文，掌握其大意，然后从1-15 小题所给的A、B、C 和D 项中选出一个最 佳选项，并在答题卡上将该项涂黑。 Many, many years ago most people did not have beautiful books. Some families did not have books at all. The people ____1_____ did have books had only a few. Instead of ____2_____ books, people told stories. They would remember things ____3_____ happened to them and would retell these tales to friends. Some stories you read in books today ____4_____ to children many years ago by their fathers and mothers. ____5_____ those girls and boys grew up, they, in turn, told their children the same tales. Sometimes the stories changed as one man told ____6_____. That is why today there are different beginnings and different endings to the same folk tales. You ____7_____ different names for all kinds of characters in the different versions(版本) of the tales. In this way the stories almost seem ____8_____ different ones and not your favorite tales at all. Some people _____9____ stories. They would suppose ____10_____ things which had happened could not really have happened. Such people became ____11_____ as storytellers. In many of the tales, animals did the talking. In others, good men came to help bad men. Strange, exciting things ____12_____. The different ideas made interesting stories. Some of the early tales, ___13______ them Mother Goose verses were told in rhyme. The poems were learned by boys and girls at home and at school. What Mother Goose rhymes do you know and remember? Do you think there was _____14____ a Mother Goose? Mother Goose stories and rhymes are ____15_____ good ones that we read and enjoy them today, years after they were first told. 1. A. which B. whom C. who D. when 2. A. read B. to read C. reads D. reading 3. A. who B. that C. what D. where 4. A. tell B. told C. was told D. were told 5. A. When B. Though C. While D. Which 6. A. other B. another C. the other D. the others 7. A. even find B. even found C. will even find D. would even find 8. A. is B. are C. will be D. to be 9. A. made in B. made up C. made of D. made from 10. A. that B. what C. when D. where 11. A. know B. knew C. known D. to know 12. A. happen B. happened C. are happened D. were happened 13. A. in B. of C. among D. between 14. A. real B. really C. to be real D. to be really 15. A. such B. so C. such a D. so many 二、完形填空（共10 小题；每小题1.5，满分15 分） 阅读下面短文，掌握其大意，然后在16－25 小题所给我的A、B、C、D 四个选项中选 出一个最佳选项，并在答题卡上将该项涂黑。 Some British and American people like to invite friends for a meal at home. You should not
初三年级期末质量抽测 数学试卷 学校姓名考试编号 考 生 须 知 1．本试卷共8页，共五道大题，29道小题，满分120分．考试时间120分钟． 2．在试卷和答题卡上认真填写学校名称、姓名和考试编号． 3．试题答案一律填涂或书写在答题卡上，在试卷上作答无效． 4．考试结束，请将本试卷和答题卡一并交回． 一、选择题（共10道小题，每小题3分，共30分） 下列各题均有四个选项，其中只有一个 ．．是符合题意的． 1．在平面直角坐标系中，将点A（﹣2，3）向右平移3个单位长度后得到的对应点A′的 坐标是 A．（1，3）B．（﹣2，﹣3）C．（﹣2，6）D．（﹣2，1） 2．下面四个几何体中，主视图是圆的是 A B C D 3．“双十二”期间，小冉的妈妈在网上商城给小冉买了一个书包，除了书包打八折外还随机 赠送购买者1支笔（除颜色外其它都相同且数量有限）．小冉的妈妈购买成功时，还有5支黑 色，3支绿色，2支红色的笔.那么随机赠送的笔为绿色的概率为 A． 1 10 B． 1 5 C． 3 10 D． 2 5 4. 已知⊙O的半径长为5，若点P在⊙O内，那么下列结论正确的是 A. OP＞5 B. OP=5 C. 0＜OP＜5 D. 0≤OP＜5 5．如右图，在Rt△ABC中，∠C=90°，AC=4，BC=3，则sin B的值等于 C B A
A ． 43 B ． 34 C ． 45 D ． 35 6．已知(2)2m y m x =-+是y 关于x 的二次函数，那么m 的值为 A ．-2 B. 2 C. 2± D. 0 7．如右图，线段AB 是⊙O 的直径，弦CD 丄AB ，∠CAB =20°，则∠AOD 等于 A ．120° B ． 140° C ．150° D ． 160° 8．二次函数2 23y x x =--的最小值为 A. 5 B. 0 C. -3 D. -4 9．如右图，将△ABC 绕着点C 顺时针旋转50°后得到△A 1B 1C ．若∠A =40°， ∠B 1=110°，则∠BCA 1的度数是 10. 如右图，正方形ABCD 和正三角形AEF 都内接于⊙O ，EF 与BC ，CD 分别相交 于点G ，H ，则EF GH 的值为 A. B. 3 2 C. D. 2 二、填空题（共6道小题，每小题3分，共18分） 11．如果cos 2 A = ，那么锐角A 的度数为 . 12．如右图，四边形ABCD 内接于⊙O ，E 是BC 延长线上一点，若∠BAD =105°， 则∠DCE 的度数是 . 13．在一个不透明的口袋中装有5个除了标号外其余都完全相同的小球，把它们分别标号为 1，2，3，4， B 1 B A A 1 A B
广州市2017～2018学年九年级上期末英语试卷含答案
广州2017～2018市学年上学期期末考试九年级英语试卷一、语法选择（共15小题；每小题1分，满 分15分） 阅读下面短文，按照句子结构的语法性和 上下文连贯的语法要求，从1~15各题所给的A、B、C和D项中选出最佳选项，并在答题卡上将 该项涂黑。 When your dream is to become a footballer, nothing could get it in your way—even if you have no feet. Gabriel Muniz, 1 eleven-year-old Brazilian kid, was born without feet. 2 his family thought he would have serious difficulties living a normal life, he started 3 before he was one year old. 4 mother would go after him, expecting him to keep falling, but he never fell. It 5 him a long time to make the jump from walking to playing football, but he did make it. There was 6 he loved more than playing football. In his school, he was not only the best player in his school team 7 the captain of his gym. 2
2020-2021学年第一学期期末测试 九年级数学试题 学校________ 班级________ 姓名________ 成绩________ 一、选择题： 1.关于x 的方程x 2﹣3x +k ＝0的一个根是2,则常数k 的值为（ ） A. 1 B. 2 C. ﹣1 D. ﹣2 2.二次函数22(2)3=-+-y x 的顶点坐标是（ ） A. （-2,3） B. （-2,-3） C. （2,3） D. （2,-3） 3.如图,是由两个正方体组成的几何体,则该几何体的俯视图为（ ） A. B. C. D. 4.在一个不透明的布袋中有红色、黑色的球共10个,它们除颜色外其余完全相同．小娟通过多次摸球试验后发现其中摸到黑球的频率稳定在60%附近,则口袋中黑球的个数很可能是( ) A. 4 B. 5 C. 6 D. 7 5.把二次函数243y x x =---化成2()y a x h k =-+的形式是下列中的 ( ) A. 2(2)1y x =-- B. 2(2)1=---y x C. 2(2)1y x =-++ D. 2(2)1y x =-+- 6.如图,以点O 为位似中心,把△ABC 放大为原来的2倍,得到△A ′B ′C ′,以下说法错误的是（ ）
A. :2:1BB BO '= B. △ABC ∽△A ′B ′C ′ C. AB ∥A ′B ′ D. 点C ,点O ,点'C 三点共线 7.如图,在平行四边形ABCD 中,点E 在DC 边上,连接AE ,交 BD 于点F ,若DE ：EC ＝2：1,则△DEF 的面积与△BAF 的面积之比为（ ） A. 1 ：4 B. 4：9 C. 9：4 D. 2：3 8.关于反比例函数5 y x =,下列说法不正确的是（ ） A. y 随x 的增大而减小 B. 图象位于第一、三象限 C. 图象关于直线y x =对称 D. 图象经过点（-1,-5） 9.如图,二次函数2y ax bx c =++的图象经过点(1,0),(5,0)A B --,下列说法正确的是（ ） A. 0c > B. 240b ac -< C. 0a b c ++> D. 图象的对称轴是直线 3x =- 10.如图,矩形ABCD 的对角线交于点O ,已知,,AB m BAC a =∠=∠则下列结论错误．． 的是（ ） A. BDC α∠=∠ B. tan BC m a =? C. 2sin m AO α= D. cos m BD a = 二．填空题 11.若如果x ：y=3：1,那么x ：（x-y ）的值为_______.
九年级上学期数学期末测试卷 一、选择题(本大题共10个小题，每小题4分，共40分) 1. 下列说法正确的是（） A. 袋中有形状、大小、质地完全一样的5个红球和1个白球，从中随机抽出一个球，一定是红球 B. 天气预报“明天降水概率10%”，是指明天有10%的时间会下雨 C. 某地发行一种福利彩票，中奖率是千分之一，那么，买这种彩票1000张，一定会中奖 D. 连续掷一枚均匀硬币，若5次都是正面朝上，则第六次仍然可能正面朝上 2. 下列图形：任取一个是中心对称图形的概率是（） A. 1 4 B. 1 2 C. 3 4 D. 1 3. 用配方法解方程x2＋1=8x，变形后的结果正确的是( ) A. (x＋4)2=15 B. (x＋4)2=17 C. (x－4)2=15 D. (x－4)2=17 4. 把抛物线y＝－1 2 x2向下平移1个单位长度，再向左平移1个单位长度，得到的抛物线解析式为( ) A. y＝－1 2 (x＋1)2＋1 B. y＝－ 1 2 (x＋1)2－1 C. y＝－ 1 2 (x－1)2＋ 1 D. y＝－ 1 2 (x－1)2－1 5. 关于x的一元二次方程2 ax x10 -+=有实数根，则a的取值范围是 A. 1 a a0 4 ≠ ≤且 B. 1 a 4 ≤ C. 1 a a0 4 ≠ ≥－且 D. 1 a 4 ≥－ 6. 若正六边形的半径长为4，则它的边长等于（） A. 4 B. 2 C. 23 D. 43 7. 如图，点O为平面直角坐标系的原点，点A在x轴上，△OAB是边长为4的等边三角形，以O为旋转中心，将△OAB按顺时针方向旋转60°，得到△OA′B′，那么点A′的坐标为( ) A. (－2，3 B. (－2，4) C. (－2，2 D. (2，3
2016.1九年级英语期末试卷（广州海珠区有答案）莲 山课件 m 2015-2016学年第一学期海珠区 期末初三统考试卷和答案（英语） 一、语法选择（共15小题；每小题1分，满分15分） 阅读下面短文，掌握其大意，然后从1-15小题所给的A、B、c和D项中选出一个最 佳选项，并在答题卡上将该项涂黑。 Inrecentdays,thenewsofTuyouyou’swinningoftheNobelPrizeinmedicinehas occupiedthechinesemediaandeverybodygetsexcitedabout that.Dr.Tu,an___1____chinese medicalscientist,wasfamousforherdiscoveryofartemisi nin(青蒿素),amedicine___2____has greatlyreducedthenumberofpeoplewhodiefrommalaria(疟疾). Tu’sresearchcandatebacktothe1960s.Inordertosavethesold iersandpeopleinsouthern chinasufferingfrommalaria,Tuwasgivenatask__3_____th etreatmentfortheseriousillness.
ThechineseGovernment___4____lotsofmoneysupportinghe rwork,soshestartedher researchonanti-malariamedicineatonce.She___5____ate am,didexperimentsinover200 kindsoftraditionalchinesemedicinesandexperiencedove r380failures.Finallyshe___6____ artemisininin1971.After____7___onmiceandmonkeys,Tua ndhertwoteammates volunteeredtodomanyteatson___8____ownbodies.Atlast, itprovedtobe100percent effective.Theywerehappywiththetestresults,____9___t heysooncarriedoutmedicaltestson patientswidelyandcuredmedical-resistantmalaria___10 ____.Tusaid___11____thisprizewas notapersonalonebutthewisdomofawholeteam. “Artemisininisagiftfromtraditionalchinesemedicinet otheworld.”saidTuandsheended herspeechwithapoem___12____byourfamouspoetWangZhihu an,“Thebrightsunfalls behindthemountain,theyellowRiverrunstowardsocean,if you wanttoseeagranderview,gouponemorefloor.Ihope everybodycanenjoythe___13____ofchinesecultureandfin
初中九级数学 一、选择题(答案写在题前) 1、若x x -=-2)2(2 则x 的取值范围是 A ．2x >- B ．2x ≥- C ．2≤x 且0x ≠ D ．2≤x 2.圆锥的底面圆的周长是4πcm ，母线长是6cm ，则该圆锥的侧面展开图的圆心角的度数是 A ．40° B 。80° C 。120° D 。150° 3、如果a ＞0，c ＞0，那么二次函数y ＝ax 2 ＋bx ＋c 的图象大致是 A B C D 4、如图，点C 在⊙O 上，若∠ACB ＝40°，则∠AOB 等于 A 、40° B 、60° C 、80° D 、100° 5、如图，PA 、PB 是⊙O 的两条切线，A 、B 是切点，若∠APB=60°，PO=2，则⊙O 的半径等于 A 、2 B 、2 C 、1 D 、3 6、顺次连结等腰梯形四边中点得到一个四边形，再顺次连结所得四边形四边中点得到的图形是 A 、等腰梯形 B 、直角梯形 C 、菱形 D 、矩形 7．菱形的两条对角线长分别为5和4，那么这个菱形的面积为 A ．12 B ．8 C ．10 D ．15 8．设⊙O 的半径为2，圆心O 到直线l 的距离OP ＝m ，且m 使得关于x 的方程012222=-+-m x x 有实数根，则直线l 与⊙O 的位置关系为 A ．相离或相切 B ．相切或相交 C ．相离或相交 D ．无法确定 x y O A B C O (第4题图) A B O P (第5题图)
9、已知关于x 的方程232+-x kx =0有两个实数根，则k 的取值范围为 A 89≤ k B .89 九年级上册数学期末考试试题附参考答案 满分120分 一、选择题（每小题3分，共18分） 下列各小题均有四个答案，其中只有一个是正确的，请将正确答案的代号字母填入题后括号内。 1． Rt 90ABC C BAC ∠∠在△中，＝，的角平分线AD 交BC 于 点D ，2CD ＝，则点D 到AB 的距离是（ ） A ．1 B ．2 C ．3 D ．4[来源:学科网] 2．一元二次方程230x x -=的解是（ ） A ．0x = B ．1203x x ==， C ．1210,3x x == D ．1 3x = 3．顺次连结任意四边形各边中点所得到的四边形一定是 ( ) A ．平行四边形 B ．菱形 C ．矩形 D ．正方形[来源:https://www.doczj.com/doc/306377783.html,][来源:https://www.doczj.com/doc/306377783.html,] 4．小明拿一个等边三角形木框在阳光下玩，等边三角形木框在地面上形成的投影不可能．．． 是 [来源:学.科.网Z.X.X.K] A B C D 5．某农场的粮食总产量为1500吨，设该农场人数为x 人，平均每人占有粮食数为y 吨，则y 与x 之间的函数图象大致是（ ） 6．在李咏主持的“幸运52”栏目中，曾有一种竞猜游戏，游戏规则是：在20个商标牌中，有 5个商标牌的背面注 明了一定的奖金，其余商标牌的背面是一张“哭脸” ，若翻到“哭脸”就不 获奖,参与这个游戏的观众有三次翻牌的机会，且翻过的牌不能再翻．有一位观众已翻牌两次，一次获奖，一次不获奖，那么这位观众第三次翻牌获奖的概率是 A ． 15 B ．29 C ．14 D ．518 二、填空题（每小题3分，共27分） 7．如图，地面A 处有一支燃烧的蜡烛(长度不计)，一个人在A 与墙BC 之间运动，则他在墙上的投影长度随着他离墙的距离变小 A ． B ． C ． D ． 九年级上学期期末试卷 一、选择题： 1. 如图是北京奥运会自行车比赛项目标志，则图中两轮所在 圆的位置关系是（ ） A. 内含 B. 相交 C. 外切 D. 外离 2. 抛物线()212 12+-- =x y 的顶点坐标是（ ） A. ()2,1 B. ()2,1- C. ()2,1- D. ()2,1-- 3. 在ABC ?中， 90=∠C ，若2 3cos = B ，则A sin 的值为（ ） A. 3 B. 2 3 C. 3 3 D. 2 1 4. ⊙O 的半径是5cm ，O 到直线l 的距离cm OP 3=，Q 为l 上一点且2.4=PQ cm ，则 点Q （ ） A. 在⊙O 内 B. 在⊙O 上 C. 在⊙O 外 D. 以上情况都有可能 5. 把抛物线2 2x y -=向上平移2个单位，得到的抛物线是（ ） A. ()2 22+-=x y B. ()2 22--=x y C. 222 --=x y D. 222 +-=x y 6. 如图，A 、B 、C 三点是⊙O 上的点， 50=∠ABO 则BCA ∠ 的度数是（ ） A. 80 B. 50 C. 40 D. 25 7. 如图，在ABC ?中， 30=∠A ，2 3tan = B ，32=A C ， 则AB 的长为（ ） A. 34+ B. 5 C. 32+ D. 6 8. 已知直线()0≠+=a b ax y 经过一、三、四象限，则抛物线bx ax y +=2 一定经过（ ） A. 第一、二、三象限 B. 第一、三、四象限 C. 第一、二、四象限 D. 第三、四象限 9. 如图是一台54英寸的液晶电视旋转在墙角的俯视图，设 α=∠DAO ，电视后背AD 平行于前沿BC ,且与BC 的距 离为cm 60，若cm AO 100=，则墙角O 到前沿BC 的距 离OE 是（ ） A. ()cm αsin 10060+ B. ()cm αcos 10060+ C. ()cm αtan 10060+ D. 以上都不对 10. 二次函数()012 2 ≠-++=a a x ax y 的图象可能是（ ） 11. 已知点()1,1y -、()2,2y -、()3,2y 都在二次函数12632 +--=x x y 的图象上，则1y 、 2y 、3y 的大小关系为（ ） A. 231y y y >> B. 123y y y >> C. 213y y y >> D. 321y y y >> 12. 某测量队在山脚A 处测得山上树顶仰角为 45（如图），测量 队在山坡上前进600米到D 处，再测得树顶的仰角为 60, 已 知这段山坡的坡角为 30，如果树高为15米，则山高为（ ） （精确到1米，732.13=） A. 585米 B. 1014米 C. 805米 D. 820米 二、填空题： 13. 抛物线322 +-=x x y 的对称轴是直线 . 14. 如图，圆柱形水管内积水的水面宽度cm CD 8=，F 为? CD 九年级数学期末检测卷 一、选择题（每小题只有一个正确选项，将正确选项的序号填入题中的括号内，每小题3 分,共30分） 若一次函数的图彖经过二、三、 四彖限，则二次函数y = ax2^bx的图象只 2.抛物线y = x2-4x的对称轴是（） A.x=?2 B. x=4 3.如图1,在直/TJAABC 中，ZC=90°, 3 4 A? §B? § C. 4.小敏在今年的校运动会跳远比赛中跳出了满意一跳,函数/? = 3.5r-4.9r2（t的单位：s, h的单位：m）可以描述他跳跃时重心高度的变化，则他起跳后到重心最高时所用的时间是 A 0. 71s B 0. 70s CO. 63s 5.以上说法合理的是（） A、小明在10次抛图钉的试验中发现3次钉尖朝上，由此他说钉尖朝上的概率是30% B、抛掷一枚普通的正六而体骰了，岀现6的概率是1/6的意思是每6次就有1次掷得6 C、某彩票的中奖机会是2%,那么如果买100张彩票一定会冇2张中奖 D、在一次课堂进行的试验中，甲、乙两组同学估计硬币落地后，正面朝上的概率分別为0. 48 和0. 51 6.如图，CD是RtAABC斜边AB上的高，将ABCD沿 CD折叠， B点恰好落在AB的中点E处，则ZA等于（） 可能是（）\ 3/ \ y 丄 / -------- r °J A、B、 DO. 36s A. 25° B. 30° C. 45° D. 60° 7.在RtAABC 中，ZC = 90°, c=5, a=4,则sinA 伽为（）E 3 4 3 4 A、一B'w —C> —D、一 5 5 4 3 1月 2月 3月 4月 5月 6月 甲商场 450 440 480 420 576 550 乙商场 480 440 470 490 520 516 8. 一个密闭不透明的盒子里冇若干个白球，在不允许将球倒出来的情况下，为估计白球的 个数，小刚向其中放入8个黑球，摇匀后从屮随机摸出一个球记下颜色，再把它放回盒中， 不断重复，共摸球400次，?其中88次摸到黑球，估计盒中大约有白球（ ） A 、28 个 B 、30 个 C 、36 个 D 、42 个 9. 在100张奖卷屮，有4张屮奖，小红从中任抽1张，他屮奖的概率是（ ） 1 1 1 1 A 、一 B 、— C 、— D 、 --- 4 20 25 100 10. 设有12只型号相同的杯子，其中一等品7只，二等品3只，三等品2只，则从中任収 一只，是二等品的概率等于（ ） 1 1 1 7 A — B- C- D — 12 6 4 12 二、填空题（每小题3分，共30分） 11. 平移抛物线y = x 2+2x-8,使它经过原点，写出平移后抛物线的一个解析式 ______________ : 12. 如图，一艘轮船向正东方向航行，上午9时测得它在灯塔P 的南偏西30。方向，距离灯 塔 120海里的M 处，上午11时到达这座灯塔的正南方向的N 处，则这艘轮 船在这段时间 13. 请选择一组你喜欢的a 、b 、c 的值，使二次函数y = 0）?+bx + c （aH0）的图象同时满足 卜-列条件：①开口向下，②当x<2时，y 随兀的增大阳增大；当兀>2时，y 随兀的增大而 减小.这样的二次函数的解析式可以是 ___________________ ； 14. _________________________________________________________________ 如 图，等腰三角形ABC 的顶角为120°,腰长为10,则底边上的高AD= ___________________ : 16. 已知 a 为一锐角，K cosa = sin60°,则01= ______ 度； 17. 如图，厂房屋顶人字架（等腰三角形）的跨度为12m, ZA = 26\则中柱BC （C 为底 内航行的平均速度是 _________ 海里/时; 边中点）的长约为 ____________ m.（梢确到0. 01m ） 18.下表是两个商场1至6月份销售“椰树牌天然椰子汁”的情况（单位：箱） 2000年海南省受教育人口统计图表 3.17% 2009-2010学年上学期期末检测 九 年 级 数 学 试 卷 （全卷满分120分，考试时间120分钟） 一、选择题（本大题共8个小题，每题只有一个正确的 选项，每小题3分，满分24分） 1．一元二次方程042=-x 的解是（ ） A ．2=x B ．2-=x C ．21=x ，22-=x D ．21=x ，22-=x 2．二次三项式243x x -+配方的结果是（ ） A ．2(2)7x -+ B ．2(2)1x -- C ．2(2)7x ++ D ．2(2)1x +- 3．小明从上面观察下图所示的两个物体，看到的是（ ） A B C D 4．人离窗子越远，向外眺望时此人的盲区是（ ） A ．变小 B ．变大 C ．不变 D ．以上都有可能 5．函数x k y = 的图象经过（1，-1），则函数2-=kx y 的图象是（ ） B 6．在Rt △ABC 中，∠C=90°，a =4，b =3，则sinA 的值是（ ） A ． 54 B ．35 C ．43 D ．45 7．下列性质中正方形具有而矩形没有的是（ ） A ．对角线互相平分 B ．对角线相等 C ．对角线互相垂直 D ．四个角都是直角 8．一只小狗在如图的方砖上走来走去，最终停在阴影方砖上的概率是（ ） A ． 154 B ．31 C ．51 D ．15 2 二、填空题（本大题共7个小题，每小题3分，满分21 分） 9．计算tan60°= ． 10．已知函数2 2(1)m y m x -=-是反比例函数，则m 的值为 ． 11．若反比例函数x k y = 的图象经过点（3，－4），则此函数在每一个象限内 y 随x 的增大而 ． 12．命题“直角三角形两条直角边的平方和等于斜边的平方”的逆命题是 ． 13．有两组扑克牌各三张，牌面数字分别为2，3，4，随意从每组中牌中抽取一 张，数字和是6的概率是 ． 14．依次连接矩形各边中点所得到的四边形是 ． 15．如图，在△ABC 中，BC = 8 cm ，AB 的垂直平分线交 AB 于点Ｄ，交边AC 于点E ，△BCE 的周长等于18 cm ， 则AC 的长等于 cm ．九年级上册数学期末考试试题及答案
九年级上册数学期末试卷(含答案)
九年级上学期数学期末.doc
九年级上学期数学期末考试试卷及答案
相关主题
文本预览