读书破万卷下笔如有神_________ ________________________
八年级上期中错题集（2）
1. "Is there _______ wrong? ” the teacher asked the silent boy.
A. somethi ng
B. anything
C. no thi ng
D. everyth ing
2. - Can I have_______ stamps, please?
----Sorry, we don't have _______ left.
A. some; any
B. any; some
C. some; some
D. any; any
3. Every summer gra ndpa brings us ______ fruit from the cou ntryside.
A. lot of B lots of C. a ple nty of D. a little
4. I begi n to lear n to raise _____ as I can in maths classes.
A. questi ons as many
B. as eno ugh questi ons
C. as much questi ons
D. as many questi ons
5. My daughter wan ted to keep a puppy ______ that she decided to buy one with her own
pocket mon ey.
A. so much
B. very much
C. that much
D. much
6. There's ______ cha nee of putt ing an yth ing else in my suitcase--- it's too full.
A. ma ny
B. no one
C. little
D. few
7. There is______ space left in my suitcase. I can buy _______ gifts for my family.
A. no; many
B. few; no
C. a little; many
D. a little; a few
8. When I was you ng. I hated tea. But now I dri nk ____ .
A. a lot
B. little
C. en ough
D. many
9. There used to be a lot of tigers in Asia, but now there are ______ .
A. few
B. not many
C. many
D. little
10. When you exercise, the amou nt of water you n eed ____ .
A. i ncreases
B. remai ns the same
C. decreases
D. produces
11. Every student should _________ the rules. Which of the following words is not accepted?
A. obey
B. keep
C. follow D liste n to
12. The little girl was afraid of darkness, so she likes to sleep with a light ___________________ .
A. tur ned B on C. i n D. switchi ng
13. After the serious accide nt, many compla ints about the traffic lights ______ .
A. poured out
B. poured in
C. poured into
D. poured out of
14. My mum closed the door slightly without a ______ so as not to awake me.
A. sou nd
B. no ise
C. voice
D. alarm
15. When your lan guage study stays the same for a few weeks, you may _____ it.
A. give in
B. give up
C. drop
D. lose hope
16. Boys and girls! It's time for you to get ______ .
A. wash up
B. clea ning up
C. clea ned
D. wash ing up
17. We badly n eed some ______ for curi ng the patie nts.
A. fur niture
B. fur nitures
C. equipme nts
D. equipme nt
18. It's gen erous _____ him to spon sor one billi on to build a school.
A. for
B. of
C. about
D. to
19. Do you find _____ addictive to play computer games?
A. it
B. that
C. this
D. it's
20. The ______ pork in the fridge became so hard that I could n't cut it up.
A. freeze B froze n C. freez ing D. froze
21. Tom _____ go to bed earlier. He goes to bed very late and he's always tired.
A. can
B. may
C. n eeds
D. should
22. - It's a very nice film. You ______ go and see it.
——But I am not free this eve ning. What a pity!
A. must
B. ought
C. ought to
D. should n't
23. -- ______ I ________ finish my homework now, mum?
读书破万卷下笔如有神 _________________________________
----Yes, you _______ .
A. Do; ought to; ought to
B. Ought; to ought
C. ought; to; do
D. Should; /; ought to
24. You ______ be cruel to ani mals.
A. should B should n't C. need n't D. may not
25. She ______ be fini shi ng work no w. it's six o'clock.
A. ought to
B. may
C. will
D. can
26. Oh, you're bleed ing. You _____ go to hospital at on ce.
A. should better
B. had better
C. has better
D. may
27. You had ______ leave for Nanji ng the day after tomorrow.
A. better not to
B. not better C better not D. not better
28. Granny, it _____ for you to walk a while every day.
A. might be better
B. can be better
C. ought to be better
D. could be better
29. _____ excit ing game it is!
A. What B What an C. How D. How much
30. _____ big the tree is!
A. What
B. What an
C. how D How
31. _____ bad weather! We can't go for a pic nic!
A. What
B. How
C. What a how a
32. _____ hard work it is to plant so may trees around the lake!
A. What a
B. What an C What D. How
33. “ _______ ! ” the mother said to the child whe n he man aged to jump over the little log.
A. Well do ne
B. Well
C. You deserved it
D. That's not bad
34. —What's the name?
----Debbie. ______ I spell it for you?
A. Should
B. will
C. Would
D. Shall
35. - What's up _______ t oday's newspaper?
----Nothi ng new _______ some gossip about stars.
A. in; but
B. on; except
C. for; besides
D. in; and
36. The gym can ______ at most 2,000 people.
A. have B hold C. sit D. seat
37. Nobody agreed _______ what he said.
A. on
B. with c. n eed D. take
38. I'm afraid it'll _____ you much time to work out the problem.
A. spe nd
B. cost
C. n eed
D. take
39. How do you know that Joyce was a popular ______ as chief editor?
A. choice
B. choose
C. cha nee
D. choos ing
40. I saw Tom ______ football on the playgrou nd just now.
A. play ing
B. play
C. play ing with
D. to play with
41.1 would like ______ Math. I thi nk it's difficult ______ .
A. drop; to lear n
B. to drop; to lear n
C. dropp in g; lear ning
D. dropped; lear ning
42. I could n't help _____ whe n I heard his n ews.
A. laughi ng
B. to laugh
C. laugh
D. laughed
43. I don't feel like _____ an yth ing now.
A. to eat B eat ing C. eat D. ate
44. What about ______ a debate betwee n Junior One and Junior Two?
.hav ing C. to do D. going
BA. to have
读书破万卷下笔如有神 _________________________________
45. My teacher always en courages us _____ more En glish in and out of classes.
A. to speak
B. to say
C. speak ing
D. say ing
46. Do you mind my ______ the car here for a while?
A. park ing
B. park
C. to park
D. parked
47. Would you mi nd ______ a little _______ for me?
A. to making; room
B. making; room
C. to make; rooms
D. made; room
48. The n asty dump makes me feel _____ awful.
A. feel
B. fell
C. felt
D. to feel
49. -- ______ did the police do with the gang of people?
----The gang of people was in pris on because they sold the ______ p ain ti ngs for
$ 200,000.
A. How; true
B. How; fake
C. What; real D What; fake
50. -- It is said that the police are ______ clues to _______ the thief?
----Did the ______ a ny?
A. looking for; find; find out
B. finding; find out; look for
C. looking for; find out; find
D. finding out; look for; find
51. We ofte n hear the baby n ext door _____ at midni ght. Maybe the mother is not good at look ing
after her child.
A. cry
B. to cry
C. cryi ng
D. cried
52. - What happened _______ your house last night, Madam?
----Somebody _______ my house and stole some valuable things from my safe.
A. in; broke dow n
B. to; broke into
C. with; broke in
D. at; broke
53. Un der the law, every one is con sidered innocent un til proved ___ .
A. crime
B. crim inal C guilty D. guilt
54. - What do you think of Robert?
----I'm afraid _______ that he is a coward. He is eve n afraid ______ n ear a dog and
afraid ______ .
A. say ing; to go; of flying
B. to say; to going; to fly
C to say; to go; to flying D. of say ing; of going; to fly
55. We are all angry at her ______ late.
A. to be
B. being
C. is
D. was
56. ______ is lear ning.
A. Teach
B. Teach ing
C. To teach
D. Taught
57. I really remember ______ h er sometime years ago, but I can't remember where.
A. to meet
B. meet ing
C. saw
D. to see
58. The you ng man was wait ing in a doorway, _____ some _______ s un glasses.
A. was holdi ng; broke n
B. hold ing; broke n
C. to hold; break ing
D. held; break
______ 12, October ________ 4 p.m., I saw a robbery _______ on the other side of
th 59.
the road.
A. On; at; happe ning
B. On; in; happe n
C. in; at; happe n
D. At; on; happe ned
60. They fin ally succeeded ______ because of the smoke from the fire.
A. ope n
B. ope ned
C. to ope n
D. ope ning
61.1 left the window in the room ______ because of the smoke from the fire.
A. ope n
B. ope ned
C. to ope n
D. ope ning
62. Si nee it was impossible ________ a small gun from a dista nee, the murderer was probably in the
room ______ the time of the murder.
A. to aim; in
B. aimi ng; at
C. to aim; at
D. aim; on
63. —Why did n't you choose that red bicycle?
----I would prefer to choose ______ one to spare some money for some books.
读书破万卷下笔如有神_________________________________
A. a cheap
B. the cheaper
C. an expe nsive
D. the more expe nsive
64. - Whom would you like to be your assistant, Jack or David?
----If I had to choose, David would be ______ choice.
A. good B better C. the better D. the best
65. The busier he is, _______ h e feels.
A. the happily
B. happy
C. the happier
D. more happy
66. The prices of vegetables are falli ng dow n. Last week many kinds are _____ tha n
those now.
A. higher B more expe nsive C. cheaper D. much expe nsive
67. This maths problem is ______ that one.
A. so easy as
B. as difficult as
C. much difficult tha n
D. less easier tha n
68. —Do you like the two skirts?
----The yellow one is good but the gree n one looks ______ .
A. nice B better C. best D. ni cest
69. Of all the ball games, I like baseball _______ . It's really my favorite.
A. well
B. good
C. better
70. To protect our eyes is _______ t o treasure our lives.
A. importa nt
B. as importa nt as
C. more importa nt
D. the most importa nt
71.1 am sure this is not ______ model, but _______ t ha n the one you chose.
A. the lighter; lighter B the lightest; lighter
C. a light; lightest
D. the light; the lighter
72. As a marriage gift, he chose her a ______ ring tha n before.
A. the valuable
B. much valuable
C. much more valuable
D. most valuable
73. Travelli ng by train is ______ cheaper and _______ enjo yable tha n by air.
A. more; much more
B. quite; much too
C. very; very much
D. much; far more
74. Lo said one of his cous ins _____________ ATM mach ine.
A. is; a
B. was; a C are; an D. were; an
75. Don't forget there is ______ “r ” in the word "large ” .
A. an
B. the
C. a
D. one
76. The boy collected so __________ i n formati on about the dest in ati on
______ he could n't
start his
family jour ney pla n. A. few; too
B. less; few
C. less; fewer
D. fewer; less
77. This is the best way that we can finish this work with ______ money and _______ people.
A. little; less
B. less; few
C less; fewer D. fewer; less 78. The SPCA wants to raise _______ m oney to look after the an imals.
A. a lot
B. a great many C a large amou nt of D. a great n umber of 79. The ______ is a device which links your computer to the teleph one systems.
A. hardware
B. modem
C. mouse
D. software
80. Huma n beings give computers their in structi ons and tell them ____
83. I'm going to send the important letter ______ airmail.
.by C. on D. with
BA. in
读书破万卷 下笔如有神 __________________________________
84. Donny became the top stude nt in our class by _____ hard.
A. study
B. studies
C. studied An swer: BABDA CDABA DBBAB CCBAB DCDBA BCABD ACADA BBDAA BABBA ABADC ABCCB BBBAD ACBBC BBBDB BCDBA BCCBC DCBD
D best A. how to do B. what to do it 81.1 have many hobbies, _______
A. like B such as C. as 82. - The classroom is _______ clean ---- Sorry, I forgot to clea n it.
A. as; as
B. so; as
C. what to do
D. whe n to do
,I like listening to music and traveling widely. D for example _____ it was yesterday.
C. not so; as
D. more; tha n D. study ing
典型错题 1．（语文作业本）划线句中“占领”“控制”“封锁”三个词能互换使用吗？为什么？答案：不能。因为扬中等广大地区已解放，所以用“占领”一词；而江阴要塞还没攻下来，不过敌军不能任意活动，所以用“控制”一词；江阴已被我军控制，敌军想从长江逃走已无办法，所以用“封锁”一词。 错误原因：表述不清，词不达意。 改进措施：增加相关题型的练习次数。 2．（语文作业本）根据拼音写出汉字。Cuān（）升 答案：蹿 错误原因：与第一课所学的窜字混淆。 改进措施：区分两个字的不同读音和字义。 3．（语文作业本）第3课第一段中加点的“摸出”能否换成“拿出”或“取出”？为什么？ 答案：不能。“摸出”说明了老妇人十分珍惜这只蜡烛，把它藏得很深，只能用手摸索着把它拿出来。而“拿出”或“取出”则表达不出。 错误原因：知道不能替换，但不能正确的表述原因。 改进措施：引导学生从全文的角度把握个别字词的特殊含义。 4．选择恰当的词语填写在下列句子中的横线上。 推重推荐推让推崇 （1）这部著作受到学术界的________。（2）在荣誉面前大家互相________。 （3）他的高尚品德为人们所________。（4）这本书很好，应该向学生________。答案：推重推让推崇推荐
错误原因：推崇和推重两个词语混淆。 改进措施：先看词义：推崇：尊崇，十分推重。推重：对某人的思想、行为、成就等给予很高的评价，表示十分重视。据此可以看出，推重侧重于对某人一个或几个方面的重视，而推崇则倾向于对整个人的认可；即便指向于相同的一个侧面，推崇的语气明显强于推重。也可以说，推重是有所保留的认可，而推崇是毫无保留的认可。 5．课文中表现桃花源中人安居乐业的句子是___________________________。 答案：其中往来种作，男女衣着，悉如外人，黄发垂髫，并怡然自乐。 错误原因：将描写桃源景色的句子也写入其中。 改进措施：学会审题，把握问题中的关键字词。 6．用现代汉语写出下列句子的意思。 公揣囊中已空，命同来家中取钱。 答案：汤公摸了摸钱包，没有钱，就让买菜翁和自己一起去拿钱。 错误原因：将同来理解成同来的人。 改进措施：根据文意正确把握被省略的人称词，相关练习可参考课后练习三。 7．凄风。苦雨。天昏。地暗。 （这里连用四个句号，起到了什么表达效果？这里仅仅是在描写天气吗？） 答案：这里不仅是描写天气，而且在渲染气氛，“天地亦与人同哀”。连用四个句号，成为四个短句，使每个字都最大限度地发挥出表意功能。读者的阅读速度自然放慢，读两个字，停顿一下，想像一个画面。这样开头让读者一上来就感受到无限悲哀的氛围。 错误原因：理解不到位。 改进措施：理解环境描写在文章中的不同作用。
七年级下学期英语试卷 第四单元错题汇总 一、单项选择。 （）1．There isn’t _______ bread at home . A．a B．an C．some D．any （）2. ________ will he stay in this city ?Two months. A. How long B. How many C. How much D. How far （）3. Hurry up, ________ You’ll be late. A. and B. so C. or D. if （）4. That boy is simon,and the girl next to________ is Amy . A. he B. his C. him D. she （）5. Is there a new book on the table . ________. A. Yes,it is B. No,it isn’t C. Yes,there is D.No,there isn’t （）6. ________ the second turning on the right . A.Turn B. Take C. Go D.Walk （）7.What do you think of________ film about Zhan Tianyou ? It’s ________good film. A.the;the B. a;the C. the;a D. a;a 二、填空。 1．The students stopped (laugh)when the came into the class. 2．The police (抓住)the robbers yesterday. 3. Li Le,our (班长)helped the police catch the robber. 4. Take the second __________(拐弯) on the left. 5．There is less t__________ in this area than in Nanjing. 6．There is a hospital (cross) the street. 7．Several men are standing at the c ,talking to some police officers. 三、句型转换。 1．All of us are teachers.（否定句） _________ _________ of us are teachers? 2．Is that their car?（同义句）
第十六章《二次根式》易错题 一、选择题 1. 当a>0, b >0时，n是正整数，计算'- n的值是( ) A. (b - a)二、丄」：. (a n b3—a n+1b2) i C. (b3- ab2)'二D. (a n b3+a n+1 b2) i 错答：D 考点：二次根式的性质与化简。 分析：把被开方数分为指数为偶次方的因式的积，再开平方，合并被开方数相同的二次根式. 解答：解：原式=-, =a n b3 -i - a n+1 b2 i =(a n b3- a n+1 b2) -i. 故选B. 点评：本题考查的是二次根式的化简?最简二次根式的条件：被开方数中不含开得尽方的因式或因数. 点评：解答此题，要弄清二次根式的性质：_7=|a|，分类讨论的思想. 2. 当X V- 1 时，|x-q；：」：：；'-2| - 2|x - 1|的值为( ) A. 2 B . 4x - 6 C . 4 - 4x D . 4x+4 错答：C 考点：二次根式的性质与化简。 分析：根据x V - 1，可知2 - x > 0 , x - 1 V 0，利用开平方和绝对值的性质计算. 解答：解：T x V - 1 ：2 - x> 0, x - 1 V 0 ?|x -i ?--2| - 2|x - 1| =|x - (2 - x) - 2| - 2 (1 - x) =|2 (x - 2) |-2 (1 - x) =-2 (x - 2) - 2 (1 - x)
故选A. 点评：本题主要考查二次根式的化简方法与运用： a > 0时,Ha ; a v 0时，身匕土= - a; a=0时，：：；...二 =0 ； 解决此类题目的关键是熟练掌握二次根式、绝对值等考点的运算. 3?化简|2a+3 [1+ ：一「「I 丁_(a v - 4)的结果是( ) A. 一-―-3a B. 3a - C . a+ 山D. - - 3a 2 2 2 2 错答：B 考点：二次根式的性质与化简；绝对值。 分析：本题应先讨论绝对值内的数的正负性再去绝对值，而根号内的数可先化简、配方，最后再开根号，将两式相加即可 得出结论. 解答：解：??? a v - 4, ?'2a v - 8, a - 4 v 0 , -2a+3 ―-v —8+3 —v 0 =-2a - 3 +4 - a= - 3a . 2 2 故选D . 点评：本题考查的是二次根式的化简和绝对值的化简，解此类题目时要充分考虑数的取值范围，再去绝对值，否则容易计算错误. 4 .当x v 2y时，化简叮一得( ) A. x (x - 2y) B . -厂C . ( x- 2y) ■■- D . (2y - x) ” z 错答：C 考点：二次根式的性质与化简。
八年级英语上册典型错题及解析 ( )1. Good food and exercise ______ me to study better. A. help B. helps C. helping D. to help 此题为判断和理解型试题, Good food and exercise 是两项事物，因此主语不是第三人称单数形式，因此，答案为 A. ( ) 2. Is her lifestyle the same ______ yours or different? A. as B. in C. at D. to 本题考查固定短语 the same as 的用法，答案为A. ( )3. My father likes football. But he ____ it. He only ____ football matches on TV! A. plays, watches B. play, watch C. doesn’t play, watches D. plays, doesn’t watch 本题考查一般现在时的用法，首先根据题中My father likes football.和But的提示, 判定第一个空应选择doesn’t play,又根据on TV而得到答案watches, 故答案为C. 4. Grandma is pretty healthy because she ___________ every day. 根椐所给词语和题意理解为：grandma 身体健康的原因是每天锻炼身体，因此，本题答案为: exercises. 5. You must ________ to eat less meat. must是情态动词，其后应该接动词原形，根椐题意，本题答案为try. 6. A: I ______ _________ ________ (feel) well now. B: You should go to the doctor. 根据You should go to the doctor. 推断出答案应该是：am not feeling。 7. He believes that I should __________(have) a good habit. should 为情态动词，其后应该加动词原形，因此答案为have. 8. 我妈妈说我应该晚饭尽量少吃肉。 My mom said that I should __________ _________ eat less meat for dinner. 本题考查动词短语try to do sth. 意为: 尽量/努力/试图做某事, 所以答案为try to. 9 What do you usually do _______ Saturdays?( ) A. at B. on C. in B, 表示在星期几，用介词 on。 10. I’m sorry I have to _______ for the English test.( ) A. study B. studies C. studying A, have to 后面接动词原形。 11. Thanks for ___________.( ) A. asking B. ask C. asks A for是介词，其后应该接动名词作介词宾语。 12 A: Must I clean my room, mom? B: No, you ______.( ) A. don't B. needn't C. aren't B 用must 提问时，否定回答应该用：needn't。 13. ( ) The girl isn’t short. She is __________ than before. A. short B. tall C. taller D. shorter C，根据题意，又than经常与比较级连用。
八年级下易错题集（一） 一．选择题（共16小题） 1．代数式中，分式的个数是（） 2．已知对任意实数x，式子都有意义，则实数m的取值范围是（） 3．（龙岩模拟）当式子的值为零时，x等于（） 4．若分式的值为正，则x的取值范围是（） ＞﹣﹣且5．分式中的x，y同时扩大3倍，则分式的值（） 是原来的6．下面各分式：，其中最简分式有（）个． ． 分钟分钟C 分钟 D． 分钟 8．计算的结果为（） C D． 9．计算的结果是（） D．10．（鸡西）若关于x的分式方程无解，则m的值为（） 11．（扬州）若方程=1有增根，则它的增根是（）
．C D． 13．（金华）小明在一直道上骑自行车，经过起步、加速、匀速、减速之后停车．设小明骑车的时间为t（秒），骑．C D． ﹣0.5x﹣1中，一次函数有（） 14．下列函数：①y=﹣8x、②、③y=8、④y=﹣8x2+6、⑤y= ） 16．已知点（﹣4，y1），（2，y2）都在直线y=﹣x+2上，则y1，y2大小关系是（ 18．（清远）计算：（π﹣3）0+2﹣1=_________． 19．等腰三角形的周长是16，写出底边长y与一腰长x的函数关系式____，自变量x的取值范围是________．20．（贵州模拟）在函数y=中，自变量的取值范围是_________． 21．已知函数y=（k﹣1）x+k2﹣1，当k_________时，它是一次函数，当k=_______时，它是正比例函数．22．（包头）若一次函数y=ax+1﹣a中，y随x的增大而增大，且它的图象与y轴交于正半轴，则|a﹣1|+= _________． 23．（襄阳）若一次函数y=2（1﹣k）x+k﹣1的图象不过第一象限，则k的取值范围是_________． 24．将直线y=2x沿x轴的正方向平移1个长度单位，得到直线_________． 25．直角坐标系中，直线y=2x+3关于原点对称的解析式为_________． 三．解答题（共5小题） 26．通分：，．
七年级下学期错题集（6） 词汇语法部分 ( )1.Shanghai is one of ______ in the world https://www.doczj.com/doc/6318732780.html,rgest city B.the largest cities https://www.doczj.com/doc/6318732780.html,rgest cities D. the large city ( )2.Shenzheng is ______ its beautiful views. A.known as B.famous for C.know as D.knew as ( )3.Tom never goes to the cinema on Sunday,_____? A.does he B.doesn’t he C.isn’t he D.is he ( )4.A:I’d like to see “Police Story”.I like action films B:______ A.So do I B.Neither do I C.So am I D.Neither am I ( )5.A:Where is Tom? B:He______ to the teachers’ office. A.have gone to B.has been to C.went to D.has gone ( )6.My brother has _______ books than I. A.fewer B.few C.little D.less ( )7The boy was born____ the afternoon of July 5th. A.in B.on C.at D.for ( )8.___do you _____the visit to the Bund? --It’s is wonderful. A.What like B.What think of C.How think of D.How think ( )9.Alice is good at_____.She wants _____ a singer in the future. A.singbe B.sing to be C.singing be D.singing to be ( )10.we______ anything there A.needn’t B.needn’t to buy C.don’t need buy D.don’t need to buy ( )11.It took him_____ to finish the hard job. A.two and a half days B.a half and two days C.two day and a half D.two and half days. ( )12.He_____ here since last year. A.has been in B.has been to C.was D.has been ( )13..The teacher told his students _______ because it was bad for their health A.didn’t smoke B.to not smoke C.not to smoke D.not smoke ( )14I don’t know if it will come back tomorrow。If he___ tomorrow. I____you. https://www.doczj.com/doc/6318732780.html,es will call B.will come will call https://www.doczj.com/doc/6318732780.html,es call D.will come call ( )15.What will you do if it_____ tomorrow. A.doesn’t rain B. not rain C.don’t rain D.not rains ( )16.How are you ______your tour guide? A.get on B.get on with C.getting on with D.getting on ( )17.____great fun it is to have a picnic in spring! A.How B.What C.What a D.How a ( )18.She usually prepares lessons very late_______ midnight A.at B.after C.before D.until ( )19._____ beautiful the flowers are! A.What B.What a C.How D.How a ( )20.Hiow much did every child ___________ for a film ticket? A. cost B.pay for C.paid D.spend ( )21.Take your glasses with you,_____you won’t enjoy the play. A.so B.or C.and D.therefore ( )22.Peter decides____to Beijing with his sister. A.go B.to go C.gone D.going ( )23.It’s fun____ a bicycle with my father in the park. A.to ride B.riding C.rides D. ride
1、如图①，分别以Rt△ABC三边为直径向外作三个半圆，其面积分别用S1， S2，S3表示，则不难证明S1=S2+S3． （1）如图②，分别以Rt△ABC三边为边向外作三个正方形，其面积分 别用S1，S2，S3表示，写出它们的关系；（不必证明） （2）如图③，分别以Rt△ABC三边为边向外作正三角形，其面积分别 用S1，S2，S3表示，确定它们的关系并证明； （3）若分别以Rt△ABC三边为边向外作三个一般三角形，其面积分别用S1，S2，S3表示，为使S1，S2，S3之间仍具有与（2）相同的关系，所作三角形应满足什么条件？ 2、王伟准备用一段长30米的篱笆围成一个三角形形状的小圈，用于饲养家 兔．已知第一条边长为a米，由于受地势限制，第二条边长只能是第一条边长的2倍多2米．（1）请用a表示第三条边长；（2）问第一条边长可以为7米吗？请说明理由，并求出a的取值范围3）能否使得围成的小圈是直角三角形形状，且各边长均为整数？若能，说明你的围法；若 不能，说明理由．
3、如图所示，将一根长为24cm的筷子，置于底面直径为5cm，高为 12cm的圆柱形水杯中，设筷子露在外面的长为hcm，则h的取值范围是（） 4、若5x+32的立方根等于-2，求x+17的平方根 5、若a.b 均为正整数，且a ＞根号7，b＜2的立方根，则a+b 的最小值是（） 6、如果正方形ABCD的两个相对顶点为B(3,0),D(0,3)，那么A、C两点的坐标 分别为： 7、已知点A（m+1，-2）和点B（3，m-1）,如果直线AB∥x轴，那么m的值为 （）, 如果直线AB∥y轴，那么m的值为（） 8、在平面直角坐标系中，点P在x轴的上方，点P到y轴的距离为1，且OP=2， 画出图形并求P点坐标。 9、已知点M(x,y)与点A(-1/5,n)关于x轴对称，与点B(m,1/2)关于y轴对称，求 代数式25x2+20xy+4y2+2013的值 10、如图，平面直角坐标系中有四个点，它们的横纵坐标均为整数．若在此平面直角坐标系内移动点A，使得这四个点构成的四边形是轴对称图形，并且点A的横坐标仍是整数，则移动后点A的坐标为（）．
苏教版初一下学期英语错题集(二2) 2011.04.17 一、翻译词组(或写出单词)。 1. 许多不同的中餐馆 2. 运动中心 3. 很少的空气污染 4. 西餐馆 5. 像这样的高楼 6. 其他的什么 7.在……旁边 8. 了解不同国家的家 9. : the place you usually eat meals in (根据英文解释写相应英文单词) 10.获得第一 二、根据汉语提示完成下列句子。 1. 上个星期那些孩子在公园里玩得很开心。 Last week ,the children in the park. 2. 其他房间在底低楼和一楼。 The other rooms are . 3. 长途火车旅行之后他一定很累。 He after . 4. 你今天想去书店吗？ you go to the bookshop today? 5. 二楼没有其他的房间。 There are on the floor. 6. 西蒙在三楼有一个电脑房。 Simon a computer room the floor. 7. 我理想的房子有60米长，40米宽。 My long and wide. 8. 一半以上的成员反对这个计划。 of the members are against the plane. 三、根据句意，首字母或中文提示完成单词。 1. Elephants are the biggest animals on l .
2. Are there any s for my uncle on the table? 3. We all like to go for a picnic in the open a . 4. I traveled in Beijing and bought many s . 5. There are two big s in the town. You can go shopping until ten o’clock at night. 6. The plane (离开) at 12:30. 7. Mr. Smith t us Maths last term. 8. John liked to w his hair very long. Some of his friends t it looked Like a girl’s hair. 9. The room is too small. We even don’t have enough space for a f . 四、用适当的介词或介词短语补全下面的句子。 1. Amy and I always walk home together because her home is mine. 2. It’s cold but warm in winter in Liaoning. 3. the car, there is a man lying on the road, so it can’t move. 4. — Can I take a message you? — Sure. 五、单项选择。 （）1. I’m sorry I can’t your name. A. think about B. think out C. think over D. think of （）2. Tony got up early get the first bus. A. so as that B. in order to C. in order that D. that （）3. — go fishing after we finish our homework? — Good idea. A. Why not you B. Why not to C. Why not we D. Why not （）4. The tunnel is already open to traffic, so it will take us time to go to Pudong International Airport. A. less B. a few C. a little D. fewer （）5. Last night, there was a food accident. Ten were ill but no were lost. A. children; lives B. children; life C. child; lives D. child; life
八年级上科学好题、易错题精选推荐（二） 1．某研究性学习课题小组，在教师的指导下，完成了“水的体积随温度变化”的研究，得到如右图的图线。根据这个图线，说明水的温度从8℃降低至2℃的过程中，等体积的水的质量（ c ） A、先变小后变大 B、保持不变 C、先变大后变小 D、一直变大 2．下列关于水的性质的叙述中，属于化学性质的是（ D ） A、降温到0℃，水结成冰 B、加热到100℃，水变成水蒸气 C、水蒸气遇冷，凝结成水 D、给水通电，生成氢气和氧气 2．对密度定义式ρ=m/V的下列几种理解中，正确的是（D ） A、密度与物体的质量成正比 B、密度与物体质量成正比，与其体积成反比 C、密度与物体的体积成反比 D、密度是物质本身的一种特性与物体的质量和体积无关 4．人们常说“铁比木头重”，这句话的实际含义是（C ）A、铁的质量比大头大 B、铁的重力为比木头大 C、铁的密度比木头大 D、木头的体积比铁大 5．人的密度跟水的密度差不多，请估算一个中学生的体积最接近下列哪一个值（ B ） A、50m3 B、50dm3 C、50cm3 D、50mm3 6．古人称黄河是“一石水，六斗泥”，经测定黄河水每立方米的平均含沙量约为35kg，合每立方厘米含沙量约为 （ D ）
A、1 g B、1 g C、3.5×10-1g D、3.5×10-2g 7．一只最多能装下500克水的瓶子，也能装下500克的（ D ）物质柴油酒精汽油浓硫酸密度（千克/米3）0.85×1030.80×1030.71×103 1.84×103 A、柴油 B、酒精 C、汽油 D、浓硫酸 8．天平两端各放一块铝块和铁块，天平平衡，则铝块和铁块的质量之比是 1:1 ，密度之比是 27:79 ，体积之比是 79:27 。 9．有四个容量都为500毫升的瓶子，分别装满海水、纯水、酒精和汽油，那么装的质量最多的是（ρ海水＞ρ纯水＞ρ酒精＞ρ汽油） （ A ） A、海水 B、纯水 C、酒精 D、汽油10．一支正在燃烧的蜡烛，它的（ A ） A、质量不断减少，密度不变 B、质量不断减少，密度也减小 C、质量不变，密度也不变 D、质量不变，密度减小 11．医院里有一人氧气瓶，它的容积是10dm3，里面装有密度为2.5kg/m3的氧气，某次抢救病人里去了5g氧气，则瓶内剩余氧气的密度为（ B ） A、1 kg/m3 B、2 kg/m3 C、2.2 kg/m3 D、2.5 kg/m3 12．关于压力，下列说法正确的是（ C ） A、压在物体表面上的力叫压力 B、压力的大小一定等于物体的重力 C、压力的方向一定垂直于受压物体表面 D、压力的方向一定垂直于水平地面 13．书包带宽5cm，与肩部接触部分长度为35cm，总质量为7kg，小红选择这种书包的理由及她肩部所受压强大小正确的是（ A ）书包带有两条 A、减小压强；2×103Pa B、增大压强；2×102Pa C、减小压强；2×104Pa D、减小压力；2.45Pa
人教版数学八年级上册 易错题难题整理含答案+易错题及答案 人教版数学八年级上册易错题难题整理含答案 一、选择题（把正确答案的代号填在下面对应的表格中，每小题3分，共30分） 3、下列说法中，①一组数据的中位数只有一个②一组数据的中位数可能是这组数据中的数，也可能不是这组数据中的数 ③一组数据的众数可能有多个 ④一组数据的众数是这组数据中出现次数最多的数据的次数⑤一组数据的众数一定是这组数据中的数 正确说法的个数有（ ） A 、1个 B 、2个 C 、3个 D 、4个 5、下列说法正确的有（ ） （1）数轴上的点不是表示有理数，就是表示无理数；（2）实数a 的倒数是 a 1 ；（3）带根号的数都是无理数；（4）两个绝对值不相等的无理数，其和、差、积、商仍是无理数。 Ａ、1个 Ｂ、2个 Ｃ、3个 Ｄ、4个 内容补充 一个数的平方=它本身这个数0，1 一个数的平方根=它本身这个数是0，1 一个数的算术平方根=它本身这个数是0， 一个数的立方等于它本身，这个数是－1，0，1 一个数的立方根=它本身这个数是－1，0，1 6、一个自然数的算术平方根为m ，则与这个自然数相邻的下一个自然数是（ ） Ａ、1+m Ｂ、 12+m Ｃ、12+m Ｄ、1+m 分析：此题注意审题 二、填空题 11、某市对全市3万名初中学生的视力进行了一次抽样调查，得到如图所示的统计图。在这次调查中，所选取样本的容量是 ；如果视力在4.9到5.1之间（含4.9与5.1）为正常，那么全市大约有 名初中生视力 是正常 的。
12、设10的整数部分为a ，小数部分为b ，则代数式b （10+a ）的值等于 。 根号9<根号10<根号16，所以3<根号10<4，所以，a=3 b=【根号10-3】 所以，b （10+a ）=【根号10-3】【根号10+3】 所以利用因式分解的结果为1 13、比较大小：-15、如图所示，AD ＝4，CD ＝3，∠ADC ＝90°，AB ＝13，BC ＝12，该图形的面积等于 . 则x= ； 16、已知x 满足（x-1）3=-27 8 ,17、若不等式组???b x a x 的解集为x ﹥a ，则a 与b 的关系是 。 注意等号 18、一个水池有甲、乙两个进水管。单独开甲管，6小时注满全池，两管同时开，3小时注满全池。如果设单独开乙管x 小时注满全池，由此得到方程 。 二、填空题 11、240，7500； 12、1 13、﹤，﹥ 14、4+7或4-7 15、24 16、-32，y ≥21 17、a ≥b 18、61+x 1=3 1 三、解答题 20、（每小题4分，共16分）计算： （1）因式分解 题略【注意区别计算，结果要逐步考察】
八年级英语下册错题集 Standardization of sany group #QS8QHH-HHGX8Q8-GNHHJ8-HHMHGN#
英语期末总复习 1．___times do you play sports every week——Twice A．How often B．How much C．How many D．How long 2．Getting up early，doing exercise，eating a lot of vegetables are all good___。 A．habits B．ways C．sports D．things 3．My eating habits___yours． A．are the same as B．is the same as C．is same as D．are the same for 4．He often gets to school late___be lives near the school．A．because B．as C．although D．but 5．Jack often helps his father ___in the garden． 6．——What do you want to be ——A basketball my parent___me to be a doctor A．help B．want C．make D．have 7．I didn’t watch the basketball game last ’s the r____of it 8．——Is your brother in GuangZhou now ——Yes,he will be back in ___ten days A．other B．others C．the other D．another 9．His father left without____ word A．say B．to say C．said D．saying 10．___them home A．Take B．Bring C．To take D．To bring 11．The old man is___good health A．in B．at C．of D．with 12．Come to ask me if you have___qestions A．some B．any C．much D．a lot 13．We should keep our classroom____ A．cleaned B．clean C．cleaning D．to clean 14．He must___his sister with her math A．try help B．trying to help C．trys to help D．try to help 15．．Are you ___from America ——No,none of us A．both B．all C．any D．either 16．This kind of cake looks____and smells____ A．good,well B．well,good C．good,good D．well,well 17．——Did you remember to tell him about my birthday ——Sorry,I f____ it 18．What are they doing for vacationThey are just r____books at home 19．The hospital is____far from the station A．quiet B．quite C．much D．more 20．He is too young．He can____look after himself A．hardly B．hardly ever C．never D．ever 21．Shooting is a healthy sport,____
Unit 2 Neighbours 一、根据中英文释义或首字母写出单词。 1.Amy lives next to me. We are n . 2.There are many interesting places in my hometown. Many v come here every year. 3.My mother (担心) about her granny’s health very much. 4.We often look for some (信息) on the Internet. 5.Which colour do you like b , blue or yellow? 6.You will feel (生病的) after having too much sea food with beer. 7.--How long does it take G44 to get to Xuzhou from Nanjing? --Let’s c it on the Internet. 8.Thousands of (游客) come to the Palace Museum every day. 9.There are a lot of (公司) in Sunshine Town. 10.I think different people have different (the ability to do something well). 11.The volunteers are going to work in two (社区) this Sunday. 12.Be careful! The window glass is (损坏的). 13.Jack has a dog just (像) yours. 14.There are supermarkets, r and a hospital around my school. 15.Is there any p talking in the house? Do you hear the voice? 二、选词填空。 1.--Does your father go to work by car? --No. He wants to live green life and always go to work on bus. (a, /) 2.The song great, let’s to it, can you it? (hear ,sound ,listen)
勤冠教育错题集 Ⅰ.Choose the best answer (选择最恰当的答案) 1.What’s your view ____ keeping pets？ A.on B. for C. of D. to 2.The more English news paper you read，the____ you will do in your English. A.better B. good C. well D. best 3.Could you tell me ____? A.when did we have an English oral test B.when we’ll have an English oral test C.how did we have an English oral test D.what we were going to do the next day 4.— Would you like some more coffee？ —Yes，please，but only____. A.few B. a few C. little D. a little 5.Can you write letters ____ English？ A.With B. by C. in D. for 6.If you don’t know ____he said，you only nod and laugh. A.how B. why C. what D. when 7.Li Hui，____ monitor of our class，is writing letter now. A.a B. an C. the D. / 8.The reporters ____ to proofread themselves.
13.2--13.3错题集 一、选择题 1、下列说法正确的是（） A.面积相等周长相等的两个三角形全等 B.全等三角形指形状完全相同的三角形 C.全等三角形周长相等 D.所有等边三角形全等 2、下列不能唯一确定一个直角三角形的是（） A.已知两直角边 B.已知一直角边和一斜边 C.已知一斜边和一锐角 D.已知两直角边 3、下列说法正确的是（） A.有两条边分别相等的两个三角形全等 B.一条直角边和一个锐角分别相等的两个直角三角形全等 C.有一条边相等的两个等腰直角三角形全等 D.两条直角边对应相等的两个直角三角形全等 4、下列命题：①两个三角形中有两边及第三边上的中线对应相等的两个三角形全等；②两 边及第三边的高对应相等的两个三角形全等；③两边及第三边的高对应相等的两个锐角三角 形全等；④锐角为30的两个直角三角形有一边相等，则这两个三角形全等；正确的是（） A.①② B.②③ C.③④ D.①③ 5、在△ABC中，AB=AC,AB的中垂线与AC所成的角为50，则∠B等于（） A.70 B.20或70 C.40或70 D.40或20 6、如图：在△ABC中，AD是∠BAC的平分线，DE⊥AC于E，DF⊥AB于F，且FB=CE，则下列结论：：①DE=DF，②AE=AF③BD=CD，④AD⊥BC。其中正确的个数有（） A：1个 B：2个 C：3个 D：4个 第7题第8题 7、如图：在不等边△ABC中，PM⊥AB，垂足为M，PN⊥AC，垂足为N，且PM=PN，Q在AC上，PQ=QA，下列结论：①AN=AM，②QP∥AM，③△BMP≌△QNP，其中正确的是（） A：①②③ B：①② C：②③ D：① 9、如图：直线a，b，c表示三条相互交叉环湖而建的公路，现在建立一个货物中转站，要 求它到三条公路的距离相等，则可供选择的地址有（） A：1个 B：2个 C：3个 D：4个
1、Every year many c came to the Himalayas. 2、She r her own life to help a disabled woman. 3、The football match has to be put off next week because of the s . 4、Did you know that China is oneof （old）countries in the world？ 5、Qomolangma is higher than any other （mountain）in the world. 6、There are many (difficult) in the world.It’s a lot bigger than the population of the US. 7、China is larger than in Aria. A、any countries B、any country C、any other country D、all the countries 8、You speak English as as Tom . A、good；does B、good；is C、well ；does D、well；is 9、The math problem is to work out.A、much difficult B、more difficult C、difficult enough D、too difficult 10、The Pacific Ocean is 155.6 million square kilometers in 11、It’s not so as yesterday，so there are people sitting in the square。A、colder；fewer B、warmer；fewer C、cold；more D、warm；more 12、Which of the two girls is Jack’s sister? A、The tallest B、T aller one C、The taller one D、Taller 13、Usually Xiao Li spends time doing homework than Xiao Chen does . A、little B、less C、few D、fewer 14、He has a lot of work every day. A、do B、to do C、doing D、done 15、He always lies in bed and helps his wife to do anything A、ever B、always C、never D、usually