当前位置:文档之家› 人教版八年级上总复习:1-6单元易错题整理

人教版八年级上总复习:1-6单元易错题整理

人教版八年级上总复习:1-6单元易错题整理
人教版八年级上总复习:1-6单元易错题整理

八年级上Units1-6易错基础题

一、用所给单词的适当形式填空。

1.I’m spending time ____________(visit) my friends in China.

2.____________(cook) is fun, so I like ____________(cook).

3.Don’t make so much noise, my grandpa ____________(sleep).

4.Her father ____________ (leave) for Beijing in three days.

5.It’s December now, the New Year ____________(come).

6.Lisa decides ____________ (pay) 100 for that beautiful coat.

7.Annie finished ____________ (do) her homework just now.

8.Do you need ____________ (watch) your son when he is playing?

9.We felt ____________ (excite) because of the _____________ (excite) movie.

10.The sad end of the movie made us ____________ (cry).

11.It takes about 30 minutes ____________ (get) from my home to school.

12.Is it difficult ____________ (do) the math exercises?

https://www.doczj.com/doc/8c6885811.html,st year, Eric always ____________ (ride) to school.

14.Do you know if they are ____________ (plan) for their vacation?

15.David, why not ____________ (go) out to play football?

16.Oh, I am so sorry ____________ (tell) that you got an F in the test.

17.Tomorrow is April ____________ (twelve).

18.Are there any ____________ (man) clothes selling in the store?

19.With ____________ (who) will you go?

20.I am ____________ (bad) at math than last year.

21.You are too serious, can you be ____________(friendly).

22.Mike is ____________ (funny), and Jack is ____________ (funny), too.

23.This picture is far ____________ (beautiful) than that one.

24.Maria is ____________ (later) of the two girls.

25.Her mother is ____________ (busy) of her parents.

26.It’s winter now; the weather is getting ____________ (cold and cold).

27.The ____________ (few) exercises you do, the ____________ (difficult) you may feel.

28.She got ____________ (little) water than I ____________ (do).

29.My dictionary is ____________ (new) than ____________ (he).

30.Alicia, who do you think is ____________ (lazy) of the two __________ (woman doctor)?

31.My father ____________(exercise) every day last year.

32.I went to the park ____________ (two) a week.

33.Sometimes we went ____________ (swim) in the river when we were young.

34.My favorite sport is ____________ (play) table tennis.

35.____________ (drink) a lot of water is good for you.

36.He’d like _____________ (skate) today because he likes ___________ (skate).

37.Tom is often ill, I think he is kind of ____________ (health).

38.My father usually drinks litter water, so I think his ___________ (drink) habit is not good.

39.James told me he could help me __________(finish) my homework.

40.____________ (draw) a picture for your mother and she will be happy.

41.Do you know horses have four ____________ (foot)?

42.The man is so old that he only has one ____________ (teeth).

43.He stopped ____________ (watch) TV ____________ (go) bed.

44.Nobody ____________ (believe) his words yesterday.

45.I t’s kind of difficult ____________ (learn) English well.

46.We hope ____________ (have) a happy holiday.

47.I feel ____________ (exciting) when I learn about that news.

48.Every day the boy likes to have a little ____________ (orange).

49.I had a ____________ (back), so I had to see a doctor yesterday.

50.Because of his help, my English is ____________ (well) than before.

二、单项选择。

1.There are more apples in this tree than _________.

A. that tree

B. in that tree

C. other trees

D. any tree

2.You can ask the girl over there for much ________ about the meeting.

A. map

B. ticket

C. water

D. information

3.His team always ________ our team ________ the matches last year.

A. beat; in

B. beated; in

C. beats; in

D. beats; at

4.What should a good teacher ____________?

A. like

B. likes

C. be like

D. look like

5.Old Henry made a good chair ____________.

A. to sit

B. sitting

C. to sit on

D. sitting on

6.The boss wants to make ________ money with ________ time and ________ workers.

A. more; less; less

B. less; more; more

C. much; fewer; less

D. more; less; fewer

7.What does he ________ by ________ so?

A. means; talking

B. mean; speaking

C. mean; saying

D. means, saying

8.The cakes in this basket are ________ than ________ in that basket.

A. deliciouser; that

B. more delicious; they

C. less delicious; those

D. more delicious; them

9.Tokyo is larger than ________ in Canada.

A. any other city

B. any city

C. the other cities

D. any other cities

10.This movie is not so ________ as that one.

A. some more interesting

B. any more interesting

C. interesting

D. much interesting

11.Which one is ________, Jack or Toby?

A. much more athletic

B. the more athletic

C. much athletic

D. more much athletic

12.We are not going to take part in the match, they ________, ________.

A. won’t; too

B. aren’t; too

C. don’t; either

D. aren’t; either

13.Can you tell me ________?

A. when are you going

B. when you are going

C. who are you talking

D. who you are talking

14.– Can you come to my party? - I wish I could, ________ I have to do my homework.

A. and

B. so

C. but

D. or

15.– Sorry, but I have to look after my baby sister. – That’s too ______, maybe _____ time.

A. bad; another

B. bad; other

C. good; the other

D. bad; others

16.–Would you like ________ cake? - Thanks, but I’m full.

A. more

B. another

C. more one

D. the other

17.– Mom, must I clean the room today? - No, you ________. You can do it tomorrow.

A. can’t

B. shouldn’t

C. mustn’t

D. don’t have to

18.One of his two brothers ________ a doctor, ________ is a postman.

A. are; other

B. are; the other

C. is; the other

D. is; other

19.– How much did you _______ for the coat? - It just _______ me 90 yuan.

A. spend; takes

B. spent; cost

C. paid; takes

D. pay; cost

20. A large number of kids ________ in the classroom. The number of them ________ 101.

A. is; are

B. is; is

C. are; is

D. are; is

21.When we were young, we ________ our parents.

A. depend on

B. depend for

C. depended on

D. deepened

22.– Look! The man over there ________ be Mr. Brown.

– No, it ________ be him. He is having a meeting in Shanghai now.

A. must; can’t

B. must; mustn’t

C. can; can’t

D. can’t mustn’t

23.My mother said I could stay out late, but I ________ be back by 11:00.

A. can

B. must

C. might

D. may

24.- ________ is he going to be back? - Maybe in 5 or 6 days.

A. How long

B. How much

C. How often

D. How soon

25.My home is about 10 ________ school.

A. kilometers away

B. kilometers to

C. kilometers to

D. kilometers from

26.They were too tired, so they wanted to stop ________.

A. to walk

B. rested

C. walk

D. to rest

27.– Is the store ________ the park? - No, it’s ________ the parl.

A. far to; near from

B. far from; near from

C. far from; near

D. far to; near to

28.________ of the students are form the countryside.

A. Two hundreds

B. Two hundred

C. Hundred

D. Hundreds

29.I usually go to school ________.

A. on the car

B. in car

C. by cars

D. in the car

30.I ________ her ________ very late last night.

A. found; till

B. didn’t find; till

C. look for; until

D. didn’t find; until

31.I forgot ________ an umbrella to school yesterday, so I bring another one today.

A. bringing

B. to bring

C. bring

D. brought

32.His father went to America ________ a cold March morning.

A. at

B. on

C. in

D. after

33.It’s good to drink green tea ________.

A. with anything

B. without nothing

C. with nothing

D. without something

34.________ are they ________?

A. What; talking

B. Who; talking

C. What; talking with

D. Who; talking about

35.– Do you know ________ he is going to stay there? - I’m not sure, maybe in May.

A. what time

B. how long

C. how soon

D. when

36.I don’t like coffee ________ too much sugar in it.

A. have

B. with

C. and

D. had

37.— __________? — He never has a headache.

A. What’s the matter with him

B. Is he feeling well now?

C. Does he have a headache

D. How often does he have a headache

38.— Does your mother often go to the movies? —,she doesn’t like movies at all.

A. Ever

B. Never

C. Some times

D. Usually

39.—There are 85% students watching TV every day. —So we know students do it.

A. all

B. some

C. most

D. no

40.—Would you like to drink? —Yes, please.

A. anything

B. something

C. nothing

D. some

41.He tries English. And he practices English every day.

A. to learn; to speak

B. learning; speaking

C. to learn; speaking

D. learning; to speak

42.it is rainy today, he still works outside.

A. Although; but

B. But; although

C. /; although

D. Although; /

43.Mrs. Smith is very .She has to sit down and rest every five minutes when she works.

A. well

B. healthy

C. unhealthy

D. good

44.The teachers make the students _____ a lot of homework every day.

A. do

B. to do

C. doing

D. did

45.I think walking is _______ our health.

A. good at

B. bad at

C. well in

D. good for

46.That meat is ______expensive. Don’t buy _________ of it.

A. too much ; much too

B. much too ; much too

C. too much; too much

D. much too ; too much

47.—Do you think it’s going to rain over the weekend? —____________.

A. I don’t think it.

B. I don’t think

C.I think not so

D.I don’t think so.

48.It’s good __________ your health _________ milk.

A. for , to drink

B. of , to drink

C. for , drink

D. for ,drinks

49.—You are stressed out. You should listen to some music.

—That ____ a good idea.

A. sounds like

B. sounds

C. like

D. sound like

50.— When did your stomachache start? — ________.

A. About two days

B. Two days later

C. About two days ago

D. For two days

三、按要求转换句型。

1.I think Mary may be at home.(同义句转换)

I think ____________ Mary ____________ at home.

2.We all should drink something.(改为否定句)

We all ____________ drink ____________.

3.Who will look after the sick baby? (同义句转换)

Who will ____________ ____________ ____________ the sick baby?

4.He has a sore throat.(对划线部分提问)

What’s ____________ ____________with ____________?

5.Toby’s birthday party began at 4:30. (对划线部分提问)

____________ ____________ Toby’s birthday party ____________?

6.To eat too much is bad for you. (同义句转换)

____________ bad for you ____________ ____________ too much.

7.They are having dinner now. (同义句转换)

They are having dinner ____________ ____________ ____________.

8.What's wrong with your sister? (同义句转换)

What's____________ ____________with your sister?

9.She has a sore eye. (同义句转换)

There is something ____________ ____________her eye.

10.My head hurts. (同义句转换)

I ____________ a ____________.

11.I practice the piano every day.(对划线部分提问)

____________ ____________ do you practice the piano?

12.Lin Ming does his homework every evening.(对划线部分提问)

____________ ____________Lin Ming ____________ every evening?

13.Chen Jie always helps Lily with her English. (改为否定句)

Chen Jie ____________ helps Lily with her English.

14.My father did exercise yesterday. (改为否定句)

My father ____________ ____________ exercise yesterday.

15.My friend Lisa often goes sightseeing. (用next week改写句子)

My friend Lisa ____________ ____________ ____________ next week. 16.Her mother went shopping by subway. (同义句转换)

Her mother ___________ the subway ___________ ___________ shopping.

17.The little girl sleeps nine hours. (对划线部分提问)

____________ ____________ ____________ does the little girl sleep?

18.We slept nine hours when we were kids. (对划线部分提问)

____________ ____________ ____________ you sleep when you were kids?

19.The weather there was great. (对划线部分提问)

____________ ____________ the weather there?

20.The rope is about 20 meters long. (对划线部分提问)

____________ ____________ is the rope?

21.There is only one apple on the table. (对划线部分提问)

___________ ___________ ___________ ___________there on the table?

22.They pour 2 teaspoons of milk into the blender. (对划线部分提问)

____________ ____________ milk do they pour into the blender?

23.How much is the T-shirt? (同义句转换)

____________ ____________ ____________ of the T-shirt?

24.What does Hector think of the transportation? (同义句转换)

____________ ____________ Hector ____________ the transportation? 25.Mrs. Smith worried about her health. (同义句转换)

Mrs. Smith ____________ ____________ about her health.

26.Would you like another two cakes? (同义句转换)

Would you like ____________ ____________ cakes?

27.Tina spent 2 hours finishing her homework. (同义句转换)

It ____________ Tina 2 hours ____________ ____________ her homework.

28.It’s January 6th today. (对划线部分提问)

____________ ____________ ____________ today?

29.It’s Monday today. (对划线部分提问)

____________ ____________ is it today?

30.Today is Tuesday, March 8th. (对划线部分提问)

____________ today?

31.I played the piano better than my friend. (同义句转换)

My friend ____________ play the piano as ____________ as I.

32.I did well in the test. (同义句转换)

I ____________ ____________ ____________ in the test.

33.Peter is thin, and I am thin, too. (同义句转换)

I am ____________ ____________ ____________ Peter.

34.What do you mean by saying so? (同义句转换)

What’s the ____________ ____________ your words?

35.Ted has to finish his homework before he goes to bed every day .(改为否定句)

Ted __________ __________ to finish his homework before he goes to bed every day 36.They hope that they can have a good rest on weekends. (同义句转换)

They hope _____________ ____________ a good rest on weekends.

37.I wash clothes at home.(用watch TV改写为选择问句)

What _____________ you _____________ at home, wash clothes _____________ watch TV?

38.I’d like come to the party. (变为一般疑问句,并作肯定回答)

__________ __________ __________ __________ come to the party?

Yes, __________ like __________.

39.Andy isn’t as tall as Pedro . (同义句转换)

Andy is __________ __________ Pedro .

40.吃平衡膳食对我们很重要。(翻译)

It is ____________ for us ____________ ____________ a balanced diet.

41.吃蔬菜对你的健康有好处。(翻译)

____________ vegetables ____________ good ______________ your ____________.

42.我听说海南是个玩耍的好地方。(翻译)

I hear Hainan is a good place ____________ ____________ fun.

43.我刚刚迫不及待的打开了我的礼物(翻译)

I ___________ ___________ ___________ ___________ my gifts just now.

44.我计划今年在农村过寒假。(翻译)

I’m ____________ ____________ ____________ the winter vacation in the ____________ this year.

45.非常感谢你的邀请。(翻译)

Thank you very much for your ____________.

Thanks ____________ ____________for ____________me.

46.这本书比那本书便宜两块钱。(翻译)

This book is ____________ ____________ ____________ than that one.

47.-瘦点的那个男孩是谁?-是我的哥哥。(翻译)

-Who is ____________ ____________ boy?

-He’s my ____________ brother.

48.我认为特德的头发不比Tim的长。(翻译)

I __________ think Ted __________ longer hair than Tim .

49.非常感谢你给我打电话。(翻译)

Thanks a lot __________ __________ me.

50.这有一些关于如何保持健康的建议。(翻译)

Here is ______________ _______________ for how to keep healthy.

江苏省计算机一级考试知识点整理

江苏省计算机一级B考试知识点整理(理论宝典)(2010年3月1日) 第1章信息技术概述 考点1:什么是信息? 客观上:信息是指事物运动状态及状态变化的方式; 主观上:信息是认识主体所感知或所表述的事物运动及其变化方式的形式、内容和效用。 考点2:信息处理包含哪些行为和活动? 考点3:什么是信息技术?什么是信息处理系统? 信息技术(Information Technology,简称IT)指的是用来扩展人们信息器官功能、协助人们有效地进行信息处理的一类技术。 现代信息技术的主要特征: 广播、计算机、微电子、遥感遥测、自动控制、机器人等诸多领域。】 信息处理系统:用于辅助人们进行信息获取、传递、存储、加工处理、控制及显示的综合使用各种信息技术的系统。 例:雷达(感测,识别系统)电话(点对点,双向系统)广播(点到多点,单向系统) 考点4:集成电路 小规模、中规模、大规模、超大规模和极大规模集成电路(目前CPU)。 考点5:通信的概念及通信系统的组成。 至少需三个要素组成,即:信息的发送者(称为信源) 信息的传输通道(称为信道)。。 易错题:当前计算机中使用的集成电路绝大部分是模拟电路。F 考点6:传输介质 通信分有线通信和无线通信两类。 考点7:移动通信 第一代例:大哥大。 第二代GSM、CDMA 第三代【正在大规模普及:电信 CDMA2000,联通WCDMA,移动TD-SCDMA,WiMAX】 考点8:数字技术 当代电子信息技术的基础有两项:一项是微电子与光纤技术, 另一项是数字技术。 磁盘是利用磁介质表面区域的磁化状态来存储二进位信息, 光盘则是通过“刻”在盘片光滑表面上的微小凹坑来记录二进位信息。

六年级数学总复习易错题整理

六年级数学总复习易错题

一、填空题 1. A=2 x 3X a, B=3X a x 7,已知A与B的最大公约数是15,那么 a=(),A与B的最小公倍数是()。 2. 有一个放大镜,在这个放大镜下,一条线段其长度是原来的3倍,在这个放大镜下,正方形面积是原来的()倍,正方体的体积是原来的()倍。 3. 小红1/5小时行3/8千米,她每小时行()千米,行1千米用()小时。 4. 一台榨油机6小时榨油300千克。照这样计算,1小时榨油 ()千克,榨1千克油需()小时。 5. 把3米长的绳子平均分成4段,每段长()米,每段占3米的()。 6. 一个长方体的长、宽、高的比是3:2: 1,已知长方体的棱长 总和是144厘米,它的体积是()立方厘米。 7. 甲数是乙数的60%甲数比乙数少()%乙数比甲数多() 8. 甲班人数比乙班多1/4,则乙班人数比甲班少()。9.水结成冰后,体积比原来增加1/11,冰化成水后,体积减少()。 10. 一项工程投资20万元,比计划节约5万元。节约() %。 11. 男生人数的3/4与女生人数的4/5 一样多,男女生人数的比是 。 12. 一个长方形的周长36分米,宽是长的4/5,长方形的面积是 平方分米。 13. 在一个减法算式里,被减数、减数与差的和是180,减数与差的比是4: 5,被减数是(),差是()。 14. 一本书若定价每本10元,获得的纯利润是25%如果想使获得的纯利润是40%则每本书应定价()元。 15. 一个两位数,十位上的数字是m个位上的数字是n,用含有 字母的式子表示是()。 16. —个两位小数,它的近似值是4.0,这个数最大是(), 最小是()。 二、判断题 1. 大于90°的角都是钝角。() 2. 只要能被2除尽的数就是偶数。() 3.12/15不能化成有限小数。( 4. 能被3整除的数一定能被9整除。 5. 两个锐角之和一定是钝角。( 6. 在比例中,如果两个内项互为倒数, () 7. x+y=ky (k 一定)则x、y不成比例。( 8. 正方形、长方形、平行四边形、圆都是轴对称图形。( ) 9. 比例尺就是前项是1的比。() 10.1千克的金属比1千克的棉花重。( 11.1/100和1%TE是分母为100的分数,它们表示的意义相同。 () 12. 圆锥的体积比圆柱体积小2/3。( ) () ) 那么两个外项也互为倒数18. 比例尺大的,实际距离也大。(

人教版八年级英语上学期易错题汇总(答案)

八年级英语期末复习(一) 一. 单选 ( ). Green usually starts the day ______ breakfast. A. to B. for C. with D. from ( ) there __________ with your bike A. something wrong B. wrong something C. anything wrong D. wrong anything ( ) a balanced diet ________ healthy. A. to stay B. is staying C. will stay D. staying ( ) is the weather like -It’s warm. A. What B. Which C. How D. When ( )5. Mr. Brown usually comes here _______. A. drive ships B. take a ship C. by sea D. on the sea ( )6. Jim’s home is _______ from here.

A. 20 minutes B. 3kms far C. 20 minutes far D. 20 minutes’ walk ( ) 7. Tom and Tim usually come to school ____ their father’s car. A. by B. in C. at D. for ( )8. Her home is ten kilometers ________. A. away B. to C. from D. at ( )9. Jay ran ______ faster than the other boys in the sports meeing. A. so B. much C. very D. too ( )10. Stay ______ and then you will do your work better. A. quiet B. healthy C. at home D. health ( )11. There is going to _____ a relaxing vacation in three weeks. A. will have B. be C. have D. has ( ) boy is ______ fat because he eats _____ junk food. A. much too; much too B. much too; too much

第五单元“分数四则混合运算”易错题

第五单元《分数四则混合运算》易错题 1、计算 (87÷98—83÷98)+89×27 1—21—41—81—161—321—64 1 3、在一道减法算式中,被减数、减数、差相加的和是200,差与被减数的比是3:4,差是( )。 4、把一个正方体切成两个小长方体,原来正方体的表面积比两个长方体的表面积的和少( )。 5、一条鱼的重量等于它本身重量的54再加上5 4千克,这条鱼重( )千克。 6、一根钢管用去它的54后是6米。如果用去它的3 2,还有( )米。 7、如果A 是大于1的自然数,那么下列得数比大小: A ×52 ( )A ÷52 5 2÷A ( ) A ÷A 8、小明有红蓝两色球共95个,红球的21与篮球的3 1一样多,两种球相差( )个。 9、食堂原有大米500千克,用去51后,又增加现有大米的5 1。现有大米( )千克。 10、某商品原价100元,提价51后是( )元,提价后又降价5 1,现价是( )元。 11、如果三个连续偶数的和是A ,则这三个数是( )、( )和( )。 12、甲乙两堆煤,甲用去51后,乙用去4 1,余下的煤相等,甲乙两堆原来的数量比是( ) 13、如果丙数是甲乙两数和的2 1,则丙数和这三个数的( )相等。 14、一个商场,卖出手表24只,剩下的与总数的比是2:3,原有手表( )只。 15、三种杂志,故事书占总数的8 3,比科技书少40本,文艺书有160本,三种书共有( )本。

16、一根绳第一次剪去53,第二次又剪去51米,这时还剩下10 7米,这根绳原有( )米。 17、一堆圆片,红色的占125,又往里面放了8个红色的圆片,这时红色圆片占2 1。原有红色圆片( )个。(提示:总数在变化。建议用方程) 18、两根同样长的绳子,从第一根上剪下5 1接到第二根上,这时第二根绳长2.4米,两根绳原来各有( )米。 19、一堆水果420吨,卖掉7 4,卖掉( ),还剩( )。 20、加工一批零件240个,甲每天加工这批零件的81,乙每天加工这批零件的4 1,乙每天比甲多加工( )个零件。 21、一个加数是26,另一个加数与和的比是3:5,另一个加数是( )。 22、在一个减法算式中,被减数、减数、差的和是50,差比减数少4 3,减数是( )。 23、甲乙两人的分数比是5:4,如果甲给乙22.5分,则他们的份数比是5:7,乙原来得了( )。 24、A 、B 两地相距1200千米,小明3小时完成全程的4 1,照这样计算,行完全程至少需要( )小时。 25、30米增加它的31,再减少3 1米,结果是( )米。 26、水结成冰,体积比原来增加11 1,那么冰化成水后,体积减少( )。 27、甲班人数比乙班人数多3 1,甲班是( )份,乙班是( )份,乙班比甲班少( )份,乙班比甲班少( )。 28、一种商品先涨价101后又降价10 1,现在价格比原价( ),一种商品先降价101后又涨价10 1,现在价格比原价( )。 29、一件衣服200元,连续两次降价10 1后,现价是( )元。 30、一次考试有36人得优秀等第,占全班的5 4,还有( )人没有得到优秀等第。 31、甲乙两筐水果共440千克,取出甲筐的41和乙筐的5 1共100千克,,原来甲筐有水果( )千克。

(完整版)初中生物中考复习易错题归纳,推荐文档

卜细胞 少,萝 ;D 成熟区,作用根吸 和 初中生物易错题归纳 一、吸水与失水 1、植物在生命活动过程中必须不断地从外界环境吸收水和无机盐,根是吸收水和无机盐的主要器官。下图分别表示根尖的结构和植物细胞吸水、失水状态的示意图,请据 图回答问题: (1)根是陆生植物吸水的主要器官,根吸收水和无机盐的主要部位是甲图中的【 D】成熟区。 (2)细胞中控制内外物质进出的结构是细胞膜。 (3)根吸收水分时,水分主要进入细胞内的结构是液泡。 (4)用糖拌西红柿,不久会有许多汁液流出,其原因是外界溶液的浓度大于(大于或小于)西红柿细胞的细胞液浓度,造成细胞失水,其状态如乙图所示。 (5)根细胞吸水的根本原因是土壤溶液浓度小于根细胞液浓度。(选填“大于”或“小于”) (6)根据以上实验结论,我们可以解释农业生产中一次施肥过多,会造成水稻的“烧苗”现象,这是因为( A ) A.土壤溶液浓度过大,根细胞失水 B.土壤温度太高 C.水分太多,根无法呼吸 D.土壤缺乏足够的营养 2.学生兴趣小组为了研究外界溶液浓度对植物细胞吸水和失水的影响,设计了如下探究实验:取两个大小相同的萝卜,各从顶端向下挖一个大小一样的洞。在A萝卜洞内装 上浓盐水,在B萝卜洞内装上等量的清水,过一段时间后,观察萝卜洞内液面升降的变化(如图一)。 (1)该探究实验的变量是:外界溶液浓度。 (2)过了12小时候后观察发现:A萝卜洞里的水变多,萝卜变软;B萝卜洞里的水则变图一 变化。 卜变硬,那么,此时B萝图二发生了如图二中①(填序号)所示的 (3)得出结论:当外界溶液的浓度▲小于(大于或小于)萝卜细胞液浓度时,细胞吸水;反之则细胞失水。 相关知识:1.在细胞的结构中,保护细胞内部结构,维持细胞形态的是细胞壁;控制物质进出 的是细胞膜;与吸水和失水有关的是液泡,与光合作用有关的是叶绿体,与呼吸作用有关 的是线粒体。 2.在根尖的结构中,如图甲所示,A根冠,作用保护;B 分生区,作用细胞分裂;C 伸长区,作用根尖伸长失水 的主要器官。 二、泌尿系统 人体在新陈代谢中产生的废物主要通过泌尿系统排出体外,请根据泌尿系统结构示意图和下表中的相关信息回答: (1)人体泌尿系统的主要功能是形成和排出尿液,图②所示结构称之为输尿管,其主要作用是输送尿液。 (3)图③所示结构的功能是暂时贮存尿液。图中【①】肾脏是形成尿液的器官。 (2)根据表格中的数据可以判断 C 液为尿液,它可以暂时贮存在【③】膀胱中,一旦有尿意,应及时排出。 (3)若某人胰岛素分泌不足,则从【④】排出的液体中可检测出葡萄糖。可用胰岛素制剂来治疗。 (4)如果某人的尿液中出现了大量的蛋白质和血细胞,他有可能出现病变的是肾小管; (5)右图是尿液形成的示意图,图中①肾小囊中的液体是原尿;血浆中有大分子蛋白质,而原尿中没有,这是因为肾小球的滤过作用。 原尿中有葡萄糖而尿液没有,这是因为② 肾小管的重吸收。若化验出某人尿液中有葡萄糖,医生推断该病人的发病部位最可能是。三、无性生殖和有性生殖 1. 甲乙丙丁 (1)水蜜桃味美汁多,生产上常采用的繁殖方法是图【乙】芽接。 (2)图丙所示的生殖方式属于有性生殖,其种子中能萌发成幼苗的结构由受精卵发育而来。 (3)若要在短时间内生产出大批康乃馨等花卉幼苗,生产上常利用的技术是图【丁】组织培养。 2. 成分 A 液(克/100 毫升) B 液(克/100 毫升) C 液(克/100 毫升) 水90 98 96 蛋白质8.00 O.03 0.00 葡萄糖0.10 0.10 O.00 无机盐O.72 0.72 1.10 尿素0.03 0.03 1.80

外研版英语 八年级英语完形填空易错题

外研版英语八年级英语完形填空易错题 一、八年级英语完形填空训练 1.阅读下面短文,从每题所给的A、B、C、D四个选项中,选出一个能填入文中相应空白处的最佳答案。 Young Chinese would like to wear sweaters with messages. They expect to stop family members from nagging(唠叨) in the 1 traditional Chinese Spring Festival period, beginning on Feb, 16. One such sweater features(特载) messages such as "Please don't ask me the grades in final examinations", "Your child is really great" "No 2 salary, "I am on a diet, I can't eat too much" and so on. Sweaters with these messages become 3 because they provide answers to nagging questions from some youths' parents or relatives. During the Spring Festival, family members gather together and some of the elder ones always ask the 4 members of the family questions which they feel unhappy to answer. For example, "How many points did you get in final examinations?" or "When will you be 5 ?" Many internet users 6 the logo sweaters are lovely, and help them not need to answer questions if they wear the clothes during the holiday. 7 , some internet users are not that optimistic (乐观) about the sweaters. There are also many 8 methods to keep people from family nagging during the Spring Festival holidays. For example, some netizens (网民)suggest we can please our parents or other elder relatives by 9 their words and doing what they want us to do. Other internet users hoped they could share with their family members a song 10 What I Do is for Your Own Good, with the lyrics "My dear family members, I have my own life." 1. A. seven days B. seven day C. seven-day D. seven-days 2. A. talking about B. to talk about C. talk about D. talked about 3. A. safe B. polite C. important D. popular 4. A. taller B. happier C. younger D. stronger 5. A. married B. marrying C. to marry D. marry 6. A. know B. agree C. wonder D. decide 7. A. But B. So C. However D. Though 8. A. another B. others C. the other D. other 9. A. listening to B. hearing of C. saying to D. looking at 10. A. calling B. to call C. call D. called 【答案】(1)C;(2)A;(3)D;(4)C;(5)A;(6)B;(7)C;(8)D;(9)

计算机基础易错题

12212用网际快车下载时,一个文件可以分成5到10各部分同时下载,下次继续下载,这种下载方式的专有名词叫__多线程____下载。 12218IP地址分为人A、B、C、D、E五类。某IP地址二进制表示的最高4位为1110,则此IP 地址为(D)类地址。 12224WWW是__ World wide web____的缩写,中文译名为万维网。 12226如果我们要浏览WWW网站,需要在___地址栏___输入URL地址。 12232我国的顶级的域名是__CN____。 12233Internet上专门用来负责将域名转换成IP地址的主机称为__域名服务器____(填中文名称)。 12234使用(MIME)(填英文简写)协议使邮件正文可以包含有ASCll字符、汉字和图象等多种类型的数据。 12243用网际快车下载时,一个文件可以只下载一半,下次继续下载,这种下载方式的专有名词叫_断点续传_____。 12248计算机网络中,实际应用最广泛的是__TCP/IP____协议,由它组成了Internet的一整套协议。 数据表视图中,可以( ).A、删除一条记录B、删除一个字段C、修改字段的名称D、修改字段的类型A B C 在数据表视图中,不可以修改字段的类型。正确 Word中创建新文档时,指定的缺省模板设置为Normal模板正确 常见的数据模型有多种,目前使用较多的数据模型是_____。关系模型 微机中的PCI是().A、产品型号B、微处理型号C、总线标准D、微机系统名称C 下面关于表的说法中的是()。A、可以将其他数据库的表导入当前数据库中B、表的数据视图只用于显示数据C、数据表是Access数据库中的重要对象之一D、表的设计视图的主要工作是设计表的结构B 在Windows中通过下述哪些途径可以对系统日期或时间进行设置().A、右击任务栏最右端上的"显示时钟"图标,从弹出的菜单中选择"调整日期/时间" B、利用控制面板中的"日期/时间"C、双击任务栏最右端上的"显示时钟"图标D、单击任务栏最右端上的"显示时钟"图标,从弹出的菜单中选择,"调整日期/时间" A B C 用户要进行远程登录,必须在自己的计算机上运行一个远程登录客户程序。正确 多道批处理系统的特征是在宏观上并行运行,微观上串行运行. 正确 字母A的ASCII编码是_____。41H 65 _____是一组正式的规则、协定和数据结构,控制计算机以及其他网络设备进行信息交换,是各种硬件和软件必须遵循的共同守则。网络协议 用一组二维表表示实体及实体间的关系的数据模型是_____。关系模型 在工作表的行号和列标的交汇处有一个_____按钮单击这个按钮当前工作表全被选中全选计算机通信就是将一台计算机产生的数字信息通过( )传送给另一台计算机。 A、数字信道 B、传送信道 C、模拟信道 D、通信信道 D 编辑关系对话框中选中"实施参照完整性"和"级联更新相关字段","级联删除相关字段"复选框.下面说法正确的是( ). A、不需要设置"实施参照完整性",就可以设置"一对多"等关系的类型 B、主表中主关键字段"字段1"中如果没有"ABC"这个数据,在关系表中的"字段1"中也不允许输入"ABC" 这个数据 C、当在删除主表中主关键字段的内容时,同步更新关系表中相关的内容 D、当在更新主表中主关键字段的内容时,同步更新关系表中相关的内容

初中生物中考复习易错题归纳

初中生物中考复习易错题 归纳 Last revision on 21 December 2020

初中生物易错题归纳 一、吸水与失水 1、植物在生命活动过程中必须不断地从外界环境吸收水和无机盐,根是吸收水和无机盐的主 要器官。下图分别表示根尖的结构和植物细胞吸水、失水状态的示意图,请据图回答问题: (1)根是陆生植物吸水的主要器官,根吸收水和无机盐的主要部位是甲图中的【 D】成熟区。 (2)细胞中控制内外物质进出的结构是细胞膜。 (3)根吸收水分时,水分主要进入细胞内的结构是液泡。 (4)用糖拌西红柿,不久会有许多汁液流出,其原因是外界溶液的浓度大于(大于或小于)西红柿细胞的细胞液浓度,造成细胞失水,其状态如乙图所示。 (5)根细胞吸水的根本原因是土壤溶液浓度小于根细胞液浓度。(选填“大于”或“小于”) (6)根据以上实验结论,我们可以解释农业生产中一次施肥过多,会造成水稻的“烧苗”现象,这是因为( A ) A.土壤溶液浓度过大,根细胞失水 B.土壤温度太高 C.水分太多,根无法呼吸 D.土壤 缺乏足够的营养 2.学生兴趣小组为了研究外界溶液浓度对植物细胞吸水和失水的影响,设计了如下探究实 验:取两个大小相同的萝卜,各从顶端向下挖一个大小一样的洞。在A萝卜洞内装上浓盐水,在B萝卜洞内装上等量的清水,过一段时间后,观察萝卜洞内液面升降的变化 (如图一)。 (1)该探究实验的变量是:外界溶液浓度。

(2)过了12小时候后观察发现:A 萝卜洞里的水变多,萝卜变软;B 萝卜洞里的水则变少,萝卜变硬,那么,此时B 萝卜细胞发生了如图二中 ① (填序号)所示的变化。 (3)得出结论:当外界溶液的浓度 ▲小于 (大于或小于)萝卜细胞液浓度时,细胞吸水;反之则细胞失水。 相关知识:1.在细胞的结构中,保护细胞内部结构,维持细胞形态的是 细胞壁 ;控制 物质进出的是 细胞膜 ; 与吸水和失水有关的是 液泡 ,与光合作用有关的是 叶绿体 ,与呼吸作用有关的 是 线粒体 。 2.在根尖的结构中,如图甲所示,A 根冠 ,作用 保护 ;B 分生区 ,作用 细胞分裂 ;C 伸长区 ,作用 根尖伸长 ;D 成熟区 ,作用 根吸水和失水 的主要器官 。 二、泌尿系统 人体在新陈代谢中产生的废物主要通过泌尿系统排出体外,请根据泌 尿系统结构示意图和下表中的相关信息回答: (1 )人 体泌尿系统的主要功能是 形成 和排出尿液,图②所示结构称之为 输尿管 ,其主要作用是 输送尿 液 。 (3)图③所示结构的功能是 暂时贮存 尿液。图中【① 】 肾脏 是形成尿 液的器官。 (2)根据表格中的数据可以判断 C 液为尿液,它可以暂时贮存在【③ 】 膀胱 中,一旦有尿意,应及时排出。 (3)若某人 胰岛素 分泌不足,则从【④】排出的液体中可检测出葡萄糖。可 用 胰岛素 制剂来治疗。 (4)如果某人的尿液中出现了大量的蛋白质和血细胞,他有可能出现病变的是 肾小 管 ; 成 分 A 液(克/100毫升) B 液(克/100毫升) C 液(克/100毫升) 水 90 98 96 蛋白质 葡萄糖 无机盐 尿 素

(word完整版)新外研版八年级上语法填空

语法填空(本题有10题,每小题1份,共计10分) 阅读下面的短文,在空白处填入一个适当的词,或填入括号中所给单词的正确形式,每空一词。 I’m Maggie. I am __1__ (冠词)11-year-old girl. I like ___2___ (travel) very much. And my favourite city is Hangzhou. __3___ (介词)October 1st last year, I went to Hangzhou ____4___ (visit) my friends. I ___5___ (feel) very happy when I saw them. The weather was great. The sun ____6_____ (shine) all the time but it was not hot. After lunch, we went out and bought ___7___ (lot) of nice things in the stores. We went to one of___8_____ (beautiful) places--- West Lake and boated in the lake. How relaxing and ____9___ (excite)! We really enjoyed ___10____ (we). 四、语法填空(共10 小题,每小题1分,满分10分) 阅读下面的短文,用括号内所给词的适当形式填空,必要时可加助动词。请将答案填写在文后相应的横线上。 Alice likes cats 1 (much) than any other animal. 2 (连词)she is still young, she has experience(经验) of 3 (look)after cats. When she was a child, she 4 (live) with her grandparents. At that time, her grandparents already had an old cat, about 10 years old, but she was only 4 years old. It was a good friend for her in her childhood(童年时代). It was very 5 (friend) to her and never hurt (伤害)her. One day, however, it left home and 6 (not come) again. It must be dead. She was so sad that she was sorry for it for a long time. Now Alice has four 7 (cat). She takes good care of them and makes them 8 (live) comfortably. But she is afraid to take her cats out of the house. She says it is too 9 (danger) for animals 10 (go ) outside. 语法填空(本题有10题,每小题1份,共计10分) 在空白处填入一个适当的词,或填入括号中所给单词的正确形式,每空一词。 It is not good for children to have to work hard. Children should study in the schools. They should not to go to do heavy work. .It’s very bad ___ (介词) their bodies and their health (do)so much hard work when they are too young. Some parents let their children __(make)money for them instead of __ (learn)in the schools. The children will ___(hate)their parents when they grow up. And it’s really very bad for their life in ___(冠词)future. Children should study and play in the school with their ____(classmate)and their good friends. Some children stop __ (learn)in the schools and work in some hotels, shops, factories and stations. They are too young to do heavy work.. _ (连词)they can’t bear(忍受),they may run away. They may run from one place to another. __ _ (they)feelings(思想感情)become different from others. And this will be bad for their future.

全国计算机等级考试二级MS office 难点易错题总结笔记

第9套已练习电子表格excel 根据日期,由函数填充季度 A3是时间日期列 =INT(1+(MONTH(A3)-1)/3)&"季度" 11套 根据身份证号后第2位奇偶性判断男女 =IF(MOD(MID([@身份证号],17,1),2)=1,"男","女") 员工年龄计算,每月按30天,一年按360天计算 =int(days360([@出生日期],date(2015,9,30))/360) =CHOOSE(MOD(ROW(),3)+1,OFFSET('12月工资表'!A$3,ROW()/3,),"",'12月工资表'!A$3) 新增题库7 删除excel中一列数据A列中的拼音并在后面加“市” A列后插入新的列,B列,然后输入公式 =left(A2,lenb()-len())&"市" 复制B列,选择性粘贴,数值 新增7套 将表格中空单元格中填入0 查找替换,查找中不输入任何内容,替换中输入0 将单元格中小于的数值突出显示,并填充干旱文本 先条件格式,突出显示,再单元格,设置单元格格式,自定义,通用格式, 输入[<]"干旱" 新增8

插入的合并域成绩保留两位小数 右键--切换域代码--添加英文输入发下的 \#0.00 注意是反斜杠和小数位是用0.0000的方式表示 新建绘图画布 插入---形状--新建绘图画布 新增8excel 设置G列单元格格式,如果折扣大于0,显示-,小于0,显示0位小数的百分比格式 在设置单元格-通用格式-输入[=0]"-":0%,如果是1位就是#0.0%,两位#0.00% 绝对引用快捷方式 F4 clean函数删除文本中的隐性字符,trim函数是删除文本前后的空格, 不删除文本字符间的空格,只删除前后 trim(clean())组合得到纯文本 第2套 7题 根据各科班级平均分插入簇状柱形图 A2:J6 只选中班级和各科平均分区域,然后插入簇状柱形图‘ 第6套 对字体为紫色的重复项订单编号排在销售订单的顶端区域 数据 --排序和筛选---自定义--关键字--订单编号--字体颜色-紫色-在顶端 数据透视表要显示某组数据的季度 数据透视表工具--选项--分组--将字段分组--季度--开始于/截止于 第7套 中的成绩最高分和最低分比较难 =MAX((成绩单!$A$2:$A$950=按班级汇总!$A2)*(成绩单!$B$2:$B$950=按班级汇总!$B2)*成绩单!$D$2:$D$950) =MIN(IF((成绩单!$A$2:$A$950=按班级汇总!$A2)*(成绩单!$B$2:$B$950=按班级汇总!$B2),成绩单!$D$2:$D$950)) 将工作表中的单元格中的数值转置到另一工作表中或将某一部分数据进行转置, 先将要转置的数据进行复制,然后将光标定位于要转置的区域的开始位置,粘贴--选择性粘

小学数学总复习易错题集(精心整理版)

小学数学总复习易错题集 一、填空 1、一个三角形的底角都是45度,它的顶角是()度,这个三角形叫做()三角形。(注意答案的准确完整) 2、有一根20厘米长的铁丝,用它围成一个对边都是4厘米的四边形,这个四边形可能是 ()。(注意答案的准确完整) 3、一项工程,甲乙两队合作20天完成,已知甲乙两队的工作效率之比为4:5,甲队单独完成这项工程需要()天。(注意工作时间和工作效率的转化) 4、一座钟的时针长3厘米,它的尖端在一昼夜里走过的路程是()厘米。(注意两个关键词) 5、在一块长10分米,宽6分米的长方形铁板上,最多能截取()个直径是2分米的圆形铁板。(可把圆看作正方形) 6、3/4吨可以看作3吨的(/ ),也可以看作9吨的(/ )。(可看成求一个数是另一个数的几分之几) 7、两个正方体的棱长比为1∶3,这两个正方体的表面积比是()∶(),体积比是()∶()。(长度比不变,面积成平方比,体积变立方比) 8、长方体货仓1个,长50米,宽30米,高5米,这个长方体货仓最多可容纳8立方米的正方体货箱()个。(注意高度上不能放整个数,不能用大体积除以小体积,要分层计算) 9、棱长1厘米的小正方体至少需要()个拼成一个较大的正方体,需要()个可以拼成一个棱长1分米的大正方体。如果把这些小正方体依次排成一排,可以排成 ()米。(较大即棱长多1,另注意单位的变化) 10、一个数的20%是100,这个数的3/5是()。(先求单位1,再已知单位1求对应量) 11、六(1)班今天出勤48人,有2人因病请假,这天的出勤率是()。(注意出勤率=出勤人数除以应出勤总人数乘以100%,得数一定要写成百分数) 12、A除B的商是2,则A∶B=()∶()。(看到除和除以一定要小心) 13、甲数的5/8等于乙数的5/12,甲数∶乙数=()∶()。(甲乙之比不等于两分数之比,另最后一定要写成最简整数比) 14、把4∶15的前项加上2.4,为了要使所得的比值不变,比的后项应加上()。(根据比的基本性质,前项增加它的几倍,后项也要增加它的几倍,而不能加或减相同的数) 15、6/5吨:350千克,化简后的比是(),比值是()。(注意化单位) 16、把甲班人数的1/8调入乙班后两班人数相等,原来甲、乙两班人数比是()。(调入不是相差甲班的1/8,而是甲班的两个1/8) 17、甲走的路程是乙的4/5,乙用的时间是甲的4/5,甲、乙速度比是()。(速度=路程除以时间,一定要注意前后两条件顺序不一,最后写成最简整数比)18、一个数由6个百亿、500个万,8个千,40个十组成,这个数写作(),改写成万为单位的数写作(),省略亿后面的尾数是()。(注意改写和省略尾数的区别) 19、50以内只含有质因数2的数有()。(即不同个数的2相乘) 20、4米的绳,把它平均分成5段,每段是这根绳子的(),每段长()米,等于1米的()。(不带单位是分率,是分数的一般意义,平均分成若干份是分母,选其中的几份是分子,和整体的大小无关;带上单位是量,是分数的除法意义,用整体除以份数) 21、3/8的单位是(),要添上()个这样的单位是87.5%。 22、在括号里填上一个分母是一位数的分数,3/4<()<4/5。(可分子分母同时乘以2,找中间数) 23、16和24的最小公倍数是(),最大公约数是(),最大公约数是最小公倍数的()。 24、用字母表示: (1)一项工程,甲队独做a天完成,乙队独做b天完成。两队合作,()天完成。 (2)a和7所得和的3倍除以5的商。() (3)n除m的商。()(看到除和除以一定要小心) 25、一根长2米,横截面直径是6厘米的木棍,截成4段后表面积增加了(),它原来的体积是()。(想一想截成4段截了几次增加了几个横截面,另注意单位的变化) 26、x=5b-2b b和x成()比例(把算式化简改写,x和b凑一起是乘还是除,是反比例还是正比例) 27、甲绳是乙绳的4/5,乙绳比甲绳长()(注意两个量的前后顺序) 28、一个整数以万为单位的近似数是5万,这个数最大是(),最小是()。(最大是四舍去一个最大的尾数得到的,最小是五入得到的即进一才是5万尾数必满5且最小)29、一个直角三角形中,三条边的长分别是6厘米、8厘米、10厘米,这个三角形的面积是 ()平方厘米。(找到两条直角边,分别是底和高) 30、一个圆柱形的玻璃杯,测得内直径是10厘米,内装药水深度有16厘米,正好占杯内容量的80%。如果装满药水,应是()毫升。(注意实际高度,可先求药水体积再求容积或先求杯子实际高度再求容积) 31、一本书若定价每本10元,获得的纯利润是25%;如果想使获得的纯利润是40%,则每本书应定价()元。(注意单位1是成本,纯利=定价-成本,定价=成本×(1+利润率)) 32、4/11的分子加上12,要使分数的大小不变,分母应加上()。

新人教版八年级英语上册单元易错题整理

重庆育才中学 八年级上Units1-6易错基础题 班级_________ 姓名_________ 一、用所给单词的适当形式填空。 1.I’m spending time ____________(visit) my friends in China. 2.____________(cook) is fun, so I like ____________(cook). 3.Don’t make so much noise, my grandpa ____________(sleep). 4.Her father ____________ (leave) for Beijing in three days. 5.It’s December now, the New Year ____________(come). 6.Lisa decides ____________ (pay) 100 for that beautiful coat. 7.Annie finished ____________ (do) her homework just now. 8.Do you need ____________ (watch) your son when he is playing? 9.We felt ____________ (excite) because of the _____________ (excite) movie. 10.The sad end of the movie made us ____________ (cry). 11.It takes about 30 minutes ____________ (get) from my home to school. 12.Is it difficult ____________ (do) the math exercises? https://www.doczj.com/doc/8c6885811.html,st year, Eric always ____________ (ride) to school. 14.Do you know if they are ____________ (plan) for their vacation? 15.David, why not ____________ (go) out to play football? 16.Oh, I am so sorry ____________ (tell) that you got an F in the test. 17.Tomorrow is April ____________ (twelve). 18.Are there any ____________ (man) clothes selling in the store? 19.With ____________ (who) will you go? 20.I am ____________ (bad) at math than last year. 21.You are too serious, can you be ____________(friendly). 22.Mike is ____________ (funny), and Jack is ____________ (funny), too. 23.This picture is far ____________ (beautiful) than that one. 24.Maria is ____________ (later) of the two girls. 25.Her mother is ____________ (busy) of her parents. 26.It’s winter now; the weather is getting ____________ (cold and cold). 27.The ____________ (few) exercises you do, the ____________ (difficult) you may feel. 28.She got ____________ (little) water than I ____________ (do). 29.My dictionary is ____________ (new) than ____________ (he). 30.Alicia, who do you think is ____________ (lazy) of the two ____________ (woman doctor)? 31.My father ____________(exercise) every day last year. 32.I went to the park ____________ (two) a week. 33.Sometimes we went ____________ (swim) in the river when we were young. 34.My favorite sport is ____________ (play) table tennis. 35.____________ (drink) a lot of water is good for you. 36.He’d like _____________ (skate) today because he likes ___________ (skate). 37.Tom is often ill, I think he is kind of ____________ (health).

相关主题
文本预览
相关文档 最新文档