沪教版初中英语七年级Unit 1基础知识练习及答案
Unit 1 (Reading)
基础知识卷
一、词语填空(共10小题)
用方框中的单词或短语完成下列句子。
probably misses strict telling jokes make fun of
person laughing support encourage take care of
1. 课堂上，老师通常对他们的学生要求严格。
Teachers are usually ________ with their students in class.
2. 我认为我妈妈是世界上最好的人。
I think my mum is the best ________ in the world.
3. 我可能呆在家里看足球比赛。
I’ll ________ stay at home and watch the football match.
4. 格林太太经常帮我照顾孩子。
Mrs Green often helps me ________ my children.
5. 取笑他人是不对的。
It’s not right to ________ others.
6. 别害怕，我们永远支持你。
Don’t be afraid. We’ll ________ you forever.
7. 爱丽丝的哥哥三年前离开了家，爱丽丝现在非常想念他。
Alice’s brother left home 3 years ago and now Alice ________ him very much.
8. 孩子们在操场上又跳又笑。
The children are jumping and ________ on the playground.
9. 我们应当鼓励青年人多读书。
We should ________ the young to read more books.
10. 艾伦擅长讲笑话，我们都喜欢他。
Alan is good at ________ and we all like him.
二、单项填空(共10小题)
( ) 1. I like sports. I play ______ table tennis every day.
A. a
B. an
C. the
D. /
( ) 2. Look at the girl in the red skirt. ______ is my new classmate.
A. It
B. She
C.He
D. This
( ) 3. John is a ______. He often cooks delicious food for us.
A. student
B. teacher
C. doctor
D. cook
( ) 4. The cake left an unusual ______ in my mouth. I’d like another one.
A. sound
B. smell
C. taste
D. look
( ) 5. —Mum, my little sister is crying all the time.
—Mary, be ______! She is still young. You should take good care of her.
A. patient
B. weak
C. cheerful
D. smart
( ) 6. —What does your new teacher look like?
—She is a pretty lady ______ long hair.
A. at
B. for
C. with
D. of
( ) 7. I’m not good at Maths. My friend often ______ me and tells me how to learn it well.
A. misses
B. encourages
C. forgets
D. interviews
( ) 8. We will never ______ our studies. Never!
A. be good at
B. look up
C. be strict about
D. give up
( ) 9. The music in the CD made the students ______ excited.
A. feel
B. feels
C. felt
D. to feel
( ) 10. —What does your mother do?
—______.
A. She does the housework
B. She is a nurse
C. She is very thin
D. She looks very young
三、句子改写(共5小题)
1. My grandma died two years ago. (就划线线部分提问)
________ ________ your grandma die?
2. Mr Li is tall and thin. (就划线部分提问)
What does Mr Li ________ ________?
3. Alice is good at Maths. (同义句改写)
Alice ________ ________ in Maths.
4. Amy is smart. She is hard-working, too. (同义句改写)
Amy is smart. She is hard-working ________ ________.
5. He often tells us jokes. (改为一般疑问句)
________ he often tell ________ jokes?
四、完形填空(共5小题)
My grandma was a short woman with grey 1 . She was always cheerful. She was a very good cook. Her 2 were probably the best in the world! I will never 3 the taste, and the smell as well.
Grandma took care of my family. She was 4 kind and patient. She died two years ago and I miss 5 very much.
( ) 1. A. hands B. head C. hair D. face
( ) 2. A. dishes B. jokes
C. articles
D. dreams
( ) 3. A. support B. catch C. forget D. follow
( ) 4. A. really B. probably C. seldom D. never
( ) 5. A. him B. them C. her D. you
五、短文填空(共15小题)
A）阅读短文, 然后从方框中选出适当的单词填入文中空白处。
smart study make glasses
together others remain best at
Alice is my (1)_________ friend. She is a tall girl with (2)_________. She often tells me jokes to (3)_________ me laugh, but she never makes fun of (4)_________.
Alice is a (5)_________ girl. She is good (6)_________ Maths. We often (7)_________ and play table tennis (8)_________. I hope we will always (9)_________ friends.
B) 阅读短文, 然后用括号中所给单词的适当形式填空。
Mr Li is (10)_________ (I) Maths teacher. He is tall and thin. His (11)_________ (class) are always full of fun. He uses lots of games in his (12)_________ (teach).
Mr Li is strict about our (13)_________ (study), but he always encourages us and (14)_________ (give) us support. He often says, “Never give up and you’ll be (15)_________ (success).”
六、阅读理解(共5小题)
Hello, I’m Kevin. It’s my turn to make a duty report （值日报告）.
First, good news about my mother. She’s got a new job. She works as a teacher at a primary school. She likes it a lot. The only problem is that she gets up very early. She has to be at school at 7:30 every morning.
My father wants to learn Chinese. He has lessons every afternoon. My brother Sam and I go swimming. We go to the swimming pool five times a week. Sam finds it boring, but I really enjoy it. I think it’s fun. I also want to learn to play a musical instrument（乐器）. I can have guitar lessons on Mon days or piano lessons on Fridays, but I can’t decide （决定）. What do you think? Can you tell me? That’s all. Thank you.
( ) 1. There are ______ people in Kevin’s family.
A. three
B. four
C. five
D. six
( ) 2. Kevin’s father ______.
A. is a teacher
B. goes to the swimming pool five times a week
C. has Chinese lessons every day
D. has piano lessons on Friday
( ) 3. What does Kevin’s brother think of swimming?
A. Fun.
B. Exciting.
C. Boring.
D. Amazing.
( ) 4. Kevin is probably going to learn ______.
A. Chinese
B. to swim
C. to play the guitar
D. to make a duty report
( ) 5. What’s the duty report mainly (主要) about?
A. Study.
B. Family.
C. Hobby.
D. Sport.
答案
Unit 1 (Reading)
一、1. strict 2. person 3. probably 4. take care of 5. make fun of 6. support 7. misses
8. laughing 9. encourage 10. telling jokes
二、1—5 DBDCA 6—10 CBDAB
三、1. When did 2. look like 3. does well 4. as well 5. Does；you
四、1—5 CACAC
五、1. best 2. glasses 3. make 4. others 5. smart 6. at 7. study 8. together 9. remain
10. my 11. classes 12. teaching 13. studies 14. gives 15. successful
六、1—5 BCCCB
Unit 1 (Listening ~ Culture corner)
基础知识卷
一、词语填空(共10小题)
用方框中的单词或短语完成下列句子。
paragraph wear all day and all night go to work
dream hard work special Most member gift
1. 我儿子的梦想是成为一名工程师。
My son’s ______________ is to be an engineer.
2. 多数人喜欢吃苹果。
______________ people like eating apples.
3. 请看第十五页的第二段。
Look at the second ______________ on Page 15.
4. 他给了我一本书作为生日礼物。
He gave me a book as a birthday ______________.
5. 他们不得不整日整夜地工作。
They have to work ______________.
6. 汤姆是我们足球俱乐部的新成员。
Tom is a new ______________ of our football club.
7. 辛苦工作了四个小时后，他觉得非常饿。
He felt very hungry afte r four hours’ ______________.
8. 今天对我来说是个特殊的日子。
Today is a ______________ day for me.
9. 我通常乘地铁去上班。
I usually ______________ by underground.
10. 你们上班必须穿西装吗？
Do you have to ______________ a suit at work?
二、单项填空(共10小题)
( ) 1. Amy is my best friend. She often helps me______ my English.
A. in
B. on
C. with
D. to
( ) 2. Look at the nice ______! I wish to wear it to the party.
A. flowers
B. glasses
C. card
D. dress
( ) 3. My father is a good doctor. His job is to help ______ people.
A. patient
B. sick
C. kind
D. hungry
( ) 4. Every morning, Little John ______“Bye-bye” to his mother and goes to school. A. says B. tells C. speaks D. talks
( ) 5. Mother’s Day is on the ______ Sunday in May in the United States.
A. first
B. second
C. third
D. fourth
( ) 6. Alice likes doing housework. She ______ her room every afternoon.
A. cleans
B. cleaned
C. is cleaning
D. clean
( ) 7. Mum, what are you cooking? It ______ so sweet.
A. tastes
B. feels
C. sounds
D. smells
( ) 8. —When is ______ Day?
—It’s on June 1st, Dave.
A. Child
B. Children
C. Child’s
D. Children’s
( ) 9. —What would you like ______ for your Mum on Mother’s Day?
—A dress.
A. buy
B. buying
C. to buy
D. buys
( ) 10. —Which computer is yours?
—______
A. It is a useful one.
B. The new one.
C. Tom’s.
D. I like my computer.
三、语法填空(共10小题)
用冠词a(n), the 或零冠词完成下列各句。
1. Mary was born in 1998 and she began to play ______ guitar at the age of seven.
2. There is ______ American boy in our class and ______ boy can speak good Chinese.
3. —Excuse me, is there ______ bank near here?
—Yes, it’s over there, next to ______ hotel.
4. —Will you get there by ______ bike?
—No, I will take ______ bus.
5. The young man in a blue coat is my PE teacher. He often plays ______ basketball with us.
6. —Is ______ football under the desk yours, Tom?
—No, I only have ______ basketball. Maybe it’s Mike’s.
7. —Mary, who’s ______ woman over there?
—She’s my aunt, ______ English teacher.
8. —Who is ______ little boy in the photo?
—Oh, it’s me! I was six that year.
9. This is ______ useful book. ______ book is my brother’s.
10. —Do you often play ______ tennis after school?
—No, I don’t like sports. I often play ______ drums.
四、句子改写(共5小题)
1. Mum made me a nice dress last week. (同义句改写)
Mum made a nice dress ________ ________ last week.
2. The bike under the tree is mine. (就划线部分提问)
________ ________ is yours?
3. Ben is tall and strong. (就划线部分提问)
________ does Ben ________ like?
4. The boy has to stay at home today. (改为否定句)
The boy ________ ________ to stay at home today.
5. We like playing volleyball. (改为一般疑问句)
________ ________ like playing volleyball?
五、完成对话(共5小题)
根据对话内容,从对话后面的选项中选出能填入空白处的最佳选项。(有一项为多余选项)。A: Who is your best friend, Holly?
B: Victor.
A: (1)______
B: Because he likes to do the same things as I do. He’s also popular. (2)______
A: Are you good at basketball, too?
B: Yes, I am. We play basketball every afternoon.
A: (3)______
B: For about forty minutes. Would you like to join us this afternoon?
A: (4)______ What time shall we meet?
B: At five o’clock. (5)______
A: That’s great! See you then!
B: See you!
A. And let’s meet in the playground.
B. No, thanks.
C. How long do you play?
D. And he’s good at basketball.
E. Where is he from?
F. Why is he a good friend?
G. I’d love to.
六、短文填空(共10小题)
A）阅读短文, 然后从方框中选出适当的单词填入文中空白处。
for parents and begins a
study the English get work
I am Bill. I am (1)________. I come to China with my (2)________. They work in a university （大学）and I (3)________ in a middle school. We live in a house near (4)________ university but it is far from my school. I get up at six in the morning (5)________ then have some bread and milk (6)________ breakfast. I go to school by bike. The first lesson (7)________ at eight, so I must (8)________ there at seven forty-five. In China, a lot of people go to (9)________ by bike and you can see bikes here and there. China is (10)________ “Country of Bike”.
七、回答问题(共5小题)
In England there is an interesting family. The family has three children. Their ages are different,
but they have the same birthday. Isn’t it great?
Every year, on October 17, the family has a big birthday party in a restaurant. Many friends and relatives come to the party. The children get a lot of presents.
The parents also give each of them a present. This year they give John, 15, a computer. He can use it to find out useful information and help him study better. They give Mary, 14, a bicycle. She’ll go to school on it by herself. They give Tom, 10, a model car because he is a car fan （迷）.
The three children think it surprising that they have the same birthday. Do you think so?
1. How many daughters are there in the family?
___________________________________________
2. When is the children’s birthday?
___________________________________________
3. Do the children each get only one present every year?
___________________________________________
4. What does John get from his parents this year?
___________________________________________
5. Who is the youngest child?
___________________________________________
答案
Unit 1 (Listening ~ Culture corner)
一、1. dream 2. Most 3. paragraph 4. gift 5. all day and all night 6. member 7. hard work 8. special 9. go to work 10. wear
二、1—5 CDBAB 6—10 ADDCB
三、1. the 2. an; the 3. a; the 4. /; a 5. / 6. the; a 7. the; an 8. the 9. a; The 10. /; the
四、1. for me 2. Which bike 3. What; look 4. doesn’t have 5. Do you
五、1—5 FDCGA
六、1. English 2. parents 3. study 4. the 5. and 6. for 7. begins 8. get 9. work 10. a
七、1. Only one. / One. 2. On October 17. 3. No, they don’t. 4. A computer. 5. Tom.
(完整版)沪教牛津版初中英语七年级上册全套教学案
7A UNIT 1 Making friends Ⅰ重点单词： world n. 世界country n. 国家Japan n.日本Germany n. 德国German adj.德国的n.德国人 grammar n.语法 blog n. 博客sound n. 声音everyone n.人人（谓语动词要用单数）hobby n.爱好(复数hobbies）age n. 年龄 elder adj. 年长的dream n. 梦想complete v. 完成us pron.我们 yourself pron.你自己friendly adj. 友爱的engineer n. 工程师 flat n.公寓mountain n. 山Ⅱ重点短语： 1.colse to 接近 = near 反义词：far （away）from 远离 2.go to school 去上学 3.be good at 擅长 =do well in 反义词：be bad /poor at=do badly in不擅长 4.make friends with 与……交朋友 make friends 交朋友 5.all over 遍及 6.I’d like to=I would like to 愿意 Ⅲ重点句型： 1.what does···mean？ 2.welcome to 3.I like···because··· 4.My dream is to be··. 5.How old is/are ····？ 6.What does ····do？ Ⅴ详细讲解： 1.Read a G erman girl’s blog.(Page1） （1）German ： ① adj.德国的（德国人的，德语的）This is a German car. ② n.德国人，是可数名词。复数形式要在后面加“s”。意为“德语”时，是不可数名词。 Eg.Germans speak German. 我还知道：中日不变，英法变，其余后面加S （关于单复数） 中国China，中国人/中文Chinese 日本Japan，日本人/日语Japanese， 法国France，法国人/法语French 英国England/Britain/U.K.英国人/英语English 法国人还可用Frenchman(pl.Frenchmen) 英国人还可用Englishman(pl.Englishmen) （2）girl’s 是名词“girl”的所有格形式，意为“女孩的···” 所有格：在名词后加上“’s”构成所有格，表示一种所属关系，表示“···的”它的构成有以下方式：
Unit1 基 础 过 关练习题
Unit1 基础过关 第一课时Section A(1a～2d) Ⅰ.根据句意及汉语提示填写单词。 1. Lily had a short ________(谈话)with her teacher. 2. Tom is just a child, so you should be ________(耐心的)with him. 3. Can you make a ________(句子)with “if”？ 4. Please read ________(大声地)so that I can hear you. 5. The two words look the same, but their ________(读音)are different. Ⅱ.用括号内所给单词的适当形式填空。 6. We study by ________(watch) English－language videos. 7. My brother wants to improve his ________(speak)skills. 8. It will ________(probable)rain. Please take your raincoat with you. 9. Bill，please take these English ________(textbook)to your teacher. 10. Can you finish ________(read)these books before 10 o'clock? Ⅲ.根据汉语意思完成句子，每空一词。 11. 他说话声音很低，太难听清楚他说什么了。 He speaks in a low voice. It's ________ ________ ________ hear him clearly. 12. 那位专家什么时候给我们作报告啊？ When will the expert ________ ________ ________ ________？ 13. 如果你逐字读，你需要三天才能读完那本书。 If you read ______ _______ ________，you need 3 days to finish reading the book. 14. 现在来做单词卡片怎么样？What about _____ ____ ______ now? 15. 房间越干净，你就会越感到舒服。 ________ ________ the room is，________ ________ ________ you'll feel. 第二课时Section A(3a～3b) Ⅰ.根据句意及汉语提示填写单词。 1. Do you know the most popular ________(表达)in 2015? 2. Could you tell me your ________(秘诀)for a long happy life? 3. Bob improves his English by doing ________(语法)exercises. 4. It is well known that Columbus ________(发现)America in 1492. 5. Mike doesn't know the ________(意思)of the new word. Can you tell him? Ⅱ.用方框中所给单词的适当形式填空。 6. The girl ________ Annie is my pen pal. 7. My teacher spoke so ________ that I couldn't follow her. 8. We really need your help and ________． 9. We sent him some flowers as an ________ of thanks. 10. He jumped about in excitement at the ________． Ⅲ.根据汉语意思完成句子，每空一词。 11. 对我来说这是小菜一碟。It's _____ _____ ________ ________ for me. 12. 我第一次来到上海就爱上了这个城市。 I ________ ________ ________ ________ Shanghai when I first come here. 13. 不要害怕寻求帮助。Do not ________ ________ ________ ask for help. 14. 当我给汤姆打电话的时候，他正在用字典查新单词。 When I called Tom，he was ________ ________ new words in the dictionary. 15. 这家商店也卖各种各样的衣服。The shop sells all kinds of clothes ____ ______． 第三课时Section A(4a~4c) Ⅰ.用方框中所给单词的适当形式填空。 1. Learning grammar helps me understand the sentence ________ better. 2. Alice is my pen ________．She comes from England. 3. She remembered the long article by ________ it over and over again. 4. I'm good at physics and ________．I often get good scores in them. 5. He studied his map，trying to ________ the way to Ann's street. Ⅲ.根据汉语提示完成句子，每空一词。 11. It's a good habit to ________ ________(记笔记)in class. 12. When did you begin to ________ ________ ________(记日记)，Mike? 13. Listen carefully to every word you hear，then ________ ________ ________ ________(大声把它们重复出来)． 14. Yang Juan always ______ ________ ________(和……谈话)her friends in English. 15. Wang Lin often listens to the tapes to ____ ________ ________(改善他的发音)． 第四课时Section B(1a～1e) Ⅰ.根据句意及汉语提示填写单词。 1. My foreign friend thinks China's population ________(增加)quickly in the past. 2. The train is travelling at a ________(速度)of sixty miles an hour. 3. Mary will be my ________(搭档)in the next dance. 4. Jessica is from England. So she doesn't ________(理解)Chinese. 5. Why do you make so many ________(错误)?
(完整版)等差数列基础题训练.docx
1. 等差数列 a n 中,已知 a 1 10, d 2, 则 a 6 —— . 2. 等差数列 a n 中,已知 a 3 1, a 9 9, 则a 5 a 6 a 7 _______. 3. 等差数列 a n 中, a 2 6,a 8 6,则s 9 _______. 4. 等差数列 a n 中, a 2 9, a 5 21,则 a n _________. 5. 等差数列 a n 中， a 2 a 5 11, a 4 7, 则 a 8 _____ . 6. 在等差数列 a n 中 a 1 a 4 a 7 39,则 a 2 a 5 a 8 33, 则 a 3 a 6 a 9 ____ 7．在等差数列 a n 中，若 a 3 +a 4 +a 5 +a 6 +a 7 =450 , 则 a 2 +a 8 =_______. 8.已知等差数列 a n 中， a 2与 a 6 的等差中项为 5 ， a 3与 a 7 的等差中项为 7 ，则 a n . 9．等差数列 a n 中， S n =40， a 1 =13，d= -2 时， n=______________. 10 ．已知等差数列 a n 的前 n 项和为 s , s 7 35, s 80, 则 a 1 __, d=____. n 10 11. 已知等差数列 a n 的前 m 项和为 30, 前 2m 项和为 100, 则前 3m 项和为 ____. 12.在等差数列 a n 中 a 1 a 2 a 3 15, a 4 a 5 a 6 3, 则s ____ 12 13. 等差数列 a n 中 , 若a 10 100, a 100 10, 那么 a 110 _____. 14.等差数列 a n 中, a 1 <0, s 25 s 45, 若 最小， s n 则 n=______ 15．已知等差数列 { a n } 中， a 3 a 7 16, a 4 a 6 0, 求 { a n } 前 n 项和 s n . 16.等差数列 { a n } 的前 n 项和记为 S n ，已知 a 10 20, S 20 410， （1）求数列 { a n } 的通项公式； （2）若 S n =135，求以 n ．
二年级语文上册基础知识专项练习题
二年级语文上册基础知识专项练习题 一、我会选。 做作棵颗圆园块快优尤青清到倒苹坪 （）业一（）树校（）（）慢（）其（）凉（）车（）果（）事一（）枣（）形石（）（）秀（）山迟（）草（） 二、我能给下列带点宇选择正确的读音，并打上“√”。 1．昨天，我们全班同学都（dū dōu）去首都（dū dōu）北京参观。 2．中（zhōng zhòng）间的小鸟被猎人打中（zhōng zhòng）了。 3．你别干（gān gàn）了，小鱼都会干（gān gàn）死的。 4．你能把那本书还（huán hái ）给我吗？我还（huán hái ）没看完a 5．她很好（hǎo hào）学，不是看书就是问问题，真是好学的好（hǎo hào）姑娘。 6.他觉（juã jiào）得没什么意思，还不如去睡觉（juã jiào） 7.老师在教（jiào jiāo）室里教（jiào jiāo）同学们画画。 8.漂（piāo piào）亮的纸船飘（piāo piào）呀飘，飘到小熊的家门口。 9.为（wãi wâi）什么这件事让我感到很为（wãi wâi）难呢？ 三、我会给下面的字加上不同的偏旁变成新字。 包（）（）（）令（）（）（）兆（）（）（）良（）（）（）皮（）（）（）青（）（）（） 四、古诗训练。 背诵《赠刘景文》、《山行》。赠刘景文（）代诗人（）（）（）（）（）擎（）盖，菊残犹（）傲（）（）。（）（）（）（）君（）（），（）（）橙（）橘（）（）。 1、这首诗写的是（）的景色。 2、这首诗表示颜色的词有：（）、（）《》（）代诗人（）（）（）寒（）（）径斜，（）（）（）（）有人家。停（）（）（）（）（）晚，（）（）（）（）（）（）（）。1、这首诗的题目是《》。 2、这首诗写的是（）的景色。 3、这首诗主要描写了：（）、（）、（）、（）、（）等景物。
(完整版)新概念青少版入门级b-unit1练习题
新概念青少版入门级(B) Unit 1 单元练习题日期英文名家长签字 一、单词( words ) 爷爷，外公，祖父，外祖父 奶奶，外婆，祖母，外祖母 妈妈爸爸 伯母，婶婶；姑姑，阿姨，舅妈 伯父，叔叔；姑父，姨夫，舅舅 堂（表）兄弟姐妹 姐妹兄弟 这，这个那，那个 是 男孩女孩 男人女人 瘦的胖的 高的小的 二、知识点( knowledge points ) 1、，是代词。指时间或空间上较近的人及事物。 2、，是代词。指时间或空间上较远的人及事物。 3、区别成人的性别用和。 4、区分小孩子的性别用和。 5、用来提问“人”，用来提问“物”。
6、在回答“this”和“that”作主语的疑问句时，常用“”代替“this”和“that”比如： ——Is this/ that a car? 这/那是一辆小汽车吗？ ——Yes, is. / No, isn’t. 是的，它是。/ 不，它不是。 ——Who’s this/ that? 这/那是谁？is grandfather. 这/那是爷爷。 ——What’s this/that? 这/那是什么？Is a ruler.这/那是一把尺子。 7、缩写(abbreviations) that is= who is= it is= what is = she is= he is= it is not= 三、句型(sentences)（请把下面的汉语句子翻译成英语） 1、那是你的妈妈吗？ ——是的，那是。 ——不，那不是。 2、那是我的爸爸。这是李明。 3、这是谁？ 4、这是一本书吗？ 5、那是一支钢笔吗？ 6、那是谁？它是Kim。 7、那个女孩是谁？她是Jenny。 8、那个男孩是谁？他是Jerry。 9、这个女人是谁？她是Amy。 10、这个男人是谁？他是Kay。
等差数列基础题训练
基础题训练1 1. 等差数列{}n a 中,已知,2,101-==d a 则=6a ——. 2. 等差数列{}n a 中,已知=++==76593 ,9,1a a a a a 则_______. 3. 等差数列{}n a 中,==-=982,6,6s a a 则_______. 4. 等差数列{}n a 中,===n a a a 则,21,952_________. 5. 等差数列{}n a 中，_____,7,118452=-=-=+a a a a 则. 6. 在等差数列{}n a 中,33,39852741=++=++a a a a a a 则=++963a a a 则____ 7．在等差数列{}n a 中，若34567a +a +a +a +a =450,则28a +a =_______. 8.已知等差数列{}n a 中，26a a 与的等差中项为5，37a a 与的等差中项为7，则n a = . 9．等差数列{}n a 中，n S =40，1a =13，d = -2 时，n =______________. 10．已知等差数列{}n a 的前n 项和为__,,80,35,1107===a s s s n 则d=____. 11. 已知等差数列{}n a 的前m 项和为30, 前2m 项和为100, 则前3m 项和为____. 12.在等差数列{}n a 中,3,15654321=++=++a a a a a a =12s 则____ 13. 等差数列{}n a 中,._____,10,10011010010===a a a 那么若 14.等差数列{}n a 中, 1a <0, 最小，若n s s s ,4525=则n=______ 15．已知等差数列{n a }中，,0,166473=+-=a a a a 求{n a }前n 项和n s . 16.等差数列{}n a 的前n 项和记为n S ，已知102020,410a S ==， （1）求数列{}n a 的通项公式； （2）若S n =135，求以n ． 基础题训练2 1.{a n }为等差数列，且a 7－2a 4＝－1，a 3＝0，则公差d ＝ ( ) A ．－2 B ．－12 C.12 D ．2
中考语文基础知识强化训练及答案
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沪教版初中英语七年级Unit-2基础知识练习及答案
沪教版初中英语七年级Unit-2基础知识练习及答案
Unit 2 (Reading) 基础知识卷 一、词语填空(共10小题) 用方框中的单词或短语完成下列句子。 tick skiing possible store perfect lies coast excellent French south 1. 法国的葡萄酒世界闻名。 ________ wine is very famous all over the world. 2. 阅读这篇文章并标出关键信息。 Read the passage and ________ the key information. 3. 现在坐火车去西藏成为了可能。 It is ________ to get to Tibet by train now. 4. 这家新百货商店离我们学校很近。 This new ________ is close to our school. 5. 麦克的梦想是将来成为一名优秀的科学家。Mike’s dream is to be a(n) ________ scientist in the future. 6. 你去过美国南部吗？ Have you been to the ________ of America? 7. 沈阳位于中国的东北部。 Shenyang ________ in the North-east of China.
8. 我的房子靠海。 I have a house on the ________. 9. 李明为这个问题做了一个完美的回答。 Li Ming gives a ________ answer to the question. 10. 冬天我们可以去棋盘山滑雪。 We can go ________ on Qipan Mountains in winter. 二、单项填空(共10小题) ( ) 1. ______ is one of the nearest countries of Britain. A. China B. France C. Japan D. America ( ) 2. New York is a city on the east ______ of the USA. A. way B. line C. coast D. side ( ) 3. They sell ______ coffee in some department stores in our city. Everyone enjoys it. A. cool B. bad C. cheerful D. perfect
(基础模块上unit1)_Unit1_单元练习
Unit1 单元练习 一．语音知识：从A、B、C、D四个选项中，找出划线部分与所给单词划线部分读音相同的选项。 1. room A. bedroom B. good C. football D. school 2. come A. welcome B. love C. handsome D. hot 3. Saturday A. glad B. want C. make D. later 4. large A. popular B. warm C. hard D. quarter 5. great A. seat B. meat C. break D. speak 二．词汇与语法知识：从A、B、C、D四个选项中，选择出可以填入空白处的最佳答案。 6. Hello,John! Welcome ____ Shijiazhuang. A. at B. to C. in D. / 7. I?ll be glad _________ with you. A. to go B. going C. go D. gone 8. My house is ____ the fifth floor. A. in B. at C. into D. on 9. I like playing _ football, so my father bought _ football for me. A. a; the B. an; the C. /; / D. /; a 10. There are ___ students on the playground. A. a lot B. a lots of C. a lot of D. lot of 11. He does morning exercises ______. A. everyday B. every day C. someday D. some day 12. _____ beautiful the garden is! A. What B. How C. What a D. How a 13. _____ beautiful garden it is! A. What B. How C. What a D. How a 14. Thank you very much _____ your help. A. to B. as C. for D. because 15. Our classroom building is ______ the dinning-hall. A. next to B. next on C. at D. to 16. There are sixty classrooms and many _____ rooms in this building. A. teacher B. teachers C. teacher?s D. teachers? 17. As a student, we must study _______. A. hard B. hardly C. harder D. hardest 18. She usually lets the child _____ the kind of funny things. A. do B. does C. to do D. doing 19. Can you show me the way ____ the railway station? A. of B. at C. on D. to 20. There _____ a dinning room and two bedrooms in my house. A. be B. is C. are D. has 21. There _____ three students and a professor in the room. A. be B. is C. are D. have 22. _____ your father a doctor?
数学等差数列练习题
练习题：等差数列 第一类：已知等差数列的首项a1，项数n，公差d, 求末项用公式：a n= a1+（n-1）×d （1）一个等差数列的首项为5，公差为2，那么它的第10项是（）。 （2）等差数列7、11、15……、87，问这个数列共有（）项。（3）等差数列3 、7 、11…，这个等差数列的第（）项是43。（4）已知等差数列的第1项为12，第6项为27。求公差（）。 （5）已知一个等差数列的公差为2，这个等差数列的第10项是为23，这个等差数列的首项是（）。 （6）一堆木料，最下层有24根，往上每一层都比下一层少2根，共10层，最上层有（）根木料。
（7）把70拆成7个自然数，使这7个数从小到大排成一行后，相邻两个数的差都相等，那么，中间的数是（）。 （8）5个连续奇数的和是35，其中最大的奇数是（）。 第二类：已知等差数列的首项a1，末项a n，项数n, 求和用公式：s n=（a1+ a n）×n÷2 ［或s n=中间数×项数］ 1、已知等差数列2，5，8，11，14，17，20，求这个数列的和是（）。 2、等差数列7+11+15+19+23+27+31+35的和是（） 3、求1+2+3+4+5+6+7+ (20) 4、1+3+5+7+9+11+ (19)
5、已知等差数列的首项是5，末项是47，求这个数列共有8项，求这个数列的和是（）。 6、王师傅每天工作8小时，第一小时加工零件5个，从第二小时起每小时比前一小时多加工相同的零件，第8小时加工了23个，王师傅一天加工零件（）个。 7、已知等差数列2，5，8，11，14…，求前11项的和是多少？ 8、数列1、4、7、10、……，求它的前21项的和是多少？ 9、等差数列7，11，15，………87，这个数列的和是多少？
长方体和正方体基础知识与练习题专项练习
长方体和正方体的表面积 我们已经学习过了长方体和正方体的表面积计算公式 长方体的表面积： 若长方体的长、宽、高分别用字母a、b、c表示，则长方体的表面积可表示为： 正方体的表面积： 若正方体的棱长用字母a表示，则正方体的表面积可表示为： 我们必须熟悉长方体和正方体的特点 1、长方体有（）个顶点，有（）条棱，有（）个面。 2、相交于长方体一个顶点的三条棱分别叫做长方体的（）、（）和（），它们各有（）条。那么长方体的棱长和可表示为（） 3、长方体的相对的两个面都（）；若长方体有一个面是正方形，则长方体有（）个面是一样的长方形。把一个长方体平均分开，正好成为两个相等的正方体（长比宽长），想一想这样的长方体的长是宽的（）倍，长是高的（）倍。 1、正方体有（）顶点，有（）条棱，有（）面；（）都相等的长方体叫正方体，正方体是（）长方体，6个面都是（），6个面的面积（），12条棱的长度都（）。 （1）长方体的体积=（），用字母表示为（）正方体的体积=（），用字母表示为 （） 思考下列问题 ①若已知长方体的体积为V，长为a，宽为b，则如何表示高c：（） ②若已知长方体的体积为V，长为a，高为c，则如何表示宽b：（） ③若已知长方体的体积为V，宽为b，高为c，则如何表示长a：（）
④若已知正方体的棱长和为L，则正方体棱长为（），则体积表示为： （2）单位换算 54厘米=（）分米 3.6平方米=（）平方分米 3.083dm=（）3 cm 4600平方厘米=（）平方分米 2.5L=（）3cm36003cm=（）mL （3）判断正误 ①体积单位比面积单位要大（） ②体积单位之间的进率都是1000 （） ③一个长方体底面积不变，高越大，体积越大（） ④油箱的体积就是油箱的容积；（） ⑤计算容积，只能用升和毫升作单位。（） 例1、做一种横截面是边长为4分米的正方形，高是2.5米的长方体烟囱管，20节这样的烟囱管至少要用铁皮多少平方米？ 例2、一个长方体的表面积是40平方厘米，把它平均分开，正好成为两个相等的正方体，每个正方体的表面积是多少平方厘米？ 例3、用一根长84厘米的铁丝做成一个长为9厘米、宽为6厘米的长方体框架，然后糊上一层彩纸，彩纸的面积至少有多大？ 例4、一个正方体木块，表面积是50平方米，如果把它截成8个体积
沪教版初中英语七年级Unit-7基础知识练习及答案
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