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本文導(dǎo)讀目錄：

1、農(nóng)機(jī)知識競賽試題答案解析大全(農(nóng)機(jī)知識競賽試題答案解析大全及答案)4

2、農(nóng)機(jī)知識競賽試題答案解析大全(農(nóng)機(jī)知識競賽試題答案解析大全及答案)5

農(nóng)機(jī)知識競賽試題答案解析大全(農(nóng)機(jī)知識競賽試題答案解析大全及答案)4 ♂

高中化學(xué)競賽知識點(diǎn)大全？

高中化學(xué)競賽知識大全

　　一、物 理 性 質(zhì)

　　1、有色氣體：

　　F2(淡黃綠色)、Cl2(黃綠色)、Br2(g)(紅棕色)、I2(g)(紫紅色)、NO2(紅棕色)、O3(淡藍(lán)色)，其余均為無色氣體。其它物質(zhì)的顏色見會考手冊的顏色表。

　　2、有刺激性氣味的氣體：

　　HF、HCl、HBr、HI、NH3、SO2、NO2、F2、Cl2、Br2(g);有臭雞蛋氣味的氣體：H2S。

　　3、熔沸點(diǎn)、狀態(tài)：

　?、?同族金屬從上到下熔沸點(diǎn)減小，同族非金屬從上到下熔沸點(diǎn)增大。

　?、?同族非金屬元素的氫化物熔沸點(diǎn)從上到下增大，含氫鍵的NH3、H2O、HF反常。

　?、?常溫下呈氣態(tài)的有機(jī)物：碳原子數(shù)小于等于4的烴、一氯甲烷、甲醛。

　?、?熔沸點(diǎn)比較規(guī)律：原子晶體>離子晶體>分子晶體，金屬晶體不一定。

　?、?原子晶體熔化只破壞共價鍵，離子晶體熔化只破壞離子鍵，分子晶體熔化只破壞分子間作用力。

　?、?常溫下呈液態(tài)的單質(zhì)有Br2、Hg;呈氣態(tài)的單質(zhì)有H2、O2、O3、N2、F2、Cl2;常溫呈液態(tài)的無機(jī)化合物主要有H2O、H2O2、硫酸、硝酸。

　?、?同類有機(jī)物一般碳原子數(shù)越大，熔沸點(diǎn)越高，支鏈越多，熔沸點(diǎn)越低。

　　同分異構(gòu)體之間：正>異>新，鄰>間>對。

　?、?比較熔沸點(diǎn)注意常溫下狀態(tài)，固態(tài)>液態(tài)>氣態(tài)。如：白磷>二硫化碳>干冰。

　?、?易升華的物質(zhì)：碘的單質(zhì)、干冰，還有紅磷也能升華(隔絕空氣情況下)，但冷卻后變成白磷，氯化鋁也可;三氯化鐵在100度左右即可升華。

　?、?易液化的氣體：NH3、Cl2 ，NH3可用作致冷劑。

農(nóng)機(jī)知識競賽試題答案解析大全(農(nóng)機(jī)知識競賽試題答案解析大全及答案)5 ♂

初中英語競賽試題答案？

Part One:Listening Test Part(共2 0分)

I.聽辨單詞:從ABCD中選出你所聽到的單詞，每個單詞讀兩遍(5分)

( ) 1. A. name B. game C. am D. alarm

( ) 2. A. baseball B. volleyball C. football D. basketball

( ) 3. A. chair B. where C. spell D. parent

( ) 4. A. these B. those C. they D. he

( ) 5. A. play B. table C. zero D. photo

II. 看圖，聽錄音，選擇與你所聽到的內(nèi)容相符的圖畫。(5分)

1.________ 2.________ 3. ________

4.________ 5.________

III.聽問句，選答語(5分)

( ) 1. A. My name is Bill. B. Nice to meet you. C. His name is Jim.

( ) 2. A..OK. B. Good. C. Thanks

( ) 3. A. That’s all right. B. You are welcome. C.Thank you.

( ) 4. A. That is a book. B. This is a book. C. It’s a book.

( ) 5. A. It’s six. B. It’s seven. C. It’s one

IV.. 聽對話，補(bǔ)全對話中所缺的單詞。(5分)

M: Let's play baseball.

W: I don't have a baseball.

M: Well. Let's play __1__.

W: That sounds fun. Where's __2__ tennis racket?

M: It's in my backpack. Do you have a tennis racket?

W: No, I don't. I have a __3__ ball and a volleyball. Does your sister have a tennis racket?

M: No, she doesn't. She plays__4__.

W: Then let's play soccer.

M: That sounds 5 .

Part two: Written Test Part(100分)

選擇題部分(50分)

I.單項選擇(共15分，每小題1分)

1. What’s this _____ English?

A. in B. on C. with D. at

2. There is ______ orange and _______ ruler on the desk.

A. a, an B. an, a C. a, a D. an, an

3. This isn’t ____ quilt. Mine is on that bed.

A. I B. me C. my D. myself

4. Eric and Dale ______my new friends.

A. am B. is C. are D. be

5. What is _______ name?

A. you B. your C. yours D. you’re

6. -- _______! Where is my cup? -- _______, I don’t know.

A. Excuse me, Yes B. Yes, Sorry C. Excuse me, Sorry D. Sorry, Yes

7. Please call me_________62783366.

A. on B. in C. at D. of

8. This is a photo _____ John’s family.

A. of B. at C. on D. in

9. Do you have the tennis rackets?

Yes, I______.

A. have B. do C. has D. does

10. My parents like eggs and milk _________ breakfast.

A. in B. on C. at D. for

11. ______ do you spell the word "white"?

It’s W-H-I-T-E, white.

A. What B. Where C. Why D. How

12 “CCTV” is __________.

A.世界衛(wèi)生組織 B英國廣播公司 C中國中央電視臺 D 紅十字會

13. Sonia _________ a sports collection.

A. has B. have C. having D. to have

14.--What’s his name? ---Tony.

A. last B.first C. and D. family

15. My grandma _______ TV every evening.

A. looks B. looks at C. watches D. sees

II、完形填空:(共15分，每小題1分)

(A) 閱讀下面一封短信及所給圖片，根據(jù)短信內(nèi)容及圖片所示，從第16~20小題所給的A、B、C、D四個選項中，選擇最佳選項。(5分)

Dear Tommy,

Can you 31 some things 32 school? I need my 33 , my notebook and a pen. My hat is 34 the chair. The notebook is 35 , and my pen is on the table.

Thanks,

Sally

( 16. A bring. B. take C. have D. getting

( ) 17. A. in B. a C. to D. of

( ) 18. A. ruler B. hat C. math book D. CDs

( )19. A. on B. under C. near D. next to

( ) 20. A. on the bed B. on the table

C. on the dresser D. on the floor

(B). 對號入座(10分)

( ) 21. Are your keys under the sofa?

( ) 22. Where’s your hat?

( ) 23. What’s under the bed?

( ) 24. Is your ID card on the dresser?

( ) 25. Where are your pencils?

( ) 26. How do you spell your name?

( ) 27. Do you have a soccer?

( ) 28. Let’s play baseball.

( ) 29. Does he have a tennis racket?

( ) 30.Hi, my name is Guo Peng.

a. My baseball.

b. Yes, they are.

c. No, it isn’t.

d. They’re on the table.

e. It’s on the dresser.

f. Hi, I’m Smith.

g. No, he doesn’t.

h. Yes, l do.

i. That sounds fun.

j. J-A-N-E.

III、閱讀理解: (共20分，每小題2分)

( A )

LOST AND FOUND

Found:

Is this your watch?

Please call Paul at 439-6175.

Lost:

My backpack.

Blue with a duck(鴨)on it.

Please call Linda.

Phone#416-3592.

Found:

Is this your English-Chinese dictionary?

Red.

Under my desk.

Please call Alan at 485-7700.

Lost:

My school ID card.

My name is Jim.

Please call 465-0921.

Found:

Is this your cat(貓)?

It’s white and black.

Please call Gina .Phone #458-3216.

請根據(jù)上面的失物招領(lǐng)啟事，選擇正確答案。

31.If your watch is lost ,you should call--- to ask.

A. 439-6175 B. 485-7700 C.458-3216

32.Linda’s is lost.

A. duck B. cat C. blue backpack

33.Alan found(發(fā)現(xiàn))an English-Chinese dictionary .

A. on his desk B. under his desk C. in his desk

34.If you find a school ID card, it may be .

A. Alan’s B. Jim’s C. Paul’s

35. Gina found .

A. a white and black cat B. a blue backpack C. a red dictionary

( B )

Mr. Smith is an English man. He teaches English well. His English classes are very interesting. He likes us and we like him, too. Mr. Smith has two children-Tom and Mary. Tom is seven and his sister, Mary, is four. Tom goes to school but Mary doesn't. Mr. Smith likes wearing a T-shirt and jeans(牛仔褲). Football is his favorite sport. After school we often have a baseball match. Sometimes Mr. Smith watches and joins us. He plays baseball just for fun.

根據(jù)短文內(nèi)容選擇正確答案。

36. Mr. Smith is ______.

A. a Chinese teacher B. an English driver

C. a Japanese teacher D. an English teacher

37. How many sons does Mr. Smith have?

A. Only one. B. Two.

C. Three. D. Not many.

38. Mary doesn't go to school because ______.

A. she looks beautiful B. she is seven

C. she is only four D. she doesn't like school

39. ______ is Mr. Smith's favorite sport.

A. Baseball B. Football

C. Running D. Volleyball

40. The story (故事) is about ______.

A. Mr. Smith's son B. Mr. Smith

C. Tom and Mary D. a basketball

非選擇題部分(50分)

IV、按照順序在四線格內(nèi)默寫英語26個英文字母

V. 根據(jù)句意及首字母，填入所缺的單詞。(每小題1分,共10分)

1.My name is Sandy Jordan. Sandy is my f name.

2.Carrots, broccoli and tomatoes are v .

3.The colors of national flag(國旗)are red and y .

4.My father and mother are my p .

5.Boys like to play c games.

6.The book is very i .

7.Your brother is a good r .

8.It’s a boy. H name is Tony.

9.I have a s of keys.

10.Mary has an ice c every day.

VI.用方框中的單詞補(bǔ)全對話。(10分)

I’m what’s have yes you let’s don’t my

1. A: Hi! My name’s nick.

B: Hi, Nick! Jane.

A: Nice to meet ,Jane.

B: your last name, Nick?

A: last name is Smith.

2. A: play basketball.

B: I like basketball.

A: Do you a computer game?

B: ,I do.

A: Let’s play computer games!

VII.按要求改寫句子:(每 小 題 2分，共10分)

1. That is an English book. (改為復(fù)數(shù)句子)

English .

2. My phone number is 3760486.(對劃線提問)

is your phone number?

3. Is this Lucy’s room? (否定回答)

, .

4.They have three meals. (變?yōu)橐话阋蓡柧?

they three meals?

5.like, does, Tom, eggs, (?) (連成句子)

?

VIII: 書面表達(dá):根據(jù)表格內(nèi)容，寫一篇60詞左右的短文。(10分)

姓名 Tony

性別 男

電話號碼 32641589

家庭成員 祖父母、父母和自己

愛好 喜歡和朋友一起踢足球、打網(wǎng)球

小收藏 三個足球，兩副網(wǎng)球拍和兩副棒球拍

珍愛的物品 一個英式足球

聽力材料:

I.聽選單詞:

1. game 2. baseball 3. spell 4. they 5. play

II. 看圖，聽錄音，選擇與你所聽到的內(nèi)容相符的圖畫。

1. M: Do you like hamburgers?

W: Yes, I do. I like chicken, too.

2. M: Is this a photo of your friend?

W: No, it isn't. It's a photo of my family.

3. M: Do you have a ping-pong ball?

W: Yes, I do. I have a basketball, too.

4. M: What do you like?

W: I like fruit.

5. M: Where is the map?

W: It's on the wall.

III、聽問句，選答語.

、1. What’s your name ? 2. Ann, sit down, please .

3.Sorry . 4. What’s that ? 5. What’s three and four ?

IV. 聽對話，補(bǔ)全對話中所缺的單詞。(5分)

M: Let's play baseball.

W: I don't have a baseball.

M: Well. Let's play tennis.

W: That sounds fun. Where's your tennis racket?

M: It's in my backpack. Do you have a tennis racket?

W: No, I don't. I have a soccer ball and a volleyball. Does your sister have a tennis racket?

M: No, she doesn't. She plays volleyball.

W: Then let's play soccer.

M: That sounds good.

聽力答案:

I: 1. game 2. baseball 3. spell 4. they 5. play

II: 1--5 B A E C D

III: 1-5 A C A C B

IV:(1. tennis 2. your 3. soccer 4. volleyball 5. good

筆試部分答案

I: 1 --5 A B C C B 6--10 C C A A D 11--15 D C A B C

II: 16--20 A C B A D

21--25 b e a c d 26--30 j h i g f

III: 31--35 A C B B A 36---40 D A C B B

IV:略

V: 1、first 2、vegetables 3、yellow 4、parents 5、computer 、6.interesting 7、runner 8、his 9、set 10、cream

VI: 1. I’m you What’s My

2. Let’s don’t have yes

VII: 1.Those are books 2. What 3.No, it isn’t

4.DO have 5.Does Tom like eggs?