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英语作业

英语作业
英语作业

英语作业

一、选择题

1.Yesterday he _A___home.

A. went

B. go

C. gone

D. goes

2. Tom __A___his homework just now.

A. has finished

B. finished

C. had finished

D. finish

3. Rose enjoyed_D___ Chinese so much.

A. to learn

B. to be learned

C. being learned

D. learning

4. He is good __A__ mathematics.

A. at

B. for

C. from

D. in

5. You can speak English,__C__?

A. can you

B. couldn’t you

C. can’t you

D. don’t you

6. There is a nail _D___ the wall.

A. on

B. under

C. against

D. in

7. Today it is too hot. Please ___C_ your jacket.

A. put on

B. put in

C. put off

D. put out

8. The word“puzzled”means__D__.

A. passed

B. put

C. excited

D. confused

9. You’d better go there _A___ bus.

A. by

B. through

C. on

D. in

10. The book is _B___.

A. my

B. mine

C. myself

D. me’s

11. There__C__ two dictionaries on the desk.

A. have

B. has

C. are

D. is

12. Thank you _B___ your help.

A. to

B. for

C. towards

D. in

13. _D__ my way home I met an old friend of mine.

A. From

B. In

C. For

D. On

14. The General Manager’s office is _A___ the second floor.

A. on

B. in

C. to

D. at

15. He often __C__ foreign literature.

A. study

B. studys

C. studies

D. studying

16. We must do the work A___ your help.

A. with

B. under

C. at

D. for

17. His father _D___ during the war.

A. is killed

B. killed

C. killing

D. was killed

18. He said that he __B__ to Shanghai tomorrow morning.

A. is to go

B. would go

C. will go

D. were to go

19. I saw three ___B_ on the street yesterday.

A. Americen

B. Americans

C. americans

D. americen

20. Professor Smith has _A___ English for many years in China.

A. taught

B. teached

C. tought

D. teaching

二.完形填空并注意词形变化

mention have……over particular express arrange

look forward to specify on time invitation occasion

1. We _ had ___ Sue and Steve __ over __ for dinner last night.

2. We have _ arranged ____ the meeting for Saturday afternoon.

3. We are _ looking forward to _____ seeing you again.

4. I have met Mr. White on several _ occasions _____.

5. He is _ particular _____about what he eats.

6. Do the trains ever run _ on time ____ here?

7. Please __ specify ____ when you will be away.

8. I can’t easily __ express ___ to you how gratefully I am for your help.

9. ---It was very kind of you to invite us.

---Don’t __ mention ___it. It was nice to see you again.

10. Thank you for the __ invitation____. We’d be very happy to come.

三. 阅读理解

(1)

The United States is a very large country. It has many kinds of landscapes and many different kinds of people.

In the East, the countryside is green and fresh. Here are some of the first states and some of the big cities. New York and the capital, Washington D.C., are in the East.

In the South, there is the beautiful city of New Orleans, the capital of Jazz. It is sometimes hot here, and the people here are very different from those in the East.

The Central Plains of the United States are fertile with big fields of wheat and corn.

In the South-West it is often hot and dry. But the deserts and mountains are beautiful. And California, on the West Coast, is famous as a “paradise” state.

The weather in the Mid-West, near the Great Lakes, is often cold and windy, and there is a lot

of snow in winter.

1. It’s well-known that the United States has many different kinds of _D___.

A. landscapes

B. people

C. climates

D. all of the above

2. Some of the first states and some of the big cities are in the East, including __A___.

A. Washington D.C.

B. New Orleans

C. California

D. Los Angeles

3. New Orleans is famous for its ___C_.

A. ballet

B. countryside music

C. jazz

D. classic music

4. Big fields of wheat and corn can be found in B____.

A. the East

B. the Central Plains

C. the South-West

D. the South

5. In he fifth paragraph, the word “paradise” means _A__.

A. wonderful

B. clean

C. terrible

D. large

(2)

Because there are so many different nationalities in America, visitors can find almost any kind of restaurant in most of the large cities. The telephone book lists restaurants for each city according to the name, area of the city, or kind of food. Restaurants in large cities vary greatly in price. Many restaurants post their menus in the window so you can have some idea of the price and kind of food before you enter. If the menu is not posted, and you are uncertain about how expensive the place is, ask to see a menu before you are seated at a table, or else just ask about the price range. Appearances from the outside can be misleading –what looks like a small, informal restaurant may really be very expensive, and what looks like a large, expensive restaurant may be very reasonable.

You can get a meal for about $4 or $5 or slightly more if you eat in snack bars(快餐店) or coffee shops, but in most city restaurants you should expect to pay $8 to $10 a person for dinner, with alcoholic drinks and wine extra. Prices in New York City are even higher.

6. Restaurants for each city are listed in the telephone book according to the _D___.

A. area of the city

B. name of the restaurant

C. kind of food

D. any of the above

7. The menu is posted __A__ in many restaurants.

A. in the window

B. on the door of the restaurants

C. on the tables

D. in the front of the restaurants

8. If you are not sure about the prices of the restaurants, what should you do?__D__

A. ask to see a menu before you sit down at a table

B. ask to post a menu in the window

C. just ask the price range

D. either A or C

9. In most city restaurants, what is the average dinner price range for a person?__D__

A. $4 to $6

B. $4 to $8

C. $6 to $8

D. $8 to $10

10. What is the main idea of the passage?_D___

A. Prices in New York City are even higher.

B. visitors can find almost any kind of restaurant in most of the large cities.

C. Appearances of the restaurants from the outside can give you some wrong ideas.

D. Restaurants in big cities vary greatly in price.

四.英汉互译

1.英译汉

a. He is always late for school.

答他上学总是迟到

b. Tom was cooking when I went to his house yesterday.

答我昨天去汤姆家时,他正在做饭

c. I haven’t seen him since he joined in the army.

答自从他参军后我再也没见过他

d. Judging from his appearance, he can’t be a doctor.

答从他的相貌来看,他肯定不是医生

e. We will finish completing the task in three days.

答我们将于三天之内完成这项任务

2. 汉译英(25%)

a. 我们坐火车去吗?

答Will we go by train?

b. 昨天我在街上碰到了一个多年没见的朋友。

答Yesterday I met an old friend of mine whom I haven’t seen for many years.

c. 我已经放弃了这种想法。

答I have given up this idea.

d. 你难道不相信我的话吗?

答Don’t you believe what I said?

e. 这项工作什么时候才能完成?

答When will the work be finished?

一. 选择题

1.Yesterday he __A__home.

A. went

B. go

C. gone

D. goes

2. Tom ___A__his homework just now.

A. has finished

B. finished

C. had finished

D. finish

3. Rose enjoyed___D_ Chinese so much.

A. to learn

B. to be learned

C. being learned

D. learning

4. He is good __A__ mathematics.

A. at

B. for

C. from

D. in

5. You can speak English,_C___?

A. can you

B. couldn’t you

C. can’t you

D. don’t you

6. There is a nail _D___ the wall.

A. on

B. under

C. against

D. in

7. Today it is too hot. Please _C___ your jacket.

A. put on

B. put in

C. put off

D. put out

8. The word“puzzled”means__D__.

A. passed

B. put

C. excited

D. confused

9. You’d better go there _A___ bus.

A. by

B. through

C. on

D. in

10. The book is _B___.

A. my

B. mine

C. myself

D. me’s

11. There__C__ two dictionaries on the desk.

A. have

B. has

C. are

D. is

12. Thank you ___B_ your help.

A. to

B. for

C. towards

D. in

13. __D_ my way home I met an old friend of mine.

A. From

B. In

C. For

D. On

14. The General Manager’s office is __A__ the second floor.

A. on

B. in

C. to

D. at

15. He often __C__ foreign literature.

A. study

B. studys

C. studies

D. studying

16. We must do the work __A_ your help.

A. with

B. under

C. at

D. for

17. His father __D__ during the war.

A. is killed

B. killed

C. killing

D. was killed

18. He said that he __B__ to Shanghai tomorrow morning.

A. is to go

B. would go

C. will go

D. were to go

19. I saw three __B__ on the street yesterday.

A. Americen

B. Americans

C. americans

D. americen

20. Professor Smith has _A___ English for many years in China.

A. taught

B. teached

C. tought

D. teaching

二.完形填空并注意词形变化

mention have……over particular express arrange

look forward to specify on time invitation occasion

1. We _ had ___ Sue and Steve over ____ for dinner last night.

2. We have __ arranged ___ the meeting for Saturday afternoon.

3. We are __ looking forward to ____ seeing you again.

4. I have met Mr. White on several _ occasions _____.

5. He is __ particular ____about what he eats.

6. Do the trains ever run __ on time ___ here?

7. Please _ specify _____ when you will be away.

8. I can’t easily express _____ to you how gratefully I am for your help.

9. ---It was very kind of you to invite us.

---Don’t __ mention ___it. It was nice to see you again.

10. Thank you for the ___ invitation___. We’d be very happy to come.

三.阅读理解

(1)

The United States is a very large country. It has many kinds of landscapes and many different kinds of people.

In the East, the countryside is green and fresh. Here are some of the first states and some of the big cities. New York and the capital, Washington D.C., are in the East.

In the South, there is the beautiful city of New Orleans, the capital of Jazz. It is sometimes hot here, and the people here are very different from those in the East.

The Central Plains of the United States are fertile with big fields of wheat and corn.

In the South-West it is often hot and dry. But the deserts and mountains are beautiful. And California, on the West Coast, is famous as a “paradise” state.

The weather in the Mid-West, near the Great Lakes, is often cold and windy, and there is a lot of snow in winter.

1. It’s well-known that the United States has many different kinds of __D__.

A. landscapes

B. people

C. climates

D. all of the above

2. Some of the first states and some of the big cities are in the East, including

___A__.

A. Washington D.C.

B. New Orleans

C. California

D. Los Angeles

3. New Orleans is famous for its _C___.

A. ballet

B. countryside music

C. jazz

D. classic music

4. Big fields of wheat and corn can be found in _B___.

A. the East

B. the Central Plains

C. the South-West

D. the South

5. In he fifth paragraph, the word “paradise” means _A__.

A. wonderful

B. clean

C. terrible

D. large

(2)

Perhaps you are going to finish school soon and, like many other students, you want to further your study abroad. Here are some points you should bear in mind if you intend to apply for a scholarship to study in the United States of America.

First of all, you will have to ask for an application form, fill in the form with great care,

and then send it in with a copy of your school records. After that, you will have to ask your teachers to write some letters of recommendation. You will also need to take some tests such as TOEFL and GRE. You may apply to several universities at the same time. Overseas students in the States are not allowed to work in their spare time except in the summer, and you need to get permissions from U.S Immigration to do that.

6. This passage is taken from a booklet for _D___.

A. visiting scholars to America

B. workers who are going to work in America

C. American students who are going to graduate

D. those who want to study in American universities

7. The author intends to give some _D___ in the passage.

A. warnings

B. comments

C. solutions

D. special knowledge

8. What is the first step to take in applying to an American university?B___

A. To send school records

B. To write to ask for application form

C. To provide the TOEFL score report

D. To supply letters of recommendation

9. Which documents are needed to be sent in addition to the application form?_D___

A. A copy of your school records

B. English test score reports

C. Reference letters

D. All of the above

10. Which of the following statements is not true?_A__

A. Overseas students are not allowed to work in their spare time in the States

B. Overseas students must get permission from U.S Immigration to work during the summer

C. Summer is the time when foreign students can work in their spare time

D. You can apply to several universities at the same time

四.英汉互译

1.英译汉

a. He is famous for his novels.

答他以自己的小说而出名

b. Tom was cooking when I went to his house yesterday.

我昨天去汤姆家时,他正在做饭

c. I haven’t seen him since he joined in the army.

自从他参军后我再也没见过他

d. This is my letter of recommendation.

这是我的自荐书

e. We will finish completing the task in three days.

我们将于三天之内完成这项任务

2. 汉译英

a. 我们坐火车去吗?

Will we go by train?

b. 昨天晚上你看电视了吗?

Last night did you watch TV?

c. 我已经放弃了这种想法。

I have given up this idea.

d. 世界上的万事万物都是变化的。

Everything in the world is changing.

e. 你无法否认自己犯错误这一事实。

You can’t deny the fact that you made a mistake.

一. 选择题

1.Yesterday he _A__home.

A. went

B. go

C. gone

D. goes

2. Tom _A____his homework just now.

A. has finished

B. finished

C. had finished

D. finish

3. Rose enjoyed__D__ Chinese so much.

A. to learn

B. to be learned

C. being learned

D. learning

4. He is good ___A_ mathematics.

A. at

B. for

C. from

D. in

5. You can speak English,_C___?

A. can you

B. couldn’t you

C. can’t you

D. don’t you

6. There is a nail __D__ the wall.

A. on

B. under

C. against

D. in

7. Today it is too hot. Please __C__ your jacket.

A. put on

B. put in

C. put off

D. put out

8. The word“puzzled”means__D__.

A. passed

B. put

C. excited

D. confused

9. You’d better go there _A___ bus.

A. by

B. through

C. on

D. in

10. The book is ___B_.

A. my

B. mine

C. myself

D. me’s

11. There_C___ two dictionaries on the desk.

A. have

B. has

C. are

D. is

12. Thank you __B__ your help.

A. to

B. for

C. towards

D. in

13. __D_ my way home I met an old friend of mine.

A. From

B. In

C. For

D. On

14. The General Manager’s office is _A___ the second floor.

A. on

B. in

C. to

D. at

15. He often __C__ foreign literature.

A. study

B. studys

C. studies

D. studying

16. We must do the work _A__ your help.

A. with

B. under

C. at

D. for

17. His father _D___ during the war.

A. is killed

B. killed

C. killing

D. was killed

18. He said that he __B__ to Shanghai tomorrow morning.

A. is to go

B. would go

C. will go

D. were to go

19. I saw three ___B_ on the street yesterday.

A. Americen

B. Americans

C. americans

D. americen

20. Professor Smith has __A__ English for many years in China.

A. taught

B. teached

C. tought

D. teaching

二.完形填空并注意词形变化

mention have……over particular express arrange

look forward to specify on time invitation occasion

1. We __ had __ Sue and Steve _ over ___ for dinner last night.

2. We have _ arranged ____ the meeting for Saturday afternoon.

3. We are __ looking forward to ____ seeing you again.

4. I have met Mr. White on several _ occasions _____.

5. He is __ particular ____about what he eats.

6. Do the trains ever run __ on time ___ here?

7. Please __ specify ____ when you will be away.

8. I can’t easily __ express ___ to you how gratefully I am for your help.

9. ---It was very kind of you to invite us.

---Don’t __ mention ___it. It was nice to see you again.

10. Thank you for the __ invitation ____. We’d be very happy to com e.

三.阅读理解

(1)

Because there are so many different nationalities in America, visitors can find almost any kind of

restaurant in most of the large cities. The telephone book lists restaurants for each city according to the name, area of the city, or kind of food. Restaurants in large cities vary greatly in price. Many restaurants post their menus in the window so you can have some idea of the price and kind of food before you enter. If the menu is not posted, and you are uncertain about how expensive the place is, ask to see a menu before you are seated at a table, or else just ask about the price range. Appearances from the outside can be misleading –what looks like a small, informal restaurant may really be very expensive, and what looks like a large, expensive restaurant may be very reasonable.

You can get a meal for about $4 or $5 or slightly more if you eat in snack bars(快餐店) or coffee shops, but in most city restaurants you should expect to pay $8 to $10 a person for dinner, with alcoholic drinks and wine extra. Prices in New York City are even higher.

1. Restaurants for each city are listed in the telephone book according to the _D___.

A. area of the city

B. name of the restaurant

C. kind of food

D. any of the above

2. The menu is posted _A___ in many restaurants.

A. in the window

B. on the door of the restaurants

C. on the tables

D. in the front of the restaurants

3. If you are not sure about the prices of the restaurants, what should you do?__D__

A. ask to see a menu before you sit down at a table

B. ask to post a menu in the window

C. just ask the price range

D. either A or C

4. In most city restaurants, what is the average dinner price range for a person?__D__

A. $4 to $6

B. $4 to $8

C. $6 to $8

D. $8 to $10

5. What is the main idea of the passage?__D__

A. Prices in New York City are even higher.

B. visitors can find almost any kind of restaurant in most of the large cities.

C. Appearances of the restaurants from the outside can give you some wrong ideas.

D. Restaurants in big cities vary greatly in price.

(2)

Perhaps you are going to finish school soon and, like many other students, you want to further your study abroad. Here are some points you should bear in mind if you intend to apply for a scholarship to study in the United States of America.

First of all, you will have to ask for an application form, fill in the form with great care, and then send it in with a copy of your school records. After that, you will have to ask your teachers to write some letters of recommendation. You will also need to take some tests such as TOEFL and GRE. You may apply to several universities at the same time. Overseas students in the States are not allowed to work in their spare time except in the summer, and you need to get permissions from U.S Immigration to do that.

6. This passage is taken from a booklet for __D__.

A. visiting scholars to America

B. workers who are going to work in America

C. American students who are going to graduate

D. those who want to study in American universities

7. The author intends to give some _D___ in the passage.

A. warnings

B. comments

C. solutions

D. special knowledge

8. What is the first step to take in applying to an American university?_B__

A. To send school records

B. To write to ask for application form

C. To provide the TOEFL score report

D. To supply letters of recommendation

9. Which documents are needed to be sent in addition to the application form?_D___

A. A copy of your school records

B. English test score reports

C. Reference letters

D. All of the above

10. Which of the following statements is not true?_A__

A. Overseas students are not allowed to work in their spare time in the States

B. Overseas students must get permission from U.S Immigration to work during the summer

C. Summer is the time when foreign students can work in their spare time

D. You can apply to several universities at the same time

四.英汉互译

1.英译汉

a. George Washington was the first president of America.

乔治华盛顿是美国第一位总统

b. Tom was cooking when I went to his house yesterday.

我昨天去汤姆家时,他正在做饭

c. I haven’t seen him since he joined in the army.

自从他参军后我再也没见过他

d. This is my letter of recommendation.

这是我的自荐书

e. We will finish completing the task in three days.

我们将于三天之内完成这项任务

2. 汉译英

a. 我认为英语单词很不好记。

I think it is quite difficult to memorize English words.

b. 昨天晚上你看电视了吗?

Last night did you watch TV?

c. 我已经放弃了这种想法。

I have given up this idea.

d. 世界上的万事万物都是变化的。

Everything in the world is changing.

e. 你有什么爱好?

What hobbies do you have?

数学专业英语课后答案

2.1 数学、方程与比例 (1)数学来源于人类的社会实践,包括工农业的劳动,商业、军事和科学技术研究等活动。 Mathematics comes from man’s social practice, for example, industrial and agricultural production, commercial activities, military operations and scientific and technological researches. (2)如果没有运用数学,任何一个科学技术分支都不可能正常地发展。 No modern scientific and technological branches could be regularly developed without the application of mathematics. (3)符号在数学中起着非常重要的作用,它常用于表示概念和命题。Notations are a special and powerful tool of mathematics and are used to express conceptions and propositions very often. (4)17 世纪之前,人们局限于初等数学,即几何、三角和代数,那时只考虑常数。 Before 17th century, man confined himself to the elementary mathematics, i. e. , geometry, trigonometry and algebra, in which only the constants were considered. (5)方程与算数的等式不同在于它含有可以参加运算的未知量。 Equation is different from arithmetic identity in that it contains unknown quantity which can join operations. (6)方程又称为条件等式,因为其中的未知量通常只允许取某些特定的值。Equipment is called an equation of condition in that it is true only for certain values of unknown quantities in it. (7)方程很有用,可以用它来解决许多实际应用问题。 Equations are of very great use. We can use equations in many mathematical problems. (8)解方程时要进行一系列移项和同解变形,最后求出它的根,即未知量的值。To solve the equation means to move and change the terms about without making the equation untrue, until the root of the equation is obtained, which is the value of unknown term. 2.2 几何与三角 (1)许多专家都认为数学是学习其他科学技术的必备基础和先决条件。 Many experts recognize that mathematics is the necessary foundation and prerequisite of studying other science technology. (2)西方国家的专家认为几何起源于巴比伦和埃及人的土地测量技术,其实中国古代的数学家对几何做了许多出色的研究。 The western experts think that geometry had its origin in the measurements by the Babylonians and Egyptians of their lands. Infect, the ancient Chinese mathematicians made much remarkable study for geometry. (3)几何的学习使学生在思考问题时更周密和审慎,他们将不会盲目接受任何结论。 In studying geometry, the student is taught to think clearly and critically and he is led away from the practice of blind acceptance of any conclusions. (4)数学培养学生的分析问题的能力,使他们能应用毅力、创造性和逻辑推理来解决问题。

各阶段英语创意作业的设计

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b-毗喘pyridine 巴比妥酸:barbituric acid 比电导conductance 不规则的:irregular 崩解剂disintegrant C--萃取extraction 成团:ogglomerotion 测量仪measurement 肠液:intestinol fluid d-胆固醇cholestero 对映体:enontiomer 电极electrode 代谢:metobolism f-反相渗透reverse osmosis 分布:disposition g-构象:conformotion 固化:solidize 卜-甲苯toluene 静脉注:introvenous injection 挤压:compress 聚集:aggregate 胶囊capsule I一粒子:particle 立体选择性:stereoselectivity 利用率:availability 灭菌产品sterile products n—粘合剂odhesive P—偏振光:polarized light 片剂tablet 酉己剂elixir 排泄:excretion q一起女台原料starting materials(raw materials) q 醛aldehyde 「一溶解度:solubility 乳剂emulsion 润滑剂lubricant s-释放:release 渗液solution 生物膜:biologic membrane 生物碱okoloid, t…糖浆syrup 甜味剂sweetener w-丸剂pill 微生物microorganism 胃液:gastric fluid 稳定态:steady-state x-?旋光异构现象:optical isomerism 悬浮液suspension 香味剂flavor 稀释剂diluent 形状:shape 吸收absorption 消除:elimination y-胰岛素insulin 压片:tablet compression z-中间体intermediote 重结晶recrystallization 左旋:levorotation 蒸徭distillation 组织tissue a-asymmetric carb on 不对称碳absorption 吸收action 动作odhesive 粘合剂c-contamination 污染chirality:手性compress 压缩composite 合成的compressibility:可压缩性compaction:压紧contaminotion specialize 特殊污染conductivity 电导率control控制clinical:临床的 d- design:设计dry:干燥delivery:传送 e-巳xtgnd:延长epoxide:环氧化物 f- formulation:$ij 剂fluidity:流动性function:功能 g- geometric isomerism:几何异构 h- hormone 激素hydrolysis diastereoisomer:水解非对映异构体 heterogeneous catalyst 多相催化剂, i- irrigating 冲洗 m- metabolite代谢物medication药物治疗medicine内服药mill:研磨measure 尺寸mix:混合microorganisms 微生物 o- ophthalmic 眼药 p- polysaccharide 多糖peptide 肽plosmo 血浆penicillin 青霉素, precursor:前体partition coefficient:狭义分配系数pharmaceutical 制药的 parenteral 注射药物pycogens 热源procedure:程序 q- quality 性质quantity 数量 s- steroid 笛类steric effect:空间效应stereoselectivity:^体选择性 screening:过筛sustain :维持

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3.up, is, to, time, It, get 4.on, you, What, have,do, Thursdays 5.often, My, plays, brother,ping-pong 五、重新排列句子,组成一段完整的对话。 A.Do you have P.E. on Wednesdays? B.Let me have a look. C.Oh, no. We have math today.But I don’t like math. I like P.E. D. What do you have on Wednesday? E.It’s Wednesday. F.What day is it today? G.We have Chinese,English and science. I like Wednesdays. A (三)课外拓展 六、阅读理解。 Jack, Lili, John and Dabao are good friends.John often plays football with Dabao on Saturdays.Jack does his homework every day.Lili likes to do housework.She often does housework on Sundays.They all read books on Mondays. ( )1.Are Jack and Dabao are good friends A.No,they aren’t. B.Yes,they are. ( )2. does his homework every day. A. Jack B. John ( )3. Lili likes to . A. do housework B. do homework ( )4. They on Mondays. A. play football B. read books

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b--吡啶pyridine 巴比妥酸:barbituric acid比电导conductance 不规则的:irregular 崩解剂disintegrant c--萃取extraction 成团:agglomeration 测量仪measurement 肠液:intestinal fluid d--胆固醇cholestero 对映体:enantiomer 电极electrode 代谢:metabolism f--反相渗透reverse osmosis 分布:disposition g--构象:conformation 固化:solidize j--甲苯toluene 静脉注:intravenous injection 挤压:compress 聚集:aggregate 胶囊capsule l--粒子:particle 立体选择性:stereoselectivity 利用率:availability m--灭菌产品sterile products n--粘合剂adhesive p--偏振光:polarized light 片剂tablet 配剂elixir 排泄:excretion q--起始原料starting materials(raw materials) q醛aldehyde r--溶解度:solubility 乳剂emulsion 润滑剂lubricant s--释放:release 渗液solution 生物膜:biologic membrane 生物碱alkaloid, t---糖浆syrup 甜味剂sweetener w--丸剂pill 微生物microorganism 胃液:gastric fluid 稳定态:steady-state x--旋光异构现象:optical isomerism 悬浮液suspension 香味剂flavor 稀释剂diluent 形状:shape 吸收:absorption 消除:elimination y--胰岛素insulin 压片:tablet compression z--中间体intermediate 重结晶recrystallization 左旋:levorotation 蒸馏distillation 组织tissue a--asymmetric carbon不对称碳absorption吸收action动作adhesive粘合剂c--contamination污染chirality:手性compress压缩composite合成的compressibility:可压缩性compaction:压紧contamination specialize特殊污染conductivity电导率control:控制clinical:临床的 d--design:设计dry:干燥delivery:传送 e-- extend:延长epoxide:环氧化物 f-- formulation:制剂fluidity:流动性f unction:功能 g--geometric isomerism:几何异构 h-- hormone激素hydrolysis diastereoisomer:水解非对映异构体 heterogeneous catalyst多相催化剂, i--irrigating冲洗 m-- metabolite代谢物medication药物治疗medicine内服药mill:研磨measure尺寸mix:混合microorganisms微生物 o--ophthalmic眼药 p-- polysaccharide多糖peptide肽plasma血浆penicillin青霉素,precursor:前体partition coefficient:狭义分配系数pharmaceutical制药的parenteral注射药物pycogens热源procedure:程序 q-- quality性质quantity数量 s-- steroid甾类steric effect:空间效应stereoselectivity:立体选择性screening:过筛sustain :维持 t-- treat治疗therapy:治疗 u--uniformity目标v--vaccine疫苗

一起作业错题

五年级下册知识点归纳: 第二单元因数与倍数 1.整除:被除数、除数和商都是自然数,并且没有余数。 2.整数与自然数的关系:整数包括自然数。 3.因数、倍数:大数能被小数整除时,大数是小数的倍数,小数是大数的因数。 例:12是6的倍数,6是12的因数。 (1)数a能被b整除,那么a就是b的倍数,b就是a的因数。因数和倍数是相互依存的,不能单独存在。 (2)一个数的因数的个数是有限的,其中最小的因数是1,最大的因数是它本身。 一个数的因数的求法:成对地按顺序找。 (3)一个数的倍数的个数是无限的,最小的倍数是它本身。 一个数的倍数的求法:依次乘以自然数。 (4)2、3、5的倍数特征 1)个位上是0,2,4,6,8的数都是2的倍数。 2)一个数各个数位上的数的和是3的倍数,这个数就是3的倍数。 3)个位上是0或5的数,是5的倍数。 4)能同时被2、3、5整除(也就是2、3、5的倍数)的最大的两位数是90,最小的三位数是120。同时满足2、3、5的倍数,实际是求2×3×5=30的倍数。 5)如果一个数同时是2和5的倍数,那它的个位上的数字一定是0。 4、完全数:除了它本身以外所有的因数的和等于它本身的数叫做完全数。如:6的因数有:1、2、3(6除外),刚好1+2+3=6,所以6是完全数,小的完全数有6、28等 5:自然数按能不能被2整除来分:奇数、偶数。 奇数:不能被2整除的数。叫奇数。也就是个位上是1、3、5、7、9的数。 偶数:能被2整除的数叫偶数(0也是偶数),也就是个位上是0、2、4、6、8的数。 最小的奇数是1,最小的偶数是0. 关系:奇数+、- 偶数=奇数奇数+、- 奇数=偶数偶数+、-偶数=偶数。 6、自然数按因数的个数来分:质数、合数、1、0四类. 质数(或素数):只有1和它本身两个因数。 合数:除了1和它本身还有别的因数(至少有三个因数:1、它本身、别的因数)。 1:只有1个因数。“1”既不是质数,也不是合数。 最小的质数是2,最小的合数是4,连续的两个质数是2、3。 每个合数都可以由几个质数相乘得到,质数相乘一定得合数。 20以内的质数:有8个(2、3、5、7、11、13、17、19) 100以内的质数有25个:2、3、5、7、11、13、17、19、23、29、31、37、41、43、47、53、59、61、67、71、73、79、83、89、97 100以内找质数、合数的技巧: 看是否是2、3、5、7、11、13…的倍数,是的就是合数,不是的就是质数。 关系:奇数×奇数=奇数质数×质数=合数 最大、最小 A的最小因数是:1;A的最大因数是:A;A的最小倍数是:A; 最小的自然数是:0;最小的奇数是:1;最小的偶数是:0;最小的质数是:2;最小的合数是:4; 7、分解质因数:把一个合数分解成多个质数相乘的形式。 用短除法分解质因数(一个合数写成几个质数相乘的形式)。 比如:30分解质因数是:(30=2×3×5) 8、互质数:公因数只有1的两个数,叫做互质数。 两个质数的互质数:5和7 一质一合的互质数:7和8

西南交大大学英语第五次作业

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