Science is difficult, it’s very interesting. A. so B. and C. but D. because 题目和参考答案——青夏教育精英家教网—

题目内容

Science is difficult, it’s very interesting.

A. so B. and C. but D. because

练习册系列答案

相关题目

根据下列句子的意思及所给单词的首字母或汉语提示，写出各单词的正确形式。每空限填一词。(10分)

1.Science is one of my favorite s___________. How about you?

2.Could you give us some a___________ on how to learn English well? -I'd be glad to.

3.Doctors w________ us to wash our hands before meals to keep diseases away.

4.The more we get together, the ___________ (快乐) we will be.

5.So far, we've ______________ (成功) in saving thousands of people in danger.

-I think science is more useful than art.

-I disagree. I think art is science.

A．not so useful as B．less useful than

C．the most useful of D．as useful as

Did you notice the number on the book in a library? That number is part of the system used by libraries to organize their collections of books. And it’s used in many countries. The number on each book tells you exactly what kind of book it is. This system is also useful for knowing where to go in the library to find a book.

In this system, there are ten large groups of books. Each of these groups has its own number, such as 100, 200, etc. So, for example, any books about language will have a number 400. On the other hand, any books about history will have a number 900. So, a number in the hundreds place tells you what general group a book is in. If you find a book that has a number in the 500s, you know it is a book about science.

However, science is a big group, so the tens place is used to make a more detailed set of science books. For example, math books are included in the group of science books. Math books all have numbers between 510 and 519. Books about the history of Africa have numbers between 960 and 969.

The system uses the ones place to give a more exact limit for the subject of a book. A book on the history of South Africa will have the number 968.

As you can see, it is a simple system to use as long as you understand what the numbers mean. With this system, the library can keep its books well organized, and people can easily find the book that they want.

1.The reading is about .

A. libraries

B. working in a library

C. how numbers are organized

D. how books are organized in libraries

2.The number system is NOT used to .

A. find where a book is

B. tell you the title of a book

C. tell you what kind of book a book is

D. organize the collections of books in libraries

3.According to the reading, which sentence is TRUE?

A. The number on a book can’t be bigger than 900.

B. There are ten big groups for books in this system.

C. History books can have any number between 500 and 900.

D. This system uses both numbers and letters for some books.

4.A book about math can be found in the same group of books as .

A. reference books B. school books C. science books D. art books

5.Which two numbers would indicate a book about language and a book about science?

A. 439 and 493 B. 439 and 568 C. 530 and 560 D. 563 and 436

根据短文内容，选择正确的选项。

The world itself is becoming much smaller by using modern traffic and modern communication means(交流方式). Life today is much easier than it was hundreds of years ago, but it has brought new problems. One of the biggest is pollution. To pollute means to make things dirty. Pollution comes in many ways. We see it, smell it, drink it and even hear it.

Man has been polluting the earth. The more people, the more pollution. Many years ago, the problem was not so serious because there were not so many people. When the land was used up or the river was dirty in a place, men moved to another place. But this is no longer true. Man is now slowly polluting the whole world.

Air pollution is still the most serious. It’s bad to all living things in the world, but it is not only one kind of pollution. Water pollution kills fish and pollutes drinking water. Noise pollution makes us become angry more easily.

Many countries are making rules to fight against pollution. They stop the people from burning coal in houses and factories in the city, and from blowing dirty smoke into the air.

The pollution of SO2 is now the most dangerous problem of air pollution. It is mostly caused by heavy traffic. It is certain that if there are fewer people driving, there will be less air pollution.

The earth is our home. We must take care of it. That means keeping the land, water and air clean. And we must try to control the growth of population at the same time.

1.Our world is becoming much smaller .

A. because the earth is being polluted day and night

B. because science is developing

C. because of the rise in population

D. because the earth is blown away by the wind every year

2.Thousands of years ago, life was it is today.

A. much easier than B. as easy as

C. as hard as D. much harder than

3.Pollution comes in many ways. We can even hear it. Here “it” means .

A. water pollution B. air pollution

C. noise pollution D. rubbish

4.What is the most dangerous problem of air pollution?

A. CO2 B. H2O C. SO2 D. CO

5.Air pollution is the most serious kind of pollution because .

A. it’s bad to all living things in the world

B. it makes much noise

C. it has made our rivers and lakes dirty

D. it makes us become angry more easily

Welcome to our school. You can do a lot of things here. Come and join us.

Timetable

Sunday

8:30---11:30

Personal(个人的) Inventions（发明）

You can see many inventions by the students;

you may also bring your own inventions.

Monday

19:00---21:00

Space（太空） and Man

Dr. Thomas West

If you want to know more about the universe（宇宙）.

Wednesday

19:30---21:00

Modern Medicine

Mrs. Lucy Green

Would you like to know medical（医学的） science?

Friday

18:30---21:00

Computer Science

Mr. Harry Morison from Harvard(哈佛)University（大学）.

Learn to use Windows XP.

1.You may have a chance to introduce your inventions on _________.

A. Sunday B. Monday C. Wednesday

2.The person who teaches Computer Science is from___________.

A. Canada B. Australia C America

3.You may learn something about a disease called TB from __________.

A. Dr. West B. Mr. Morison C. Mrs. Green

4.If you want to learn something about satellites(人造卫星), you can go to the class from______.

A. 8:30 to 11:30 on Sunday

B. 19:00 to 21:00 on Monday

C. 19:30 to 21:00 on Wednesday

5.When you want to learn computer, you can ask for help.

A. Dr. West B. Mr. Morison C . Dr. Lucy

试题分类