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常用句子

Our chemistry paper is too difficult.我们的化学试卷太难了。

I'm thinking whether I can pass or not.我在想我考试能不能及格。

I like chemistry not because itself is interesting but because there are many experiments in chemistry lab.我喜欢化学不是因为它有趣，而是因为有好多的化学实验。

It's dangerous if one doesn't following our teacher's instructions.

如果不按老师的示范去做那将很危险。

Chemistry is important for me because in the future I want to be a chemist.

将来我想当化学家，所以化学对我来说很重要。

Is chemistry more useful than physics?化学比物理重要吗?

I think chemistry is as important as physics.我认为化学与物理同等重要。

Chemistry becomes so interesting with our teacher's explanation.

化学经我们老师的讲解显得有趣多了。

Do you know what is H2O?你知道H2O是什么吗?

I think chemistry teachers are the same characters with rare hair on the head.

我觉得化学老师都有相同的特点：头发少。

Every time I'm dreaming in class our chemistry teacher pulls me back to his humorous explanation.

每次化学课上我昏昏欲睡的时候，我们的化学老师幽默的讲解又使我精神振作。

The chemical industry is a fast growing industry in China.化学工业在中国是一种发展很快的工业。

Is this a chemical change or a physical change when wood becomes desks?

木材变成桌子是物理变化还是化学变化?www.ExamW.CoM

There will.be a chemistry test tomorrow morning.明天上午考化学。

17.Maths

常用句子

The simplest real numbers are the natural numbers，which are just the ordinary counting number l，

2，3… 最简单的真数是自然数，即平时我们口数的一、二、三…。

One convenient way to visualize the real numbers is by the way of a number line.

将真数形象化的最方便的途径是通过数轴。

The numberπis sometimes approximated by the rational number 22/7。圆周率π约等于22/7。

Rational numbers and irrational numbers together form the set of real numbers.

有理数与无理数一起构成实数。

In mathematics the symbol A = B means A and B are two names for the same thing.

在数学中A = B意思是A、B是同一事物的两个名称。

I become headache with maths problems.我一解数学题就头痛。

A right angle is an angle of 90°，and a straight angle is one of 180°。

直角是90°角，平角是180°角。

Why do we always have maths in the fourth period?为什么我们总在第四节课上数学?

18.History

常用句子

Can you say something about Napoleon?你能说说有关拿破仑的事吗?

I hate the famous persons in history because they make me so busy in memorizing them and the history events.我讨厌历史上的名人因为他们弄得我忙于记忆他们及记忆与他们有关的事件。

Do you know ancient China?你了解古中国吗?

We all take great pride in Chinese long history.我们都以中华民族的悠久历史为自豪。

China is a country with long history.中国是具有悠久历史的国家。

The United States of America is a young country.美利坚合众国是一个年轻的国家。

In 1776，the American colonies declared their Independence from their brother country England.

一七七六年美国各殖民地宣布从其兄弟国家英国脱离出来。

History lesson brings us back to ancient times.历史带我们回到古代。

Which emperor do you like best in Chinese history?在中国历史上你最喜欢哪个帝王?

What should we learn from history?我们该从历史中学到什么?

No one can hold back the wheel of history.没有人能阻挡历史的车轮。

The first successful English colony in America was founded in 1607.

英国在美国第一个成功的殖民地建于1607年。

A new China came into being on October l，1949.新中国成立于1949年10月1日。

Now we Chinese stand up from the old days.现在我们中国人扬眉吐气。

I don't like history. Qing Dynasty makes me sad. It's history of flesh and blood.

我不喜欢历史。清朝的历史令人忧伤，那是血与泪的历史。

19.Geography

常用句子

China lies in Asia，east of the world.中国位于世界的东方，属于亚洲。

To the east of China lies Japan.日本在中国的东部。

The United States of America is situated in the central southern part of North America.

美利坚合众国位于北美的中南部。

I came from Liaoning Province，northeast of China.我来自辽宁省，中国的东北部。

Alaska is the largest of the American 50 states in areas.阿拉斯加是美国五十个州中面积最大的州。

China is a developing country and now she is developing quickly.

中国是发展中国家，现在她在快速地发展。

Taiwan is a part of China;it is one province.台湾是中国的一部分，它是(中国的)一个省。

The biggest commercial city in China is Shanghai.中国最大的商业城市是上海。

Beijing is a capital city of China，while London is a capital city of United Kingdom.

北京是中国的首都而伦敦是英国的首都。

The climate in China is quite different from part to part.中国各地方的气候有相当大的区别。

Beijing time is 13 hours ahead of New York time.北京时间早纽约时间13个小时。

China is rich in natural resources.中国自然资源丰富。

Day light saving time in the United States starts on the last Sunday in April and ends on the last Sunday in October.美国夏令时始于四月最后一个星期天终于十月最后一个星期天。

A jet plane crosses the continental United States from east to west in about five hours.

一架喷气式飞机从东到西横穿美国大陆需五个小时。

China borders many countries on its north，south and west.中国的北部、南部西部和许多国家接壤。

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