2019年公共英语三级(pets3级)口语试题重点句型

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。

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

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.

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?

What courses are you planning to take?你打算修些什么课程?

I’m thinking of taking the course in modern American literature.我在考虑选修现代美国文学。

What field do you major in?你主修哪个方面?

I major in science.我主修自然科学。

What’s your major?你的主修科目是什么?

I take world history as my major.我以世界历史为我的主修专业。

What subject are you studying?你学的是什么专业?

I’m doing modern languages.我在学现代语言。

What did you specialize in?你主修什么?

In college I specialize in organic chemistry.在学院里我主修有机化学。

I expect to take the linguistic course.我将修语言学课程。

I’m an economics major.我是经济学专业的学生。

I’m going to Harvard University to do postgraduate work in medicine.

我打算去哈佛大学读医学研究生。

I’m taking economics and mathematics.我在攻读经济学和数学。

When we heat anything，It expands.当我们给物体加热它就膨胀。

This wire inside an electric lamp is not made of copper but it is made of tungsten.

电灯里面的细丝不是铜丝而是钨丝。Light travels very fast.It moves at 186，300 miles a second，that is 300，000 kilometers a second

光速很快，每秒可行十八万六千三百英里，即三十万公里。

A ray of light usually travels in a straight line;but sometimes it bends.It leaves the air and goes into the glass，then it bends.一束光线通常走直线，但有时也弯曲，当离开空气进入玻璃时，它就弯曲。

Hydrogen burns easily in oxygen or in air.氢气在氧气或空气中易燃。

The earth is one of the nine planets.地球是九大行星之一。

九大行星都自转，它们又都围着太阳按同一方向转动。

Why does the earth always move round the sun and not fly off into cold space?The sun’s gravitation gives the answer为什么地球一直围太阳转而脱离不到太空去呢?太阳的牵引力能解释这个问题。

A vacuum is a space with nothing in it.真空是指不包含任何东西的空间。

Aristotle said that heavy things fall faster than light things，but he was wrong.

亚里士多德说重的物体比轻的物体降落快，但他错了。

Some countries have large numbers of earthquakes.Japan is one of them.

有些国家地震频繁。日本是其中之一。

I’m very poor at physics, but Kate is good at it.我对物理一窍不通，但凯特很在行。

I don’t like electricity，but I’m interested in the law of universal gravitation.

我讨厌电学，但我对万有引力定律感兴趣。

Which is faster，sound or light?哪一个快，声还是光?

I think physics is the most important subject.我认为物理学是最重要的科目。