As almost everyone knows, 1.(become) extinct ...

As almost everyone knows, 1.(become) extinct is to be gone forever. Natural extinction happens when a species declines in numbers gradually. Even before man's arrival on Earth, some species had died out quite 2.(natural).

The ease of the dinosaurs is3.most well-known example of natural extinction.4.(they) disappearance is a natural one and new species of animals evolve (进化）to replace them.

The rate of extinction 5.(speed) up unnaturally over the last 400 years.6.(rise) sharply since 1900. This increase in the rate of extinction is directly related 　　 7.the increase in the human population over the same period of time. Vast numbers of humans have caused great damage to the planet, as humans have taken over a great many wild 　　 8.(habitat), forcing animals and plants into smaller and9.(small) areas, until some of them have become extinct. We have also polluted our planet.10.makes it unfit for wildlife. These causes of extinction are known as indirect destruction.

高二英语短文填空中等难度题查看答案及解析

As we all know, new technology is being ________ almost every industrial process at present.

高二英语单项填空简单题查看答案及解析

What we all know is that new technology is being ________to almost every industrial process.

A．applied                                          B．attempted

C．acquired                                  D．arranged

高二英语单项填空中等难度题查看答案及解析

What we all know is that new technology is being ________to almost every industrial process.

A．applied                               B．attempted

C．acquired                              D．arranged

高二英语单项填空中等难度题查看答案及解析

Expressions about water are almost as common as water itself．The expression to be in hot water is a very old expression．Hot water was used five hundred years ago to mean being in trouble．One story says it got that meaning from the custom of throwing extremely hot water down on enemies attacking a castle．

That no longer happens．But we still get into hot water．When we are in hot water, we are in trouble．It can be any kind of trouble-- serious or not so serious．A person who breaks a law can be in hot water with the police．A young boy can be in hot water with his mother if he walks in the house with dirty shoes．

Being in deep water is almost as the same as being in hot water．When you are in deep water, you are in a difficult position．

To keep your head above water is a colorful expression that means staying out of debt．A company seeks to keep its head above water during economic hard times．A man who loses his job tries to keep his head above water until he finds a new job．

Water over the dam is another expression about a past event．It is something that is finished．It can’t be changed The expression comes from the idea that water that has flowed over a dam can’t be brought back again．

Another common expression, "to hold water," is about the strength or weakness of an idea or opinion that you may be arguing about.  It probably comes from a way of testing the condition of a container.  If it can hold water, it is strong and has no holes in it. If your agrument can hold water, it is strong and does not have any holes.  If it does not hold water, then it is weak and not worth debating.

"Throwing cold water" also is an expression that deals with ideas or proposals. It means to not like an idea. For example, you want to buy a new car because the old one has some problems. But your wife "throws cold water" on the idea, because she says a new car costs too much.

1.If Robert says he is in deep water, we may guess________.

A．he is swimming under the water            B．he is tired of changing shoes

C．he nearly breaks a law.                         D．he faces a difficult choice

2.What can you say to your friend, Jane, who is troubled by a mistake she has made.

A．Keep your head above water                 B．Throw cold water

C．It is water over the dame                      D．It can hold water

3.If your argument doesn’t hold water, then it is________.

A．weak                  B．convincing           C．logical                 D．disappointing

4.The passage explains the origins of the following expression EXCEPT “________”.

A．to be in hot water                                B．to keep your head above water

C．water over the dame                            D．to hold water

5.Which of the following is the most probable title for this passage?

A．Water diving into the sea of terms          B．Water the most natural resource

C．About expressions                               D．About water

高二英语阅读理解中等难度题查看答案及解析

词汇训练：.用适当的词填空（共10小题，每题1分，满分10分）

As everyone knows, the skin is 1. （必不可少的）to us. Our skins can sometimes2.  (burn) due to our 3.  (粗心). Therefore, first aid shows its importance in the4.（治疗） of burns. Generally speaking, burns, 5.  are caused by hot liquids, fire, radiation and so on, can be divided into three types－first degree, second degree and third degree   6. (depend) on the 7.  (受伤的) layers of the skin. To minor burns, cool water proves to be helpful in  8.（stop）the burning process and preventing or reducing pains. But 9. severe burns, get the 10. to the doctor immediately.

高二英语单词拼写简单题查看答案及解析

In today's world, almost everyone knows that air pollution（污染）and water pollution are harmful to people's health. However, not all the persons know that noise is also a kind of pollution, and that is harmful to human health, too.

People who work and live under noisy conditions usually become deaf（聋）. Today, however, scientists believe that 10 percent of workers in Britain are being deafened by the noise where they work. Many of the workers who print newspapers and books, and who weave（织）cloth become deaf. Quite a few people living near airports also become deaf. Recently it was discovered that many teenagers（几十岁的人）in America could hear no better than 65-year-old persons, for these young people like to listen to pop music and most of pop music is a kind of noise. Besides, noise produced by jet planes or machines will make people's life difficult and unpleasant, or even make people ill or even drive them mad.

It is said that a continuous noise of over 85 decibels（分贝）can make people deaf. Now The governments in many countries have made laws to control noise and make it less than 85 decibels. In China, the government is trying to solve not only air and water pollution problems but also noise pollution problems.

1.The text is mainly about    ____________ .

2.10 percent of the workers in Britain are being deafened because  _________.

3.About noise produced by jet planes or machines, which is wrong?

4. According to the text, a continuous noise of   _____  decibels can make people deaf.

5.The government of China is trying to solve    _______________ .

高二英语阅读理解中等难度题查看答案及解析

As we all know, the father __________ for the spoilt child.

A. is to blame　　　　 B. is to be blamed

C. blamed　　　　 　　 D. blames on

高二英语单项填空中等难度题查看答案及解析

Don’t you know that the famous university is as a matter of fact ____ used to be a church?

A. where        B. what         C. which          D. one

高二英语单项填空困难题查看答案及解析

Don’t you know that the famous university is as a matter of fact _________used to be a church?

高二英语单项填空简单题查看答案及解析