Many animals use their colours to themselves ...

Many animals use their colours to 　　 themselves from 　　 .

A. prevent; eating　　 B. protect; eating

C. protect; being eaten　　 D. keep; eating

高二英语单项填空中等难度题查看答案及解析

Some insects________the colour of their surroundings to protect themselves.

A. take in　　　　 B. take off

C. take on　　 　　 D. take out

高二英语单项填空中等难度题查看答案及解析

Some insects _______ the colour of their surroundings to protect themselves.

A. take in  B. take off C. take on  D. take out

高二英语单项填空中等难度题查看答案及解析

Some insects ______ the colour of their surroundings to protect themselves.

A．take in            B．take off           C．take on           D．take up

高二英语单项填空中等难度题查看答案及解析

Today, many people use plants from other places to design their yards. Well, do they have any influence on animals living nearby? As we know, plants supply food for things like insects and plant-eating animals. In turn, birds and meat-eating animals feed on these insects and plant-eating animals. It is easy to see how important plants are.

Although foreign plants may look beautiful, they can cause problems when there are too many of them. I live in Virginia, USA, and sometimes see a plant—commonly known as Kudzu—that seems to cover everything in the area, even climbing over whole trees and houses.

Kudzu is an unbelievable plant since it grows very fast. It was first brought to the United States from south-east Asia around the 1870’s as a crop that farmers could grow. However, Kudzu quickly came to be considered harmful throughout the southern United States.

Since Kudzu grows fast in many different environments, it can completely cover areas of land quickly. The plant is also not eaten by any insects or birds in the United States so it can grow unchecked. Kudzu can cover trees, bushes, and even houses. It costs the United States 500 million dollars a year to just keep Kudzu from growing too fast. The plant is a perfect example of what scientists call an invasive (侵略性的) species, which grows more quickly than other native plants.

All foreign plants have the possibility to spread quickly. Not only are they costly, but planting them in gardens actually takes away food from insects. If everyone filled their garden with plants native to where they live, many lovely butterflies and other native creatures would be attracted to their backyards! So, take a look out of your window — how does your garden grow?

1.We can learn from the text that Kudzu in Virginia ________.

A. is very popular

B. is difficult to grow

C. can cause big trouble

D. can make air cleaner

2.Which of the following is TRUE of Kudzu?

A. It served as food at first in America.

B. It came to America in the early 19th century.

C. It grows fast in Asia, but slowly in America.

D. It is often eaten by insects or birds in America.

3.How does the author sound when telling of these foreign plants?

A. Sad.                B. Worried.                C. Proud.                D. Excited.

4.What does the author mainly discuss in the text?

A. Everyone should learn to love nature.

B. It is a hard job to grow plants in yards.

C. Gardening has become a serious hobby.

D. It is important to say no to foreign plants.

高二英语阅读理解中等难度题查看答案及解析

Teenagers ________ their health because they often expose themselves to so many electric products.

A. have damaged                 B. damage       C. are damaging          D. will damage

高二英语单项填空简单题查看答案及解析

People tend to become more personal and hide less of themselves when using email. Researchers from Open University in Britain have found in a recent study that there are good reasons for this.

The team of researchers asked 83 pairs of students, all strangers to each other, to solve a problem. They had to discuss this question: If only five people in the world could be saved from a world disaster, who should they be? The pairs of students had to talk over the problem either face to face or by computers. Dr. Johnson said, “They told their partners four times as much about themselves when they talked over the Internet as when they talked face to face. When the computers were fitted with cameras so that students could see each other, this limited the personal side of the conversation.”

Generally the information was not extremely personal. It was mainly about things such as where they went to school, or where they used to live. But some students discussed their love stories, and personal childhood experiences.

Dr Johnson believes that emailing encourages people to focus on themselves. And when they do this, they become more open, especially if there are no cameras. “If you cannot see the other person, it becomes easier to talk about yourself. This is because you are not thinking what the other person is thinking of you. So emailing has become the modern way of talking,” said Dr. Johnson. However, this style of talking is not entirely new. “In the 19th century people started to use the ‘telegraph’ to communicate. Now the same kind of thing has happened and people ended up speaking more freely.”

Dr. Johnson thinks that emailers need to know about these effects of emailing, especially when they start work in a company. “ If you don’t know about them, you could find yourself saying more about yourself than you wanted to.”

1.The subject discussed in this passage is _______.

A. how people do research studies

B. how people open up when emailing

C. how to communicate at work

D. how to discuss and solve a problem

2.The reason that some couples talked freely about themselves is that _______.

A. they didn’t talk about very personal things

B. they couldn’t see each other

C. the cameras on the computers were turned on

D. they had to discuss a question

3.In the writer’s opinion, one should ______.

A. focus on oneself when emailing

B. talk more freely in emails than usual

C. consider how one uses email at work

D. discuss any subject that one wants to

高二英语阅读理解困难题查看答案及解析

Have you wondered why different animals or pests have their particular colours? Colours in them seem to be used mainly to protect themselves.

Birds, especially seagulls are very fond of locusts (蝗虫), but birds can’t easily catch locusts because locusts change their colours together with the change of the colour of crops. When crops are green, locusts look green. But when crops are ripe, locusts take on exactly the same brown colour as crops have. Some other pests with different colours from plants are usually easily found and eaten by their enemies. So they have to hide themselves in terror for lives and appear only at night.

If you study the animal life in any part of the world, you will find the main use of colouring is to protect them. Bears, wolves and other beasts move quietly through forests. They are usually invisible(can’t be seen) to the eyes of hunters, because they have the colour much like the bark（树皮）of trees.

An even more strange act remains to be noticed. A kind of fish living in seas can send out a kind of very black liquid when it faces danger. While the liquid is over, its enemies cannot find it, and it quickly swims away. Thus, it has existed up to now though it is not powerful at all.

1.This passage mainly talks about _______.

A.the change of colour in locusts

B.animals or pests can dye（染色）themselves different colours

C.how a certain sea fish protects itself

D.the protective colour of animals and pests

2.Locusts are pests but they aren’t easily wiped out by their enemies because _______.

A.they change colors with the crops

B.they are dangerous to their enemies

C.they fly very fast

D.they are powerful enough

3.The pests that have different colours from plants usually appear at night because _______.

A.their enemies can easily find them and eat them

B.they have the habit of coming out in darkness

C.it’s easy for them to destroy plants in darkness

D.birds take their rests when night comes

4.A certain fish living in seas has lived through millions of year because _______.

A.it is the most powerful in the sea

B.no other fishes can swim as fast as it can

C.it can send out a kind of liquid which makes its enemies unable to find it

D.the liquid it sends out can kill its enemies

高二英语阅读理解中等难度题查看答案及解析

．

Have you ever wondered why different animals or pests have their particular colours? Colours in them seem to be used mainly to protect themselves．

Birds, especially seagulls, are very fond of locusts, but birds cannot easily catch locusts because locusts change their colours together with the change of the colour of crops．When crops are green, locusts look green．But when crops are ripe, locusts take on exactly the same brown colour as crops have．Some other pests with different colours from plants are usually easily found and eaten by their enemies．So they have to hide themselves in terror for lives and appear only at night．

If you study the animal life in any part of the world, you will find the main use of colouring is to protect themselves．Bears, wolves and other beasts move quietly through forests．They are usually invisible to the eyes of hunters, because they have the colour much like the barks of trees．

An even more strange act remains to be noticed．A kind of fish living in seas can send out a kind of very black liquid when it faces danger．While the liquid spreads over, its enemies cannot find it, and it immediately swims away．Thus, it has existed up to now though it is not powerful at all．

1.This passage mainly talks about ________．

A．the change of colour in locusts

B．the protective coloration of animals and pests

C．how a certain sea fish protects itself

D．animals or pests can dye themselves different colours

2.Locusts are ________ but they are not easily wiped out by their enemies because ________．

A．animals; they are powerful enough

B．beasts; they are dangerous to their enemies

C．pests; they take on the same colours as crops

D．birds; they fly extraordinarily fast

3.The pests that have different colours from plants usually appear at night because ________．

A．their enemies can easily find them and eat them

B．they have the habit of coming out in darkness

C．it’s easy for them to destroy plants in darkness

D．birds take their rest when night comes

4.Bears and wolves have the same colour as barks of trees because ________．

A．they fear other beasts

B．they like brown or grey colours

C．they enjoy walking through forests quietly

D．the colours help prevent themselves from being noticed

高二英语阅读理解中等难度题查看答案及解析

ABORIGINAL is a term used to describe the people and animals that lived in a place from the earliest known times or before Europeans arrived. Examples are the Maori in New Zealand, the Aborigines in Australia and the Indians in America. They all share the fact that they were pushed off their land by European settlers.

Maori

The Maori were the first people to go to New Zealand, about 1,000 years ago. They came from the islands of Polynesia in the Pacific. They brought dogs, rats and plants with them and settled mainly on the Northern Island. In 1769, Captain James Cook from Britain took possession of the Island and from that time British people started to settle. The Maori signed an agreement on land rights with these settlers, but in later years there were arguments and battles between them.

Aborigines

The native people of Australia came from somewhere in Asia more than 40,000 years ago. They lived by hunting and gathering. Their contact with British settlers began in 1788. By the 1940s almost all of them were mixed into Australian society as low-paid workers. Their rights were limited. In 1976 and 1993 the Australian Government passed laws that returned some land to the Aborigines and recognized their property rights.

American Indians

Long before the Europeans came to America in the 16th and 17th century, the American Indians, or Native Americans, lived there. It is believed that they came from Asia. Christopher Columbus mistook the land for India and so called the people there Indians. The white settlers and American Indians lived in peace at the beginning, but conflicts finally arose and led to the Indian Wars (1866-1890). After the wars, the Indians were driven to the west of the country. Not until 1924 did they gain the right to vote.

1.The similarity among Maoris, Aborigines and American Indians is that _________.

A．they lost their vote right after European settlers’ arrival

B．they lost their land after European settlers’ arrival

C．they were driven out of their country after European settlers’ arrival

D．they were not treated as citizens until recently

2.Before European settlers arrived, we can infer that the Aboriginals had lived _________ life.

A．a miserable        B．a bitter           C．a peaceful         D．a troublesome

3.Which of the following was first interrupted by the Europeans?

A．Maoris.           B．Aborigines.        C．American Indians.   D．Not mentioned.

4.The passage mainly tells us _______.

A．the war between aboriginal people and white settlers

B．the history of Maoris, Aborigines and American Indians

C．the present unfair treatment to aboriginal people of the world

D．European settlers were the enemy of all aboriginal people

高二英语阅读理解中等难度题查看答案及解析