If we observe carefully, we van find that mos...

If we observe carefully, we van find that most of the flowers in nature are red, orange and yellow. If we have seen a black flower, it’s a chance in million. People have made a census(普查)to colours of more than four thousand kinds of flowers and discovered that only eight of them are black. Why?

As we know, sunlight is formed by seven different kinds of coloured light. The wave length of each light changes, so the quantity of heat in each light changes, too. Flowers, especially their petals(花瓣), are very delicate(纤弱) and prone(易于) to the harm caused by high temperature. Black flowers can take in all the light waves, which cause the flowers to dry up in a high temperature. So black flowers can rarely survive sunlight. But red flowers, orange flowers and yellow flowers can protect themselves from sunlight by reflecting the red light, orange light and yellow light, each of which has a large quantity of heat.

That is why red, orange and yellow flowers are very common in nature while black flowers are so rare.

1.We can hardly find black flowers because  _____.

2. Sunlight is formed by _____.

3.The red, orange or yellow light contains _____.

4.“It is a chance in a million” means_____________

高二英语阅读理解中等难度题查看答案及解析

Most of the flowers in nature are red, orange and yellow. If we have seen a black flower, it’s a chance in million. People have made a census ( 普查 ) to colors of more than four thousand kinds of flowers and discovered that only eight of them are black. As we know, sunlight is formed by seven different colored lights. The wave length of each light is different, so the quantity of heat in each light is also different. Flowers, especially their petals ( 花瓣 ) , are easy to be harmed by high temperature. Black flowers can take in all the light waves which cause the flowers to dry up in a high temperature. So black flowers can rarely survive sunlight. But red flowers, orange flowers and yellow flowers can protect themselves from sunlight by reflecting the red light, orange light and yellow light, each of which has a large quantity of heat.

1.It is _________ to see a black flower.

2.The passage tells us that ________________.

3.Which of the following ideas is NOT true?

高二英语阅读理解困难题查看答案及解析

________the newspaper carefully ,and we’ll find different types of articles on the pages

A．Read                              B．Reading                          C．To read                          D．Having read

高二英语单项填空中等难度题查看答案及解析

We all know that, _______, the situation will get worse.

A. not if dealt carefully with           B. if not carefully dealt with

C. if dealt not carefully with           D. not if carefully dealt with

高二英语单项填空中等难度题查看答案及解析

One of the most striking findings of a recent questionnaire in the UK is that of the people interviewed, one in two believes that it is becoming more difficult to meet someone to start a family with.

Why are many people finding it increasingly difficult to start and keep close relationships? Does modern life really make it harder to fall in love? Or are we making it harder for ourselves?

It is certainly the case today that nowadays couples benefit in different ways from relationships. Women no longer rely upon partners for economic security or status. A man doesn’t expect his wife to be in sole (唯一的) charge of running his household and raising his children.

But perhaps the knowledge that we can live perfectly well without a partnership means that it takes much more to persuade people to abandon their independence.

In theory, finding a partner should be much simpler these days. Only a few generations ago，your choice of soul mate was limited by geography, social convention and family tradition. Although it was never clear, many marriages were essentially arranged. Now those barriers have been broken down. You can approach a builder or a brain surgeon in any bar in any city on any given evening. When the world is your oyster（牡蛎）, you surely have a better chance of finding a pearl.

But it seems that the traditions have been replaced by an even tighter restriction：the limitation of choice. The expectations of partners are made greater to an unmanageable degree：good looks, impressive salary, kind to grandmother, and so on. There is no room for error in the first impression.

We think that a relationship can be perfect. If it isn’t，it is intended to be thrown away. We work to protect ourselves against future heartache and don’t put in the hard emotional labor needed to build a strong relationship. Twelve-hour work at the office makes relaxed after-hours dating(约会) difficult. The cost of housing and child-raising creates pressure to have a stable(稳定的) income and career before a life partnership.

1. Nowadays, in a family, _________.

A. men begin to depend on women    　　　　　

B. couples share the burdens

C. men are responsible for housework　　　　

D. couples can’t get along together

2. People don’t want to give up their independence because______.

A. they can’t bear arranged marriages

B. they want to have more choices

C. they don’t want to follow traditions

D. they think they can live happily alone

3. People don’t bother to date because_______.

A. it requires luck to build a strong relationship

B. it takes them too much energy to work

C. it needs faith to have a life partnership

D. it causes mental problems to find a life partner

4. Which of the following can best describe the main idea of the passage?

A. The expectations of partners and financial pressure may prevent a relationship.

B. People should spend more money on marriage today.

C. Independence is much more important than love.

D. Even a perfect marriage can be given up for the sake of independence.

高二英语阅读理解中等难度题查看答案及解析

I haven’t read ____ of the articles carefully, but I find that there is a striking similarity between them.

A. each                               B. either                    C. any                         D. both

高二英语单项填空中等难度题查看答案及解析

What _______ the doctors most was that they could not find the cause of the strange disease.

A. enjoyed　　　 B. puzzled

C. charged　　　 D. promised

高二英语单项填空中等难度题查看答案及解析

Fear and its companion pain are two of the most useful things that men and animals possess, if they are properly used. If fire did not hurt when it burnt, children would play with it until their hands were burnt away. Similarly, if pain existed but fear didn’t, a child would burn himself or herself again and again, because fear would not warn himself or herself to keep away from the fire that had burnt himself or herself before. A really fearless soldier—and some do exist is not a good soldier because he is soon killed; and a dead soldier is of no use to his army. Fear and pain are therefore two guards without which men and animals might soon die out.

In our first sentence we suggested that fear should be properly used. If, for example, you never go out of your house because of the danger of being knocked down and killed in the street by a car, you are letting fear rule you too much. Even in your house you are not absolutely safe: an aeroplane may crash on your house, or ants may eat away some of the beams in your roof so that the latter falls on you, or you may get cancer!

The important thing is not to let fear rule you, but instead to use fear as your servant and guide. Fear will warn you of dangers; then you have to decide what action to take.

In many cases, you can take quick and successful action to avoid the danger. For example, you see a car coming straight towards you. Fear warns you, you jump out of the way, and all is well.

In some cases, however, you decide that there is nothing that you can do to avoid the danger. For example, you can’t prevent an aeroplane crashing onto your house. In this case, fear has given you its warning; you have examined it and decided on your course of action, so fear of this particular danger is no longer of any use to you, and you have to try to overcome it.

1.Children would play with fire until their hands were burnt away if _________.

A. they were given no warning beforehand

B. they had never burnt themselves

C. they had no sense of pain     D. they were fearful of the fire

2. A really fearless soldier _____________.

A. is of great use to the army    B. is not a real soldier

C. is nothing but a dead soldier  D. easily gets killed in a battle

3.People sometimes succeed in timely avoiding the danger because _________.

A. they have gained experience   B. they jump out of the way in time

C. they are calm in the face of danger

D. they are warned of the danger by fear and take quick action

4.What's the writer's suggestion when the danger can't be avoided?

A. You have to try to overcome it.   B. Fear can really help you to run away.

C. Fear always helps you stay safe.  D. Fear is of great use to you.

高二英语阅读理解中等难度题查看答案及解析

Fear and its companion pain are two of the most useful things that men and animals possess, if they are properly used. If fire did not hurt when it burnt, children would play with it until their hands were burnt away. Similarly, if pain existed but fear didn’t, a child would burn himself or herself again and again, because fear would not warn himself or herself to keep away from the fire that had burnt himself or herself before. A really fearless soldier—and some do exist, is not a good soldier because he is soon killed; and a dead soldier is of no use to his army. Fear and pain are therefore two guards without which men and animals might soon die out.

In our first sentence we suggested that fear should be properly used. If, for example, you never go out of your house because of the danger of being knocked down and killed in the street by a car, you are letting fear rule you too much. Even in your house you are not absolutely safe: an aeroplane may crash on your house, or ants may eat away some of the beams in your roof so that the latter falls on you, or you may get cancer!

The important thing is not to let fear rule you, but instead to use fear as your servant and guide. Fear will warn you of dangers; then you have to decide what action to take.

In many cases, you can take quick and successful action to avoid the danger. For example, you see a car coming straight towards you. Fear warns you, you jump out of the way, and all is well.

In some cases, however, you decide that there is nothing that you can do to avoid the danger. For example, you can’t prevent an aeroplane crashing onto your house. In this case, fear has given you its warning; you have examined it and decided on your course of action, so fear of this particular danger is no longer of any use to you, and you have to try to overcome it.

1.Children would play with fire until their hands were burnt away if _________.

A．they were given no warning beforehand

B．they had never burnt themselves

C．they had no sense of pain

D．they were fearful of the fire

2.A really fearless soldier _____________.

A．is of great use to the army

B．is not a real soldier

C．is nothing but a dead soldier

D．easily gets killed in a battle

3.People sometimes succeed in timely avoiding the danger because _________.

A．they have gained experience

B．they jump out of the way in time

C．they are calm in the face of danger

D．they are warned of the danger by fear and take quick action

4.What's the writer's suggestion when the danger can't be avoided?

A．You have to try to overcome it．

B．Fear can really help you to run away.

C．Fear always helps you stay safe．

D．Fear is of great use to you.

高二英语阅读理解中等难度题查看答案及解析

Fear and its companion pain are two of the most useful things that men and animals possess, if they are properly used. If fire did not hurt when it burnt, children would play with it until their hands were burnt away. Similarly, if pain existed but fear didn’t, a child would burn himself or herself again and again, because fear would not warn himself or herself to keep away from the fire that had burnt himself or herself before. A really fearless soldier—and some do exist, is not a good soldier because he is soon killed; and a dead soldier is of no use to his army. Fear and pain are therefore two guards without which men and animals might soon die out.

In our first sentence we suggested that fear should be properly used. If, for example, you never go out of your house because of the danger of being knocked down and killed in the street by a car, you are letting fear rule you too much. Even in your house you are not absolutely safe: an aeroplane may crash on your house, or ants may eat away some of the beams in your roof so that the latter falls on you, or you may get cancer!

The important thing is not to let fear rule you, but instead to use fear as your servant and guide. Fear will warn you of dangers; then you have to decide what action to take.

In many cases, you can take quick and successful action to avoid the danger. For example, you see a car coming straight towards you. Fear warns you, you jump out of the way, and all is well.

In some cases, however, you decide that there is nothing that you can do to avoid the danger. For example, you can’t prevent an aeroplane crashing onto your house. In this case, fear has given you its warning; you have examined it and decided on your course of action, so fear of this particular danger is no longer of any use to you, and you have to try to overcome it.

1.Children would play with fire until their hands were burnt away if _________.

A. they were given no warning beforehand

B. they had never burnt themselves

C. they had no sense of pain

D. they were fearful of the fire

2.A really fearless soldier _____________.

A. is of great use to the army

B. is not a real soldier

C. is nothing but a dead soldier

D. easily gets killed in a battle

3.People sometimes succeed in timely avoiding the danger because _________.

A. they have gained experience

B. they jump out of the way in time

C. they are calm in the face of danger

D. they are warned of the danger by fear and take quick action

4.What's the writer's suggestion when the danger can't be avoided?

A. You have to try to overcome it.

B. Fear can really help you to run away.

C. Fear always helps you stay safe.

D. Fear is of great use to you.

高二英语阅读理解中等难度题查看答案及解析