Nuclear radiation（核辐射）has a certain mystery, ...

Nuclear radiation（核辐射）has a certain mystery, partly because it cannot be detected（探测） by human senses. It can’t be seen or heard, or touched or tasted, even though it may be all around us. There are other things like that. For example, radio waves are all around but we can’t detect them or sense them without a radio receiver. Similarly, we can’t sense radioactivity without a radiation detector. But unlike common radio waves, nuclear radiation is not harmless to human beings and other living things.

At very high levels, radiation can kill an animal or human being outright by killing masses of cells in important organs. Even the lowest levels can do serious damage. There is no level of radiation that is completely safe. If the radiation does not hit anything important, the damage may not be serious. This is the case when only a few cells are hit, and when they are killed outright. Your body will replace the dead cells with healthy ones. But if the few cells are only damaged, and if they reproduce themselves, you may be in trouble. They reproduce themselves in an unusual way. They can grow into cancer. Sometimes this does not show up for many years.

This is another reason for some of the mystery about nuclear radiation. Serious damage can be done without the knowledge of the person at the time that damage has occurred. A person can be irradiated（放射治疗）and feel fine, then die of cancer five, ten, or twenty years later as a result. A child can be born weak or easy to get serious illness as a result of radiation absorbed by its grandparents.

1.According to the passage, the danger of nuclear power lies in __________.

2.Radiation can lead to serious trouble even at the lowest level __________.

3.Radiation can hurt us so much that it can ___________.

4.Which of the following can be best inferred from the passage?

5.What would be the best title of the text?

高一英语阅读理解中等难度题查看答案及解析

____ is certain, though, is that the mystery of Tutankhamun’s tomb has never been fully explained.

A. It                       B. What                     C This                   D As

高一英语单项填空简单题查看答案及解析

_____ is certain is ______ the mystery of Stonehenge has never been fully explained.

A．It, that                                B．What, what

C．It, what                               D．What, that

高一英语单项填空中等难度题查看答案及解析

We’ve heard about radiation from the damaged nuclear reactors in Japan reaching American shores. Experts say so far there is no reason to worry, and point out that we meet radiation every day. Where and how? NPR’s Renee Montagne posed that question to Peter Caracappa, a radiation safety officer and professor of nuclear engineering.

MONTAGNE: How many things emit radiation?

Dr CARACAPPA: Well, radiation and radioactive material is a part of nature. So everything that’s living has some amount of radiation coming from it—a very small amout. Plus there’s radiation in the ground and the air.

So the extremes are uranium in the soil to bananas?

Yes.

By the way, why do bananas have radiation?

Bananas have a lot of potassium(钾). And a small amount of potassium naturally is called potassium 40, which is radioactive

What’s the difference between radiation that’s harmful and not harmful?

Well, the term radiation can apply to a lot of different things. But the harmful radiation is ionizing(离子)radiation. It has enough energy that it can make chemical changes in material. We could get ionizing radiation from an X-ray, for example. It’s the kind of radiation that causes cancer.

The broader definition of radiation includes a lot of things that we call non-ionizing radiation. That includes everything like radio waves and visible light and your microwave.

So what then is the largest contributor of ionizing radiation?

For the natural sources of ionizing radiation, actually the biggest chunk of that tends to come from radon(氡), which is a radioactive material that is present in the air. It can become a concern when it builds up in low-lying areas of homes like basements.

Would it be fair to say that most people do not need to worry about the danger of being exposed to radiation?

I would say that the everyday exposure to radioation that we meet contributes an extremely tiny risk to our life or to our health compared to all of the other risks that we meet in our day-to-day life.

1.We can infer from the first paragraph that radiation is______.

2.The passage may be _______.

3.Whether radiation is harmful or not depends on______.

4.The purpose of writing this passage is to _______.

高一英语阅读理解困难题查看答案及解析

Nothing succeeds like confidence. When you are truly confident, it radiates (辐射) from you like sunlight, and attracts success to you like a magnet (磁铁). Besides, those who are self-confident can in turn inspire (encourage) confidence in others: their audience, their peers, their bosses, their customers, and their friends. And gaining the confidence of others is one of the key ways in which a self-confident person finds success.

So how can we build a sense of self-confidence and prepare ourselves on the way to success?

First, do what you believe to be right, even if others mock or criticize you for it. Believe in yourself and believe that you can do it in any situations, because if you believe you can, then you really will. The belief keeps you searching for answers, which means that pretty soon you will get them.

Second, govern your behavior based on what other people think. What’s more important, be willing to take risks and go the extra miles to achieve better results, in which case mistakes can not be avoided. Always be ready to admit your mistakes, and learn from them. Next, work hard to settle the problems in order to cover up your mistakes before anyone notices. Building self-confidence is readily achievable, as long as you have the focus and determination to carry things through. And what’s even better is that the things you’ll do to build self-confidence will also build success -- after all, your confidence will come from real, solid achievement. No one can take this away from you!

As you sow, so will you reap. With your perseverance (毅力) and improvement, you are getting closer to success. At this stage, wait for others to give congratulations and compliments on your achievements. “Thanks, I really worked hard on it. I’m pleased you recognize my efforts.” The congratulations and compliments from others will promote you to gain further success.

Self-confidence is extremely important in almost every aspect of our lives, and it is no wonder that so many people struggle to find it. Self-confidence really can be learned and built on. Besides, whether you’re working on your own self-confidence or building the confidence of people around you, it’s well worth the effort!

1.Those who are truly confident _______.

A．succeed without effort and hard work

B．encourage people around to become confident

C．appear more attractive and thus become successful

D．gain the confidence of others and feel successful

2.The underlined word “mock” (Paragraph 2) is closest in meaning to _______.

A．praise            B．imitate (模仿)      C．punish            D．laugh at

3.When others congratulate us on our achievements, we are supposed to _______.

A．praise them in return

B．gain further improvement

C．politely accept the compliments

D．expect them to congratulate you again

4.Which of the following proverbs (sayings) best goes with Paragraph 4?

A．Look before your leap.

B．It is no use crying over spilt milk.

C．Genius is 1% inspiration and 99% perspiration.

D．Learn from past mistakes and avoid future ones.

5.The purpose of the text is to _______.

A．tell people how to become successful

B．convince people to do what they believe to be right

C．encourage people to build confidence and achieve success

D．criticize people who lack confidence and thus fail in their career

高一英语阅读理解中等难度题查看答案及解析

Following the nuclear at the Fukushima (福岛) nuclear power station in Japan, Germany has decided to abandon the use of nuclear energy sooner than it had planned.

Germany was planning to cut its use of nuclear power slowly over 25 years. But now, the government has speeded up its program. Germany’s government has said that seven of its 17 nuclear reactors (反应堆) will stop working for three months for safety checks.

Nuclear power has been very unpopular in Germany since the Chernobyl (切尔诺贝利) nuclear reactor disaster in Ukraine (乌克兰) in 1986. Since then, the country has been working on developing new resources of energy.

The plan to give up nuclear power will cost the country at least 150 billion euros (1.4 trillion yuan)) in investment. Experts say this will likely lead to a rise in electricity prices.

Some experts think Germany is setting a good example for countries such as the US to follow. Germany now gets 23 percent of its energy from nuclear power –about as much as the US.

However, France, which relies on nuclear energy for more than 70 percent of its power, shows no sign of changing its policy.

1.

We can most probably read the article _______.

A. in a newspaper                        B. in a pamphlet(小册子)

C. in an advertisement                    D. in a textbook

2.

The most appropriate heading for this article is _______.

A. Germany to develop its new resources of energy

B. Nuclear power no longer popular in Germany

C. Germany to have safety checks for some nuclear reactors

D. Germany to end its nuclear energy program

3.

According to the article, all of the following statements are true EXCEPT______.

A. In both the US and Germany, approximately a quarter of their energy are from nuclear power now.

B. The explosion of some Fukushima nuclear reactors has quickened Germany’s      pace to abandon nuclear energy.

C. France, which relies on nuclear energy for more than 70 percent of its power, will follow Germany and cut its use of it at any cost.

D. The Chernobyl nuclear disaster seemingly cast a huge shadow over the Germans, making them increasingly suspicious of the safety of nuclear energy.

高一英语阅读理解简单题查看答案及解析

Getting older is a natural part of life. Changes as you get older are usually gradual. Certain physical changes are common. How fast your body can burn calories slows over time, which means that your body needs less food energy than before.

How much and how well you sleep will likely change. Most people start needing reading glasses around forty, and many have some hearing loss later in life. Starting in your fifties, bone aging increase. How you feel as you get older depends on many things, including what health problems run in your family and the choices you make.

If your family members have diseases or chronic (慢性的) health problems like high blood pressure, then you may have a greater chance of having those problems yourself. But it doesn’t mean you will definitely have the same problems. Actually, the lifestyle choices you make can help reduce your chances of getting illness that run in your family. And even if you do get a family illness, choosing to be physically active, to eat healthy foods, and to learn how to deal with stress can keep the illness from destroying your ability to enjoy your golden years.

What do you need to do to feel your best as you age? One of the most important things you can do for your health at any age is to be physically active. Physical activity keeps your body strong, and it helps with how you feel. People who stay active are less likely to get depressed.

Your mental and emotional health is also important. Protect or improve your emotional health by staying in touch with friends, family, and the community. People who feel connected to others are more likely to feel happy than those who do not.

1.When people get older, they will __________.

A. need some help　　 B. look back to their past often

C. consume(消耗)more calories　　 D. go through some physical problems.

2.Which of the following can NOT mostly affect old people’s health?

A. Their family illness.　　 B. The money they have..

C. Their eating habits.　　 D. Their relationship with others

3.The underlined phrase “golden years” in paragraph 3 refer to a person’s ________.

A. future　　 B. holidays

C. later life　　 D. leisure(空闲的) time

4.How can old people avoid loneliness according to the text?

A. To make new friends.　　 B. To have enough social connections.

C. To be physically active.　　 D. To live with their family members.

高一英语阅读理解中等难度题查看答案及解析

Not very long ago, a special family system(体系) existed in certain parts of South India. In the system, the actual head of a family unit was the mother’s eldest brother, though the mother also had an important position in the family. In families of this kind, a husband was actually no more than a visitor. He did not live with his wife, but with his own mother, brothers and sisters in another house. He saw his sons and daughters sometimes, but the man who actually fed and cared for them and acted as their father was their uncle--- their mother’s brother.

But this system, in which brothers and sisters take the place of the father, no longer exists in South India except in a few villages. Economic(经济的) changes have had far- reaching effect on family life. Family life began to change when men went out to work in factories and offices instead of working with their mothers, brothers, and sisters on the land. When a man went out to work, he had money of his own and could buy his own land and build his own family, instead of depending on his mother and his brothers. He wanted to be independent(独立的). This is an example of the way in which economic relations can have an effect on family relationships.

1. The best title of this passage is ______.

2. Who had the actual control of a family in South India not long ago?

3. In this system, the husband lived together with______.

4.Now in South India there are__ of this system in which a husband has no control of his family.

高一英语阅读理解困难题查看答案及解析

Although problems are a part of our lives, it certainly doesn’t mean that we let them rule our lives forever. One day or the other, you’ll have to stand up and say – problem, I don’t want you in my life.

　　 1.　 Problems with friends, parents, girlfriends, husbands, and children – the list goes on. Apart from these, the inner conflicts within ourselves work, too. These keep adding to our problems. Problems come in different shapes and colors and feelings.

But good news is that all problems can be dealt with. Now read on to know how to solve your problems.

Talk, it really helps. What most of us think is that our problem can be understood only by us and that no talking is going to help. ________________2.________________________Talking helps you move on and let go.

Write your problems. ________________3.________________________When you write down your problems, you are setting free all the tension from your system. You can try throwing away the paper on which you wrote your problems. By doing this, imagine yourself throwing away the problems from your life.

Don’t lose faith and hope. No matter what you lose in life, don’t lose faith and hope. Even if you lose all your money, family… you should still have faith. 　　 4.　　

Your problems aren’t the worst. No matter what problem you get in life, there’re another one million people whose problems are huger than yours. 　　 5.　　 Your problems might just seem big and worse, but in reality they can be removed.

Go about and solve your problems because every problem, however big or small, always has a way out.

A. But the truth is that when you talk about it, you’re setting free the negative energies that have been gathering within you.　　

B. When we have a problem, a pressing, critical, urgent, life-threatening problem, how do we try and solve it?

C. Tell yourself: when they can deal with them, why can’t I?

D. Of course, we’ve been fighting troubles ever since we were born.

E. We can often overcome the problem and achieve the goal by making a direct attack.

F. Having a personal diary can also be of huge help if you don’t want a real person to talk with.

G. With faith and hope, you can rebuild everything that you lose.

高一英语信息匹配中等难度题查看答案及解析

Although the mysterious castle has disappeared for hundreds of years, it is believed that the _____ of the castle can still be seen at the top of the mountain.

A. remains　　 B. paintings

C. processes　　 D. institutes

高一英语单项填空中等难度题查看答案及解析