Not only the driver but also the passers-by _...

Not only the driver but also the passers-by _________ danger because of the mechanical failure.

A. were exposed to　　 B. was exposed in

C. was exposed to　　 D. were exposed in

高二英语单项填空困难题查看答案及解析

Space is a dangerous place, not only because of meteors (流星 ) but also because of rays from the sun and other stars. The atmosphere again acts as our protective blanket on earth. Light gets through, and this is essential for plants to make the food which we eat. Heat, too, makes our environment endurable（可忍受的）. Various kinds of rays come through the air from outer space, but enormous quantities of radiation（辐射） from the sun are screened off. As soon as men leave the atmosphere they are exposed to this radiation but their spacesuits or the walls of their spacecraft, if they are inside, do prevent a lot of radiation damage.

Radiation is the greatest known danger to explorers in space. The unit of radiation is called "rem". Scientists have reason to think that a man can put up with far more radiation than 0.1 rem without being damaged; the figure of 60 rems has been agreed on. The trouble is that it is extremely difficult to be sure about radiation damage - a person may feel perfectly well, but the cells of his or her sex organs may be damaged, and this will no be discovered until the birth of abnormal children or even grandchildren.

Missions of the Apollo flights have had to cross belts of high amount of rems. So far, no dangerous amounts of radiation have been reported, but the Apollo missions have been quite short. We simply do not know yet how men are going to get on when they spend weeks and months outside the protection of the atmosphere, working in a space laboratory. Drugs might help to decrease the damage done by radiation, but no really effective ones have been found so far.

1. According to the first paragraph, the atmosphere is essential to man in that ____.

A. it protects him against the harmful rays from space

B. it provides sufficient light for plant growth

C. it supplies the heat necessary for human survival

D. it screens off the falling meteors

2. We know from the passage that ____.

A. exposure to even tiny amounts of radiation is deadly

B. the effect of exposure to radiation is slow in coming

C. radiation is avoidable in space exploration

D. astronauts in spacesuits needn't worry about radiation damage

3. The harm radiation has done to the Apollo crew members ____

A. is significant            B. seems overestimated

C. is enormous             D. remains unknown

4. It can be inferred from the passage that ____.

A. the Apollo mission was very successful

B. protection from space radiation is no easy job

C. astronauts will have deformed children or grandchildren

D. radiation is not a threat to well-protected space explorers

45. The best title for this passage would be ____.

A. The Atmosphere and Our Environment   B. Research on Radiation

C. Effects of Space Radiation             D. Importance of Protection Against Radiation

高二英语阅读理解简单题查看答案及解析

Space is a dangerous place, not only because of meteors (流星) but also because of rays from the sun and other stars. The atmosphere again acts as our protective blanket on earth. Light gets through, and this is necessary for plants to make the food that we eat. Heat, too, makes our environment endurable. Various kinds of rays come through the air from outer space, but enormous quantities of radiation from the sun are screened off. As soon as men leave the atmosphere they are exposed to this radiation but their spacesuits or the walls of their spacecraft, if they are inside, do prevent a lot of radiation damage.

Radiation is the greatest known danger to explorers in space, The unit of radiation is called “rem” Scientists have reason to think that a man can put up with far more radiation than 0.1rem without being damaged; the figure of 60 rems has been agreed on. The trouble is that it is extremely difficult to be sure about radiation damage. A person may feel perfectly well, but the cells of his or her sex organs may be damaged, and this will not be discovered until the birth of deformed children or even grandchildren. Missions of the Apollo flights have had to cross belts of high radiation and , during the outward and return journeys, the Apollo crew accumulated(积累) a large amount of rems. So far, no dangerous amounts of radiation have been reported, but the Apollo missions have been quite short. We simply do not know yet how men are going to get on when they spend weeks and months outside the protection of the atmosphere, working in a space laboratory. Drugs might help to decrease the damage done by radiation, but no really effective ones have been found so far.

1.In which way is the atmosphere necessary to man according to the first paragraph?

A. It screens off the falling meteors.

B. It provides enough light for plants to grow.

C. It supplies the heat necessary for human survival.

D. It protects him against the harmful rays from space.

2.We know from the passage that 　　　　　　 .

A. exposure to even tiny amount of radiation is fatal( 致命的)

B. the effect of exposure to radiation is slow in coming

C. radiation is avoidable in space exploration

D. astronauts in spacesuits needn’t worry about radiation damage

3.The underlined word “deformed” probably means 　　　　 .

A. badly-shaped　　 　　 B. weak

C. naturally-grown　　　 D. ugly

4.It can be inferred from the passage that 　　　　　　　　 .

A. the Apollo mission was very successful

B. astronauts will have deformed children or grandchildren

C. protection from space radiation is no easy job

D. radiation is not a threat to well-protected space explorers

高二英语阅读理解中等难度题查看答案及解析

Not only ________ their money, but they were also in danger of losing their lives.

A．lost they          B．they lost          C．did they lose       D．they did lose

高二英语单项填空中等难度题查看答案及解析

Active participation in the classroom is not only accepted but also expected of the student in many courses. Some professors base part of the final grade on the student’ s oral participation. Although there are formal lectures during which the student has a passive role (I.e., listening and taking notes), many courses are organized around classroom discussions, students questions, and informal lectures.

A professor’s teaching style is another factor that determines the degree and type of student participation. Some professors prefer to control discussion while others prefer to guide the class without controlling it. Many professors encourage students to question and challenge their ideas. Students who make statements that contradict the professor’s point of view should be prepared to prove their positions.

Ideally, the teacher-student relationship at universities is characterized by trust. The “honor system” demands that the student be honest in all areas of school work. Thus, cheating on tests, presenting others’ ideas as original, and turning in homework done by someone else are all forbidden.

Violation of the honor system can result in a student’s failing a course, having a record of the violation placed in the student’s school files, or even being driven out from the university. Students who cheat may lose the respect of other students, particularly those who study for exams and work independently. When leaving the classroom while students are taking an exam, an instructor may or may not say, “I expect you all to obey the honor system.” Even if the words are not stated, the student is expected to work alone and not to share answers.

1.    In many courses, teachers__________.

A. allow the students to participate

B. require the students to participate

C. both A and B

D. neither A nor B

2.    If a student does not agree with the professor in a lecture, the student is encouraged to    __________.

A. remain silent

B. challenge the professor

C. leave the class

D. tell the professor immediately that he is wrong

3.    If a professor believes in the “honor system,” it implies his _________.

A. suspicion of the students

B. distrust of the students

C. trust in the students

D. pride in the students

4.    Violations of the honor system do not include __________.

A. cheating

B. failing a course

C. sharing answers

D. handing in homework done by another student

高二英语阅读理解简单题查看答案及解析

When building houses, people used to think about not only the climate of the areas but also the building materials and the fashions for their houses. However, since electricity became more and more expensive, people began to pay much more attention to the energy they could get for their houses and the new ways they could find to protect their houses from both cold and heat.

Now, houses of an old yet new type have been widely built. In some parts of the world, people share their houses with their livestock. During cold weather, they gather their cows, goats, or other animals and keep them on the first floor of their houses. The reasons are that the animals can be protected from the cold and that they can help to heat the houses as well. The body heat given off by the animals rises to the second floor of the houses, where people live. By sharing their houses with their livestock, people gain a source of heat.

People who live in or near cities do not usually keep livestock. However, home builders use the fact that heat rises. This natural law can be used in building houses in these areas. Instead of keeping livestock on the first floor, builders fill it with large rocks. As they are open to the sun’s rays during cold weather, these rocks take in heat. They also give off the heat, and, of course, the warm air rises into the living areas of the houses. So these houses are energy-saving.

House building becomes a great challenge to building designers and energy engineers. They try to meet this challenge by learning from old traditions and by using modern technology. And someday in the future, people will be able to live in more energy-saving houses.

1.What did people begin to consider as electricity was no longer cheap?

A．The climate of their areas

B．The building materials for their houses

C．The fashions for their houses

D．The energy for their houses

2.People in some areas gain a source of heat by _________.

A．keeping their livestock downstairs

B．protecting their livestock from the cold

C．sharing their houses only with their cows

D．living on the second floor with their livestock

3.The underlined words “natural law” in the third paragraph refer to the fact that ________.

A．heat raises the temperature in the houses

B．heat goes in the upward direction

C．heat goes up if temperature is raised

D．heat increases the temperature of rocks

4.From the passage, we can conclude that _______ .

A．people will no longer consider building materials in the future

B．almost all people will move into the houses heated by large rocks

C．energy-saving buildings will become more popular in the future

D．energy engineers will devote themselves only to modern technology

5.What is the main idea of the passage?

A．Energy-saving house building

B．House building is a great challenge

C．How to live in energy-saving houses

D．Energy-saving houses’ bright future

高二英语阅读理解中等难度题查看答案及解析

With all the wars, fighting and sadness in the world today, it's not only necessary, but also essential to have a good sense of humor just to help us get through each and every day of our lives. Putting a smile on someone's face when you know they are feeling down in the dumps ( 处于沮丧中), as the saying goes, makes me feel good and warms my heart.

How would you feel if you could not joke around with your wife, husband, child, co-worker, neighbor, close friend, or even just someone that you are standing in line with at your corner store? I am always saying things that make others smile or laugh, even if I don't know the person I'm joking around with. My Grandma always found humor in everything she did, even if it was the hardest job anyone could imagine. This not only relieves stress in any situation, but also is common courtesy (礼貌) to speak to others that are around you.

I know of a few people that don’t have a funny bone in their bodies, as they say. Everyone around them could be rolling on the floor after hearing a great joke and they would sit there without the slightest smile on their face. They don't get the joke that makes others laugh. I am busting a gut while they just sit there, looking at me as if I were from outer space. How can people not get a really funny joke?

Laughing is essential to keep your stress levels under control. Without humor we would find ourselves with a lot of psychological problems, or on a lot of medications to keep us from going crazy. There is too much sadness in this present world. It drives people crazy. We all need to find a way to bypass the sadness and bring a little light into our lives. So, I believe our best medicine is to get together and tell some jokes and have some fun laughing together.

1.According to the author, humor is useful in the aspect that ____________.

A. it makes people more confident

B. it can pick up people' s spirits

C. it can help rid the cruelty in the world

D. it can help people get on well with others

2.The phrase “busting a gut" in the third paragraph can be replaced by __________.

A. explaining carefully　　　　　　 B. speaking loud

C. keeping silent　　　　　　　　　　 D. laughing hard

3.In writing the passage, the author mainly intends to __________.

A. talk about his own understanding of humor

B. encourage people to be humorous in daily life

C. introduce a practical way to get through daily life

D. convince people of the power of being optimistic about life

4.What is the author' s attitude towards the present world?

A. Positive.　 B. Critical.

C. Satisfied.　 D. Indifferent.

高二英语阅读理解中等难度题查看答案及解析

With all the wars, fighting and sadness in the world today, it's not only necessary, but also essential to have a good sense of humor just to help us get through each and every day of our lives. Putting a smile on someone's face when you know they are feeling down in the dump, makes me feel good and warms my heart.

How would you feel if you could not joke around with your wife, husband, child, co-worker, neighbor, close friends, or even just someone that you are standing in line with at your corner store? I am always saying things that make others smile or laugh, even if I don't know the person I'm joking around with. My Grandma always found humor in everything she did, even if it was the hardest job anyone could imagine. This not only relieves stress in any situation, but also is common courtesy(礼貌)to speak to others that are around you.

I know of a few people that don’t have a funny bone in their bodies, as they say. Everyone around them could be rolling on the floor after hearing a great joke and they would sit there without the slightest smile on their face. They don't get the joke that makes others laugh. I am busting a gut while they just sit there, looking at me as if I were from outer space. How can people not get a really funny joke?

Laughing is essential to keep your stress levels under control. Without humor we would find ourselves with a lot of psychological problems, or on a lot of medications to keep us from going crazy. There is too much sadness in this present world. It drives people crazy. We all need to find a way to ignore the sadness and bring a little light into our lives. So, I believe our best medicine is to get together and tell some jokes and have some fun laughing together.

1.What is the author’s attitude towards the present world?

A. Critical　　 B. Positive

C. Satisfied　　 D. Indifferent

2.The phrase “busting a gut" in the third paragraph can be replaced by _______.

A. explaining carefully　　 B. speaking loud

C. keeping silent　　 D. laughing hard

3.According to the author, humor is useful in the aspect that _________.

A. it makes people more confident　　 B. it can pick up people’s spirits

C. it can help get rid of the cruelty in the world　　 D. it can help people get on well with others

4.In writing the passage, the author mainly intends to _______.

A. introduce a practical way to get through daily life

B. convince people of the power of humour

C. encourage people to be humorous in daily life

D. talk about his own understanding of humor

高二英语阅读理解中等难度题查看答案及解析

Tests and exams assess not only your subject knowledge, but also your ability to use the appointed time wisely. 1.

Do...

2. Try to answer the questions that arc worth a lot of points before those only worth a few points. This will allow you to spend more time on the higher point questions than the lower ones, which can provide a big increase for your final grade.

Move on when you’ve used up the time for a question. Sometimes it is hard to do it, especially if you are a perfectionist (完美主义者) or someone that likes to provide as many details as possible in your test responses,3. Otherwise, you may find at the end that a large number of questions are still unanswered.

Don’t...

Don’t allow yourself to get stuck on a question. You come across a question that you have no idea how to answer. Instead of moving on, you decide to sit there for 20 or 30 minutes annoyed over it.4. However, setting a time limit for questions and sticking to that time limit can help you avoid this problem.

5. When you’re taking a test, focus on the big picture. Your main goal is to answer all of the questions in the best way. Don’t spend amounts of time proofreading (校对) your work. It is the task that is best completed at the end if you have lime left.

A. Focus on higher point questions.

B. Get answers to the questions you know.

C. However, you must force yourself to move on.

D. Don’t spend too much time on the little things.

E. The following can help you make the most of your time.

F. Many students feel stressed when taking an examination.

G. If you’ve done this before, you’ve actually made a mistake.

高二英语七选五中等难度题查看答案及解析

The treaty will not only benefit the two countries and peoples but also _______world peace.

A. lead to      B. contribute to    C. link to      D.  apply to

高二英语单项填空中等难度题查看答案及解析