— The designers are over the moon.What's up?—...

— The designers are over the moon.What's up?

— They've reached an agreement on_________the bonuses are to be divided later.

A.why B.how C.where D.when

高三英语单项填空中等难度题查看答案及解析

The scientists are able to ____________ accurately when the spaceship will reach the moon.

A．accumulate      B．calculate         C．appoint                    D．estimate

高三英语单项填空简单题查看答案及解析

The scientists are able to ____________ accurately when the spaceship will reach the moon.

A．accumulate      B．calculate     C．appoint                D．estimate

高三英语单项填空中等难度题查看答案及解析

Humans have launched themselves into the outer space. They’ve landed on the moon. They’ve built habitable space stations that orbit the Earth. The next giant leap for mankind is to reach another planet – specifically, Mars.

The problem is that it’s no easy task. The planet is 586 times further away from the Earth than the moon, and it’ll take around 180 to 220 days to reach Mars, depending on where each planet is in its orbit. Such long periods in space have suggested many potential health problems, including hormonal changes, skin conditions, and muscle and bone deterioration (损耗).

Here’s where some furry friends come in. A wide range of animals have been in space, from fruit flies and spiders to cats, and dogs. Such experiments began as far back as the late 1940s in first tests to see if living things could withstand the extreme g-force (重力) of a rocket launch.

Mice continue to play a very important part in space experiments, mainly because the animals make excellent test subjects. They’re small, which makes them inexpensive and easy to care for. In addition, their size and short life span make it possible to do the equivalent of several human years of tests in a much shorter time. Finally, because mice are mammals, they share many common characteristics with humans in terms of genetics, biology and behavior.

Astromice have hit the headlines recently, as a team of scientists led by Betty Nusgens, professor of biology at the University of Liege in Belgium, found that the mice suffered a 15 percent thinning of their skin after 91 days aboard the International Space Station (ISS).

This experiment was part of a wider NASA mission (任务) called the Mice Drawer System (MDS). The Italian Space Agency developed the facility, which allows six mice to be housed, monitored, and automatically fed and watered aboard the ISS, among which three survived during the mission.

The mice have participated in 20 separate experiments, to study such effects as osteoporosis (骨质疏松症), anemia (贫血) and heart health.

Results for the 20 experiments are coming in gradually. But it’s clear that mice continue to play an important role in the ongoing quest to conquer the final frontier.

1.We can infer from Paragraphs 2-3 that ______.

A. Mars is the farthest planet away from Earth discovered so far

B. the journey to Mars could put humans’ health at risk

C. it was in the late 1940s that animals were first sent to the ISS

D. animals that have been sent into space have mostly survived

2.The underlined word “withstand” in Para.3 means _________.

A.set up　　 　　 B. hold up

C. work out　　 D. come across

3.According to Betty Nusgens and her team, the mice aboard the ISS ______.

A. suffered the loss of part of their skin

B. all survived for the duration of the mission

C. were fed and watered by the astronauts

D. participated in 20 experiments that made great breakthroughs

4. The main purpose of the article is to _____.

A. describe the role mice play in scientific research

B. report on the results of the Mice Drawer System

C. analyze how mice could pave the way to Mars

D. change people’s traditional attitudes toward mice

高三英语阅读理解中等难度题查看答案及解析

Humans have launched themselves into the outer space. They've landed on the moon. They've built habitable space stations that orbit the Earth. The next giant leap for mankind is to reach another planet–specifically, Mars.

The problem is that it's no easy task. The planet is 586 times further away from the Earth than the moon, and it'll take around 180 to 220 days to reach Mars, depending on where each planet is in its orbit. Such long periods in space have suggested many potential health problems, including hormonal changes, skin conditions, and muscle and bone deterioration (损耗).

Here's where some furry friends come in. A wide range of animals have been in space, from fruit flies and spiders to cats, and dogs. Such experiments began as far back as the late 1940s in first tests to see if living things could withstand the extreme g-force (重力) of a rocket launch.

Mice continue to play a very important part in space experiments, mainly because the animals make excellent test subjects. They're small, which makes them inexpensive and easy to care for. In addition, their size and short life span make it possible to do the equivalent of several human years of tests in a much shorter time. Finally, because mice are mammals, they share many common characteristics with humans in terms of genetics, biology and behavior.

Astromice have hit the headlines recently, as a team of scientists led by Betty Nusgens, professor of biology at the University of Liege in Belgium, found that the mice suffered a 15 percent thinning of their skin after 91 days aboard the International Space Station (ISS).

This experiment was part of a wider NASA mission (任务) called the Mice Drawer System (MDS). The Italian Space Agency developed the facility, which allows six mice to be housed, monitored, and automatically fed and watered aboard the ISS, among which three survived during the mission.

The mice have participated in 20 separate experiments, to study such effects as osteoporosis (骨质疏松症), anemia (贫血) and heart health.

Results for the 20 experiments are coming in gradually. But it's clear that mice continue to play an important role in the ongoing quest to conquer the final frontier.

1.We can infer from Paragraphs 2-3 that ______.

A. Mars is the farthest planet away from Earth discovered so far

B. animals that have been sent into space have mostly survived

C. it was in the late 1940s that animals were first sent to the ISS

D. he journey to Mars could put humans' health at risk

2.The underlined word "withstand"in Para.3 means _________.

A. set up　　 B. hold up

C. work out　　 D. come across

3.According to Betty Nusgens and her team, the mice aboard the ISS ______.

A. suffered the loss of part of their skin

B. all survived for the duration of the mission

C. were fed and watered by the astronauts

D. participated in 20 experiments that made great breakthroughs

4.The main purpose of the article is to _____.

A. describe the role mice play in scientific research

B. report on the results of the Mice Drawer System

C. analyze how mice could pave the way to Mars

D. change people's traditional attitudes toward mice

高三英语阅读理解困难题查看答案及解析

Redwood trees are the tallest plants on the earth，reaching heights of up to 100 meters．They are also known for their longevity，typically 500 to 1000 years，but sometimes more than 2000 years．A hundred million years ago，in the age of dinosaurs，redwoods were common in the forests of a much more moist and tropical North America．As the climate became drier and colder，they declined to a narrow strip along the Pacific coast of Northern Califomia．

The trunk of redwood trees is very strong and usually forms a single straight column．It is covered with a soft bark．This bark can be pretty thick，well over two feet in the more mature trees．It gives the older trees a certain kind of protection from insects，but the main benefit is that it keeps the center of the tree harmless from moderate forest fires because of its thickness．This fire resistant quality explains why the giant redwood grows to live that long．While most other types of trees are destroyed by forest fires，the giant redwood actually prospers because of them．

Moderate fires will clear the ground of competing plant life，and the rising heat dries and opens the ripe fruit of the redwood，releasing many thousands of seeds onto the ground below．

New trees are often produced from shoots，little baby trees，which form at the base of the trunk．These shoots grow slowly，fed by the root system of the “mother’’ tree．When the main tree dies，the shoots are then free to grow as full trees，forming a “fairy ring” of trees around the original tree．These trees，in turn，may give rise to more shoots，and the cycle continues．

1.Why were redwood trees easier to find in the forests of North America millions of years ago?

A．The trees were taller and stronger．

B．The soil was softer for seeds to develop．

C．The climate there was warmer and wetter．

D．The temperature was lower along the Pacific coast．

2.Which of the following is a function of the tree bark as mentioned in the passage?

A．It allows redwood trees to bear seeds．

B．It prevents redwood trees from attack by insects．

C．It helps redwood trees absorb water in the air．

D．It makes redwood trees more beautiful and appealing．

3.Why do redwood trees grow to live that long according to the passage?

A．They have heavy and straight tree trunks．

B．They are properly watered and catered to．

C．They are more resistant to fire damage than other trees．

D．They produce many young trees to maintain their life cycle．

4.How does a “fairy ring’’ form according to the passage?

A．By killing an old tree．　　　　　　　　　 　　　　　　　　　 　　　　　　　　　 　　　　　　　　　 B．By connecting root systems．

C．By inserting holes into old trees．　　　　　　　　　 　　　　　　　　　 D．By surrounding a mature tree．

高三英语阅读理解中等难度题查看答案及解析

More than one-third of adults in the United States are obese(肥胖). In fact, over obesity has reached such proportions that one big-city mayor has gone about banning large-sized, sugary soft drinks and the First Lady has been on a campaign to control the dietary offerings in public schools.

Even many adults who do not fit the clinic definition of obesity are still overweight, and a large percentage are looking for the best ways to lose weight.

Reducing pounds largely comes down to the two-sided factors of diet and exercise. Not carrying out the first one enough, and not getting enough of the second one, ends up giving the individual a recipe for being overweight.

Advising someone to eat less and exercise more might be the easiest advice possible, but it’s also, partially, an oversimplification. Dieting has more to do with the types of food you eat than how much you eat. Reduce the amount of red meat in your diet. If you don’t want to eliminate red meat altogether, choose cuts of meat with less fat content. Limit your intake of salt and starches. If you’ve got to have potato chips alongside your sandwich at lunch, choose the baked potato chips that contain less fat than the deep-fried chips. You might find you’re really not sacrificing that much in terms of taste.

A diet rich in fruits, vegetables, egg whites, fish and nonfat dairy products will certainly aid in the mission of losing weight. Drink more water and less sugary drinks. If you have to have a soda, a diet soda is a better option, but seltzer is an even better choice than that.

It’s important—if not always easy—to make sure you get at least some physical activity each and every day. If your feet won’t allow for a regular jogging regimen, then make sure you take lots of walks. Next time you need to mail a letter, walk to the mailbox instead of driving. Try to work in a daily walk in your neighborhood.

1. You should　　　　　　 when you want to lose weight

A. try not to fit the clinic definition of obesity

B. diet as well as exercise enough

C. get little exercise every day

D. focus your attention on diet only

2.The First Lady has started a movement to　　　　　　 .

A. raise people’s awareness of healthy diet

B. control the public school dietary supplying

C. ban the sugary soft drinks

D. realise the importance of dieting

3. What can we learn from the fourth paragraph?

A．We must keep far away from fat and ignore our taste.

B．The simplest and best way to lose weight is to eat and exercise more.

C．We should remove the red meat in our diet completely to reduce weight.

D．When it comes to diet, no one needs to starve themselves in order to lose weight.

4.The last paragraph is mainly about　　　　　　 .

A. walk            B. diet

C. exercise        D. jog

高三英语阅读理解中等难度题查看答案及解析

More than one-third of adults in the United States are obese(肥胖)．In fact，over obesity has reached such proportions that one big-city mayor has gone about banning large-sized，sugary soft drinks and the First Lady has been on a campaign to control the dietary offerings in public schools．

Even many adults who do not fit the clinic definition of obesity are still overweight，and a large percentage are looking for the best ways to lose weight．

Reducing pounds largely comes down to the two-sided factors of diet and exercise．Not carrying out the first one enough，and not getting enough of the second one，ends up giving the individual a recipe for being overweight．

Advising someone to eat less and exercise more might be the easiest advice possible，but it’s also，partially，an oversimplification．Dieting has more to do with the types of food you eat than how much you eat．Reduce the amount of red meat in your diet．If you don’t want to eliminate red meat altogether，choose cuts of meat with less fat content．Limit your intake of salt and starches．If you’ve got to have potato chips alongside your sandwich at lunch，choose the baked potato chips that contain less fat than the deep-fried chips．You might find you’re really not sacrificing that much in terms of taste．

A diet rich in fruits，vegetables，egg whites，fish and nonfat dairy products will certainly aid in the mission of losing weight．Drink more water and less sugary drinks．If you have to have a soda，a diet soda is a better option，but seltzer is an even better choice than that．

It’s important—if not always easy—to make sure you get at least some physical activity each and every day．If your feet won’t allow for a regular jogging regimen，then make sure you take lots of walks．Next time you need to mail a letter，walk to the mailbox instead of driving．Try to work in a daily walk in your neighborhood．

1.You should________when you want to lose weight

A． try not to fit the clinic definition of obesity

B． diet as well as exercise enough

C． get little exercise every day

D． focus your attention on diet only

2.The First Lady has started a movement to________．

A． raise people’s awareness of healthy diet

B． control the public school dietary supplying

C． ban the sugary soft drinks

D． realize the importance of dieting

3.What can we learn from the fourth paragraph？

A． We must keep far away from fat and ignore our taste．

B． The simplest and best way to lose weight is to eat and exercise more．

C． We should remove the red meat in our diet completely to reduce weight．

D． When it comes to diet，no one needs to starve themselves in order to lose weight．

4.The last paragraph is mainly about________．

A． walk 　　　　 　 B． diet

C． exercise　 　 D． jog

高三英语阅读理解简单题查看答案及解析

More than one-third of adults in the United States are obese(肥胖)．In fact，over obesity has reached such proportions that one big-city mayor has gone about banning large-sized，sugary soft drinks and the First Lady has been on a campaign to control the dietary offerings in public schools．

Even many adults who do not fit the clinic definition of obesity are still overweight，and a large percentage are looking for the best ways to lose weight．

Reducing pounds largely comes down to the two-sided factors of diet and exercise．Not carrying out the first one enough，and not getting enough of the second one，ends up giving the individual a recipe for being overweight．

Advising someone to eat less and exercise more might be the easiest advice possible，but it’s also，partially，an oversimplification．Dieting has more to do with the types of food you eat than how much you eat．Reduce the amount of red meat in your diet．If you don’t want to eliminate red meat altogether，choose cuts of meat with less fat content．Limit your intake of salt and starches．If you’ve got to have potato chips alongside your sandwich at lunch，choose the baked potato chips that contain less fat than the deep-fried chips．You might find you’re really not sacrificing that much in terms of taste．

A diet rich in fruits，vegetables，egg whites，fish and nonfat dairy products will certainly aid in the mission of losing weight．Drink more water and less sugary drinks．If you have to have a soda，a diet soda is a better option，but seltzer is an even better choice than that．

It’s important—if not always easy—to make sure you get at least some physical activity each and every day．If your feet won’t allow for a regular jogging regimen，then make sure you take lots of walks．Next time you need to mail a letter，walk to the mailbox instead of driving．Try to work in a daily walk in your neighborhood．

1.You should________when you want to lose weight

A． try not to fit the clinic definition of obesity

B． diet as well as exercise enough

C． get little exercise every day

D． focus your attention on diet only

2.The First Lady has started a movement to________．

A． raise people’s awareness of healthy diet

B． control the public school dietary supplying

C． ban the sugary soft drinks

D． realize the importance of dieting

3.What can we learn from the fourth paragraph？

A． We must keep far away from fat and ignore our taste．

B． The simplest and best way to lose weight is to eat and exercise more．

C． We should remove the red meat in our diet completely to reduce weight．

D． When it comes to diet，no one needs to starve themselves in order to lose weight．

4.The last paragraph is mainly about________．

A． walk　 　　 B． diet

C． exercise　　 D． jog

高三英语阅读理解中等难度题查看答案及解析

The travel costs ____ 2,000 dollars.

A. reach as many as    B. are added up to     C. come to    D. add up

高三英语单项填空中等难度题查看答案及解析