Instead of getting down to a new task as I __...

Instead of getting down to a new task as I _____, he examined the previous work again.

A.had expected B.have expected C.would expect D.expect

高三英语单项填空简单题查看答案及解析

The final examination is coming up soon, it is time for us to ______  our studies.

A．get down to       B．get out               C．get back for       D．get over

高三英语单项填空中等难度题查看答案及解析

As millions of Americans crowd into the gym armed with New Year’s resolutions to get in shape, medical experts are offering an additional reason for exercise: Regular workouts may help fight off colds and flu, reduce the risk of certain cancers and chronic diseases and slow the process of aging.

Physical activities have long been known to help maintain a healthy weight and reduce stress. Now, a growing body of research is showing that regular exercise—as simple as a brisk 30-to-45-minute walk five times a week—can boost the body’s immune system, increasing the circulation of natural killer cells that fight off viruses and bacteria. And exercise has been shown to improve the body’s response to the influenza vaccine (疫苗), making it more effective at keeping the virus at bay.

Medical experts warn inactivity poses as great a health risk as smoking, resulting in heart disease, cancer, depression, and diabetes. The Centers for Disease Control and Prevention says quite a few U.S. adults do not engage in any leisure-time physical activity.

Even slim people who are inactive are at high risk of death and disease. So while reducing obesity is an important goal, “the better message would be to get everyone to walk 30 minutes a day” says Robert Sallis, co-director of sports medicine at Fontana Medical Center. “We find it necessary to refocus the national message on physical activity, which can have a bigger effect on health than losing weight.”

Regular exercise has been shown to prevent the ongoing damage done to cells, tissues and organs that underlies many chronic conditions. Building on that earlier research, scientific studies are now suggesting that exercise-induced changes in the body’s immune system may protect against some forms of cancer.

Researchers are also investigating whether exercise can influence aging in the body. In particular, they are looking at whether exercise lengthens telomeres, the strands of DNA at the tips of chromosomes. When telomeres get too short, cells can no longer divide and they become inactive, a process associated with aging, cancer and a higher risk of death.

A study, published in Circulation, the medical journal of the American Heart Association, concluded that physical activity has an anti-aging effect at the cellular level, suggesting exercise could prevent aging of the cardiovascular(心脑血管) system.

The guidelines, developed by the Department of Health and Human Services, recommend that adults get at least two hours and 30 minutes weekly of moderate-intensity aerobic(有氧的) physical activity, or one hour and 15 minutes a week of vigorous-intensity aerobic exercise, or an equivalent combination of both. The guidelines also say that additional health benefits can be obtained from as much as doubling the minimum recommendation for aerobic exercise.

1.What is the main purpose of many Americans who take exercise?

A. To have a good figure.　　 B. To make them strong-minded.

C. To cure some common diseases.　　 D. To prevent themselves getting old.

2.It can be inferred from the passage that __________.

A. natural killer cells strengthen the body’s immune system

B. regular exercise can remove the viruses and bacteria

C. obesity has become a social problem in America

D. American people need to attach more importance to physical exercise

3.How can physical activity stop aging?

A. By preventing cell division.　　 B. By getting rid of aging cells.

C. By making telomeres longer.　　 D. By repairing the damaged organs.

4.What might be the best title for the passage?

A. New Studies about Physical Exercise　　 B. The Hidden Benefits of Exercise

C. How to Free Ourselves from Diseases?　　 D. Lose Weight or Keep Healthy?

高三英语阅读理解困难题查看答案及解析

When I was just out of college, I managed to get my dream job as a trader in New York City on the floor of the American Stock (股票) Exchange. Though it was a proud ________ , the job was simply too physically ________ . I must stand in a crowd every day, which often ________ me in a mindset (心态) that held me back.

Manhattan is a walking town and it’s difficult to ________ when you have a disability. Taxis are expensive and riding the subway ________ dozens of steep steps to get below ________ . This left me only one ________ — the bus.

One night, after the ________ for my job, I was aching with my self-pity ________ it started to rain on my walk to the bus stop. I became more and more ________ without an umbrella, thinking I’d never ________ it in this city and telling myself, “this city is just too hard” and “maybe it is just not possible for a guy like me”.

And then, I ________ the most beautiful, short moment. A couple came rolling by on roller skates, hand ________ hand as they skated what seemed like the tango (探戈). They were all wet but they saw the ________ as an opportunity and romance.

I suddenly became ________ for waiting in the rain because I would have missed this beauty ________ if I had been in a taxi or on the subway. This, although ________ , was an important moment on my journey to discovering the ________ of achieving health and happiness. When I change my mindset, ________ for a moment, to what is possible and work to get rid of the self-limiting beliefs that ________ my daily actions, I will be on the road to a healthier, happier life.

1.A.adjustment B.achievement C.agreement D.treatment

2.A.tiring B.disappointing C.relaxing D.boring

3.A.reminded B.expected C.took D.left

4.A.go up B.get around C.set off D.show up

5.A.acquires B.supports C.requires D.surrounds

6.A.ground B.street C.town D.city

7.A.change B.chance C.idea D.choice

8.A.struggle B.work C.experience D.influence

9.A.before B.while C.when D.after

10.A.nervous B.curious C.scared D.upset

11.A.get B.make C.put D.watch

12.A.recalled B.intended C.witnessed D.realized

13.A.on B.by C.to D.in

14.A.rain B.tree C.wind D.cloud

15.A.astonished B.grateful C.anxious D.relaxed

16.A.exactly B.instantly C.entirely D.suddenly

17.A.strange B.small C.normal D.different

18.A.humor B.honesty C.power D.process

19.A.still B.yet C.also D.even

20.A.affect B.follow C.forbid D.harm

高三英语完形填空困难题查看答案及解析

When I was just out of college, I managed to get my dream job as a trader in New York City on the floor of the American Stock（股票）exchange.

Though it was a proud_______,the job was simply too physically_____—I must stand in a crowd every day, which often_______me in a mindset（心态）that held me back.

Manhattan is a walking town and it's difficult to ______when you have a disability. Taxis are expensive and riding the subway _______dozens of steep steps to get below ______.This left me only one________—the bus.

One night, after the _______for my job, I was aching with self-pity________it started to rain on my walk to the bus stop. I became more and more________without an umbrella, thinking I’d never________it in this city. Telling myself, "this city is just too hard" and "maybe it is just not possible for a guy like me".

And then, I ______the most beautiful, short moment. A couple came rolling by on roller skates, hand_______hand as they skated what seemed like the tango. They were all wet but they saw the_____as an opportunity and romance.

I suddenly became grateful for waiting in the rain because I________have missed this beauty___________if I had been in a taxi or on the subway. This, although _______, was an important moment on my journey to discovering the________of achieving health and happiness. When I change my mindset, ______for a moment, to what is possible and work to get rid of the self-limiting beliefs that________my daily actions, I will be on the road to a healthier, happier life.

1.A. adjustment　　 B. achievement　　 C. agreement　　 D. treatment

2.A. tiring　　 B. boring　　 C. relaxing　　 D. disappointing

3.A. reminded　　 B. expected　　 C. took　　 D. left

4.A. go up　　 B. get around　　 C. set off　　 D. show up

5.A. requests　　 B. supports　　 C. requires　　 D. surrounds

6.A. ground　　 B. street　　 C. town　　 D. city

7.A. change　　 B. chance　　 C. idea　　 D. choice

8.A. struggle　　 B. work　　 C. experience　　 D. influence

9.A. before　　 B. while　　 C. when　　 D. after

10.A. nervous　　 B. curious　　 C. scared　　 D. upset

11.A. get　　 B. make　　 C. put　　 D. watch

12.A. recalled　　 B. observed　　 C. witnessed　　 D. realized

13.A. on　　 B. by　　 C. to　　 D. in

14.A. rain　　 B. tree　　 C. wind　　 D. cloud

15.A. shall　　 B. would　　 C. need　　 D. must

16.A. exactly　　 B. instantly　　 C. entirely　　 D. suddenly

17.A. strange　　 B. small　　 C. normal　　 D. different

18.A. humor　　 B. honest　　 C. power　　 D. principle

19.A. still　　 B. yet　　 C. also　　 D. even

20.A. affect　　 B. follow　　 C. forbid　　 D. harm

高三英语完形填空中等难度题查看答案及解析

I tried hard to get some information about the new technology out of his mouth, but he remained_________．

高三英语单项填空中等难度题查看答案及解析

As winter set in, it’s the perfect time to get out of town and escape the seasonal mood disorder. Here are vacation ideas to adopt now.

Costa Rica

Costa Rica, located in the Valle del General, is an off-the-radar agriculture town that’s not overrun with tourists. The area is known for its coffee, pineapples and sugar cane plantations, as well as its rich forests. What’s more, you can enjoy horseback riding, spend afternoons at the spa or tour a nearby wildlife shelter to look out for colorful birds, sloths and other animals.

Los Cabos, Mexico

If you love wine, travel to Los Cabos, a beautiful vacation destination at the southern edge of the Baja Peninsula. During your getaway, you can enjoy special wine tastings and dinner cooked by Los Cabos’s Michelin-starred chef. There are wildlife-viewing opportunities, too. From December through May, you can spot whales, manta rays and more wildlife.

Petit St Vincent, the Grenadines

This private Caribbean island was spared the anger of hurricanes Irma and Maria. What's more, the whole island is only 115 acres and has 22 cottages. Each cottage is located in a quiet place, and you can expect to unplug and recharge phones with no wireless connections, televisions or telephones in the cottages. Even better, you can spend your days admiring fascinating marine (海洋的) life at the Jean-Michel Cousteau Diving Caribbean center.

The Exumas, Bahamas

On Fowl Cay’s 50-acre private island, you can enjoy a carefree escape. Days can be spent fishing, boating and diving before wandering along white sands. The resort features large one-, two- and three-bedroom houses. Best of all, if you’re planning a group getaway or multigenerational trip, you rent the entire island for a one-of-a-kind island escape.

1.Why does the author recommend these places to readers?

A. To escape from extreme weather.　　 B. To experience out-of-town sights.

C. To beat winter blues.　　 D. To treat mental diseases.

2.What do we know about Petit St Vincent?

A. It suffered from Irma and Maria.　　 B. It’s a huge and quiet island.

C. People can admire fish off shore.　　 D. People can charge phones using wireless connections

3.Where can Tom best go with his grandparents and parents?

A. Los Cabos, Mexico.　　 B. Petit St Vincent, the Grenadines.

C. Costa Rica.　　 D. The Exumas, Bahamas.

高三英语阅读理解中等难度题查看答案及解析

He gave himself a new name to hide his ____ when he went to carry out the secret task.

A.emotion　　　　　　 B.talent　　　　　　　　 C.identity　　　　 D.treasure

高三英语单项填空中等难度题查看答案及解析

Russian police have started a new attempt to get drivers to slow down at zebra crossings by having painted horses as zebras walk across on the busiest streets in some of the big cities in an attempt to improve road safety and raise awareness among Russia’s notoriously (臭名昭著地) careless drivers.

The light grey horses, painted with black stripes, carried signs on their backs reading: “Careful, children are on their way to school.” The police sent the “zebras” to several different locations in the Russian capital, where officials in orange vests walked them over zebra crossings and handed out leaflets (传单) to passing drivers.

Some held up rainbow-coloured umbrellas over the painted animals to protect them from the rain. Russian roads are notoriously dangerous and drivers still rarely take the initiative (主动采取措施) to avoid pedestrians. Nearly half of all traffic accidents in the country’s big cities are caused by cars hitting pedestrians, and a third of those occur on crossings, according to traffic police figures published last month.

In the first six months of this year, 378 people were killed and more than 6, 600 injured on pedestrian crossings in Russia, according to police. In Moscow alone, 43 people were killed, including two children.

Though police officials said that only safe paint would be used on the animals, animal rights activists still disagreed with the idea, accusing the police of “treating animals like garbage”.

“Children understand that paints are bad for animals,” the Interfax news agency quoted president of Vita animal rights group Irina Novozhilova as saying.

Let’s hope this part of the campaign is over and animals are left out of future attempts to raise pedestrians’ awareness.

1.Why do Moscow police have “zebras” walk across on the busiest streets?

A. To make a call on protecting animals.

B. To remind people zebras are in danger of extinction.

C. To tell people it is dangerous to cross streets.

D. To raise drivers’ awareness of road safety.

2.What does the underlined word “them” in paragraph 2 refer to?

A. The zebras. B. The horses.

C. The policemen. D. The drivers.

3.From the text we can learn that ________.

A. most Russian drivers have realized the seriousness of the problem

B. Russian drivers often ignore traffic lights

C. Russian drivers seldom give way to pedestrians

D. the driving skills of Russian drivers are bad

4.What do animal rights activists think of the new attempt?

A. Drivers must slow down at pedestrian crossings.

B. These animals are ill-treated by the police.

C. The paints used on the horses are safe.

D. Road safety should be improved.

5.Which word can best describe the author’s attitude towards the campaign?

A. Critical. B. Reserved.

C. Doubtful. D. Positive.

高三英语阅读理解中等难度题查看答案及解析

阅读理解。

Robots performing tasks according to a predetermined set of instructions are nothing new.But robots able to learn how to cook by watching videos are a completely different approach, which is conducted by a group of researchers at the University of Maryland.

If you have posted a video of your favorite recipe on the popular website YouTube, chances are that it will be used by a robot.University of Maryland's professor Yiannis Aloimonos, leader of the group, said “There exists a large amount of video information on the Internet that our robots can capitalize_on.”

“At present, the videos are fed electronically，”said research scientist Cornelia Fermuller.“Originally, we took our own videos, our cameras looking at us doing the cooking，”she explained.“And, as the robot advances, it reacts to good quality videos.And it will react to even lower quality homemade videos.”

So far, the robot named Julia can make a simple salad by breaking each task into basic parts, such as grasping a spoon, bringing it to the bowl, stirring the salad and observing the results.

But why teach a robot how to understand a video when it can easily follow a fixed program？Aloimonos believes predetermined instructions lack flexibility.He thinks one of the problems is how to make the robot understand and use what it learns during a certain task, the so­called feedback (反馈意见); another is the introduction of language.

“I believe it will take quite some time before the robots are able to understand metaphorical (比喻性的) language，”he added.“But，” he said，“we don't need that to create a new world where the robots will be working for us.”

1.The underlined phrase “capitalize on” in Paragraph 2 probably can be replaced by ________.

A．take hold of　　　　 　 B．make use of

C．keep track of 　　　 D．catch sight of

2.Aloimonos probably agrees that at present the robot ________.

A．can not fully digest what it learns

B．can not make a simple salad

C．can follow home­made videos

D．can understand metaphorical language

3.Robots are taught to understand a video mainly because ________.

A．they can easily follow fixed programs

B．they are smart enough to learn cooking

C．cooking videos are more interesting to watch

D．predetermined instructions are not flexible

4.Which of the following might best serve as the title of the passage?

A．Robots Creating a New World

B．Robots Making Cooking Videos

C．Robots Learning to Cook by Watching Videos

D．Robots Performing Tasks by Following Instructions

高三英语阅读理解中等难度题查看答案及解析