题目内容

Elephants on the coast of Thailand are acting strange.They stamp their feet and motion toward the hills.The sea draws back from the beaches.Fish fall heavily in the mud.Suddenly,a huge wave appears.This is no ordinary wave.It is tsunami!

Tsunami waves are larger and faster than normal surface waves.A tsunami wave can travel as fast as a jet plane and can be as tall as a ten-story building.Imagine dropping a stone into a pond.The water on the surface ripples(起涟漪).A tsunami is like a very powerful ripple.Tsunamis begin when the ocean rises or falls very suddenly.Large amounts of seawater are displaced.This movement caused huge waves.

For a tsunami to occur,there must be some kind of force that causes the ocean water to become displaced.Most tsunamis are caused by underwater earthquakes.However,volcanoes ,landslides(塌方),large icebergs,and even meteorites(陨石)are capable of causing one of these mighty waves.

Tsunamis are extremely powerful.Ordinary waves lose power when they break.Tsunami waves can remain powerful for several days.Because tsunami waves are so strong,they can kill people,damage property,and completely ruin an ecosystem in just one hour.

Scientists have no way of predicting when a tsunami will hit.However,if a powerful enough earthquake occurs, scientists can send out a warning or a watch.A warning means that a tsunami will very likely hit soon.A watch means that conditions are favorable for a tsunami.When people are informed of a watch or a warning,they have more time to prepare.It is best not to get caught unaware when a tsunami is on the way.

1.Elephants are acting strange mostly because they_______.

A. dislike the huge wave

B. are afraid of the big fish

C. can sense something out of the ordinary

D. see the ocean drawing back from the beaches

2.Why do Tsunamis cause so much destruction?

A. They are not familiar to most people.

B. They are very powerful and long-lasting.

C. They break on the coast,unlike normal waves.

D. They are caused by underwater earthquakes.

3.From the text,we can learn that_______.

A. a tsunami travels as fast as normal waves

B. a tsunami is formed by huge normal sea waves

C. a tsunami warning is more serious than a watch

D. a warning and watch both mean a tsunami has formed

4.What is this text mainly about?

A. How to guard against tsunami

B. Differences between waves types

C. What to do with tsunami waves.

D. Causes and effects of tsunami

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The World Health Organization says the widespread use of sugar in food products and drinks is a major concern in many areas. So WHO officials are calling on governments to require taxes on sugary drinks in an effort to limit their usage and popularity. The officials believe the taxes also would reduce the risk of health problems resulting from obesity.

Obesity is a condition in which the body stores large, unhealthy amounts of fat. Obese individuals are considered overweight. A new report says that in 2014 more than one-third of the adults in the world were overweight, and 500 million were considered obese. The United Nations agency estimates that in 2015, 42 million children under age 5 were either overweight or obese. It says that number represents an increase of about 11 million during the past 15 years. Almost half of these boys and girls live in Asia and one-fourth in Africa.

The U.N. agency blames unhealthy diets for a rise in diabetes cases. There are 422 million cases of the disease worldwide. WHO says 1.5 million people die from it every year. It says the use of sugar in food products, like sugary drinks, is a major reason for the increase in rates of obesity and diabetes.

Temo Waqanivalu is with the agency’s Department for the Prevention on Non-Communicable Diseases. He told VOA hat taxing sugary drinks would reduce consumption and save lives. Waganivalu noted that Mexico enacted a 10 percent tax on sugary drinks in 2014. He said by the end of the year, there was a 6 percent drop in the consumption of such drinks. Among poor people, the number of people who consumed sugary drinks dropped by 17 percent.

The WHO says people should limit the amount of sugar they consume. It says they should keep their sugar intake to below 10 percent of their total energy needs, and reduce it to less than 5 percent for improved health.

1.Why are taxes on sugary drinks required?

A. To limit their use and popularity.

B. To readjust the economic structure.

C. To warn people to change their life style.

D. To ensure the market’s diverse development.

2.What do the figures in the second paragraph suggest?

A. Adult obesity is ignored at present.

B. Obesity is a severe worldwide problem.

C. Obesity can block economic development.

D. Obesity is most serious in developed countries.

3.What does the underlined word “enacted” mean in the passage?

A. Abolish B. Pass

C. Promise D. Reduce

4.What does the example of Mexico prove?

A. Tax policies are unfair to the poor.

B. Sugary drinks are a threat to health.

C. The poor consume more sugary drinks.

D. Taxing sugary drinks makes a difference.

Recently there has been a heated debate on whether the university should charge a fee to the public who use its sports field. People’s attitudes toward it vary from person to person.

Many people think that universities should serve the public, not just their professors and students. In 1. opinion, universities are public assets—they should serve not only the students and faculty 2. the general public as well. If there are too many “outside” people on the campus disturbing the order, school officials should do something to control the crowds without3.(demand) payment. In addition, the university has many other options to control public access4. the campus or sports field, such as giving free access cards to 5. (resident) of the closest communities, or rotating a limited number of cards between residents. Charging a fee is not a fair option.

However, opponents argue that universities are not 6.(complete) open spaces for the public to use. They hold the view that charging a fee is the most effective way of controlling access and making the most value out of the university’s resources. A high fee would filter out most of the visitors who have no desire 7.(use) the sports field for its intended purpose. Besides, universities and their assets are expensive investments, 8. (fund) by the government and the public, for the education of students and 9. (science) research. If members of the public 10.(want) to use these facilities, which might cause stress on the university’s resources, it will make sense that they should pay a price. They also think neighboring residents have other options for recreation, such as public parks, if they do not want to pay money to use the sports field.

One day, Lindsay and Erica were sitting at Lindsay’s house working very hard. Fourth grade was tough, and they were working on a science project about weather. Lindsay was a hard worker like Erica, so the two girls were happy to have each other as partners. They were writing about rain and were amazed to learn that Hawaii is the world’s wettest place. Lindsay found that Mount Waialeale, on the island of Kauai, gets about 460 inches of rain a year! In 1982, Mount Waialeale set an all-time world record when it received 666 inches of rain! The girls knew that their classmates would find all these facts interesting.

The girls were enjoying the fun facts they were finding when all of a sudden, Lindsay saw Erica choking. Erica had been chewing on a pen cap and had accidentally swallowed it! Erica started pointing to her neck. Lindsay asked her if she was choking. When Erica nodded to say yes, Lindsay quickly stood up and did the Heimlich maneuver (策略) to try to help Erica stop choking.

Lindsay was afraid of hurting her friend, so the first time she tried the Heimlich maneuver, she did not do it very hard. She tried a second time, and nothing happened. After trying it a third time, the pen cap flew out of Erica’ mouth!

Erica was very grateful to Lindsay. She was terrified when she realized she had swallowed the pen cap and could not breathe. Lindsay was very brave and saved her friend. This was one science project that both girls would never forget!

1.What did the two girls think of the facts they were finding?

A. Simple B. Abstract

C. Interesting D. Tough

2.Eric was choking because ______.

A. she swallowed a pen cap by accident

B. she was hurt by a pen cap

C. food was stuck in her throat

D. her neck was hurt by a pen point

3.What does the Heimlich maneuver probably refer to?

A. Person B. Book

C. Tool D. First aid

4.It can be inferred that ________.

A. Lindsay has a good knowledge of first aid

B. Erica pretended to be choking

C. Lindsay could not breathe without Erica

D. Eric would be sent to the hospital

I stand outside waving at the car pulling slowly out of our driveway. I force a smile, hoping it will cover up my tearing eyes, but I know it’s not working. I run into the house, slam the door behind me, and begin crying. It’s just occurred to me that I can’t see my elder sister, Monsura, in the next four months.

I ask myself why it is that I’m crying when I know she's doing something good for herself. I feel selfish for thinking about it but I’d be lying if I said I was happy for her choosing to study in a university in Boston. When my brother, Shafat, left for college, it was different. I still had one sibling at home to call me the stupidest person on a daily basis.

I am reminded of the things we did together as kids. In our old two-bed-room apartment, our parents gave in to our constant begging and traded rooms with us for one night. It was like being part of the amusement park, using our parents’ big bed as a trampoline (蹦床).It was during the first night that I witnessed a full moon. My sister and I believed my brother. He said that the moon was yellow because it was made from cheese. We made plans to visit the moon so we could melt a part of it and make cheese dip. But now I laugh at myself for being so innocent.

Sitting in front of my computer, I listen to songs that remind me of my two best friends. I come to terms with the fact that there's no longer anyone here to laugh uncontrollably with me or to turn to at night when I have a nightmare.

I’m shaken into reality by the sound of my cell phone ringing. Shafat is calling. I pick up and he immediately says “Thank you for such a great childhood.'' Those few words mean the world to me. We three-way call Monsura and spend the next hour reliving memory after memory, and by the end, I forget that I’m alone at home.

1.Why does the writer feel very sad?

A. She isn't admitted to a university.

B. She has no one to accompany her at home.

C. Monsura thinks she is stupid.

D. Monsura and Shafat didn’t go to the same college.

2.The kids traded rooms with their parents because .

A. they hoped to sleep in one room

B. they expected to see a fall moon

C. they could play together on their parents’ bed

D. they wanted to make plans to visit the moon

3.What is the turning point of the story?

A. That the writer’s brother left home for college.

B. That the writer cried hard on the day when Monsura left.

C. That the writer listened to songs that remind her of something.

D. That the writer talked with her sister and brother on the phone,

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

A. My childhood B. A very sad day

C. A hard-won family union D. The most precious family love

Ice climbing is a dynamic winter sport that combines excitement, technique and determination.

Back in 2014, the sport was presented to the public during the Sochi Winter Olympic Games in Russia. The next goal for ice climbing is showcasing the sport in 2018 Pyeongchang Olympic Winter Games before it's included in 2022 Beijing Winter Olympic Games.

If you are already hooked on this sport, here are some of the world's best places with epic ice formations that you shouldn't miss.

Ouray, Colorado, US

Known as the "Switzerland of the US", Ouray offers climbers easy access to more than 200 named climbs, with free entrance to the park. The ice park also offers guide and instructional services for beginners. Ouray usually hosts the biggest ice festival in North America every January.

Shuangqiaogou, Sichuan, China

China has a lot of ice walls, which are located in different mountains in the northern and western parts of the country. Among them, Sichuan province's Shuangqiaogou, or Twinbridge Trench, in Mount Siguniang has some of the finest such spots. The ice season in the area usually starts mid-December and runs through late February. Climbers can enjoy various ice formations along with a clean, quiet environment.

Valdez, Alaska, US

Alaska's breathtaking Valdez region has been attracting world-class climbers to the region for decades. Each year, thrill-seekers flock there to follow classic routes such as Sheep Creek and Solomon Gulch, while others explore the area by themselves, hoping to find the next classic site on their own adventures. Other winter sports activities such as glacier hiking, skiing and sled trips can also be found there.

1.Which of the following is WRONG according to the passage?

A. Ice climbing was first invented in 2014.

B. Ice climbing was presented to the public during the Sochi Winter Olympic Games.

C. Ice climbing is expected to enter the 2022 Beijing Winter Olympic Games.

D. One should be skillful and determined to be engaged in ice climbing.

2.You can receive the services in Ouray park EXCEPT ________.

A. instruction

B. guide

C. ice festivals

D. entrance of charge

3.The ice season in ________ is as long as about 70 days.

A. Ouray

B. Shuangqiaogou

C. Valdez

D. Pyeongchang

4.Which of the words can best describe the sports in Valdez?

A. Thrilling and open.

B. Enjoyable and safe.

C. Tiring and safe.

D. Boring and dangerous.

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