题目内容

On the day the tornado hit,there was no indication that severe weather was on its way—the sky was blue and the sun bad been out.The first alert my husband,Jimmy,67,and I,65,got came around 9 p.m.,from some scrolling text on the TV Jimmy was watching.He ran upstairs to find me in our third-floor bedroom,and we changed the channel from the presidential primary debate I had been watching to our local Pensacola,Florida,station.

No sooner had we found coverage of the tornado than it was on top of us.It was the loudest thing I have ever heard.The bones of the house shook,and the power went out.The wind began to roar through the house,most likely through blown-out windows and the door to our garage.We had three flights of steps to navigate to get to the relative safety of the first floor,because the cupboard down there is underneath a brick staircase.

I didn't know how or if we would make it down the steps.It felt as if there were no floor underneath me as the wind lifted me off my feet.I tried to move forward,but this intense pressure held me in place.

As we reached the last flight of steps,our front door blew out.Pieces of glass that looked like crushed ice flew everywhere.Suddenly,a three-foot-long tree branch crashed into the door frame.It flew over our heads,missing us by inches.Had we been one step up,it would have hit us.

By the time I reached the cupboard,the tornado had been over us for about a minute.Jimmy pushed me down to the cupboard floor,but he couldn't get inside himself because of the wind.I held Jimmy's arm and tried to bring Jimmy with it.My knees were full of glass,but at that moment,I felt no pain.If I had let go,Jimmy would have flown right out the back of the house and into the bay.

All of a sudden,Jimmy lifted off his feet like people in tornadoes do in the movies.I thought he was gone.And then everything stopped.He landed on his feet.In those first quiet moments,I couldn't believe it was over,Jimmy said he'd go outside to check."No,"I said."Don't leave me.Don't leave me."

Our neighbor says the storm lasted four minutes.In that time,four of the twelve town houses in our unit were completely destroyed.Of the houses left standing,ours suffered the most damage.Amazingly,none of us were severely injured.

1.What does the underlined word coverage mean?

A. power B. description

C. arrival D. delay

2.Which of the following sentences is NOT true about the passage?

A. There was not any symbol of the tornado's coming.

B. A three-foot-long tree branch hit the couple.

C. Both of the couple couldn't get into the cupboard floor.

D. Jimmy didn't fly right out the back of the house.

3.Why didn't the wife feel pain?

A. Because she didn't get any hurt when the storm hit.

B. Because she was too scared to feel pain.

C. Because she devoted all her strength to holding on to her husband.

D. Because she had reached the cupboard and she was safe.

4.The author wrote the passage to .

A. share with us her experience of surviving a tornado

B. warn us of the danger caused by tornados

C. show us how to fight against a tornado

D. tell us how to protect us from dangerous tornados

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In Germany there are different kinds of high schools. Some prepare students for workers, others prepare them for college. All schools are great places for making friends and learning German.

Short days

Most high schools in Germany begin at about 8:00 a.m. and end at about 3:30 p.m. This means your morning will be busy with classes. You will have time to do homework and take part in private(私人的) clubs after school.

Formal setting

In Germany, teachers and students’ relationship is more formal than you might be used to. Teachers are respected and students must use the formal “Sie(德语:您)” when talking to teachers.

Getting to school

Most students take public transport to school or ride a bicycle. Some areas have school buses. It is not common for parents to drive students to school.

Private clubs

In many countries, schools offer official sports and after-school activities. This is less common in Germany. After-school activities are usually organized through private clubs. There are clubs for things like soccer, dance, choir, theatre and almost everything else. Once you are in Germany, ask around at school and talk to other students to find out what private clubs are in your area and meet your interests.

Different states, different schools

Each of Germany’s 16 states has its own slightly different school systems. The school system in Brandenburg will be a little different from the system in Bavaria for example. Where you live, your knowledge level and your age will decide what school you can attend.

1.For high school students in Germany, which is NOT the common transport to school?

A. Parents’ cars B. School buses

C. Public transport D. Students’ bicycles

2.From the passage, we can learn that in Germany _______.

A. all kinds of high schools are for college

B. students can join private clubs to meet their interests

C. students can take part in after-school activities from 8:00 a. m .to 3:30 p.m.

D. age is not important for attending schools

3.What can be the best title for this article?

A. German High Schools B. German Public Transport

C. German Private Clubs D. German College Systems

Batteries can power anything from small sensors to large systems. While scientists are finding ways to make them smaller but even more powerful, problems can arise when these batteries are much larger and heavier than the devices themselves. University of Missouri(MU) researchers are developing a nuclear energy source that is smaller, lighter and more efficient.

“To provide enough power, we need certain methods with high energy density(密度)”, said Jae Kwon, assistant professor of electrical and computer engineering at MU. “The radioisotope(放射性同位素) battery can provide power density that is much higher than chemical batteries.”

Kwon and his research team have been working on building a small nuclear battery, presently the size and thickness of a penny, intended to power various micro / nanoelectromechanical systems (M/NEMS). Although nuclear batteries can cause concerns, Kwon said they are safe.

“People hear the word ‘nuclear’ and think of something very dangerous,” he said, “However, nuclear power sources have already been safely powering a variety of devices, such as pace-makers, space satellites and underwater systems.”

His new idea is not only in the battery’s size, but also in its semiconductor(半导体). Kwon’s battery uses a liquid semiconductor rather than a solid semiconductor.

“The key part of using a radioactive battery is that when you harvest the energy, part of the radiation energy can damage the lattice structure of the solid semiconductor,” Kwon said, “By using a liquid semiconductor, we believe we can minimize that problem.”

Together with J. David Robertson, chemistry professor and associate director of the MU Research Reactor, Kwon is working to build and test the battery. In the future, they hope to increase the battery’s power, shrink its size and try with various other materials. Kwon said that battery could be thinner than the thickness of human hair.

1.Which of the following is true of Jae Kwon?

A. He teaches chemistry at MU.

B. He is working on a nuclear energy source.

C. He developed a chemical battery.

D. He made a breakthrough in computer engineering.

2.Jae Kwon gave examples in Paragraph 4_________.

A. to introduce nuclear batteries can be safely used

B. to show chemical batteries are widely applied

C. to introduce various energy sources

D. to describe a nuclear-powered system

3.Liquid semiconductor is used to _________.

A. get rid of the radioactive waste

B. test the power of nuclear batteries.

C. reduce the damage to lattice structure.

D. decrease the size of nuclear batteries

More than 10 years ago,it was difficult to buy a tasty pineapple.The fruits that made it to the UK were green on the outside and,more often than not,hard with an unpleasant taste within.Then in 1966,the Del Monte Gold pineapple produced in Hawaii first hit our shelves.

The new type of pineapple looked more yellowy-gold than green.It was slightly softer on the outside and had a lot of juice inside.But the most important thing about this new type of pineapple was that it was twice as sweet as the hit-and-miss pineapples we had known.In no time,the Del Monte Gold took the market by storm,rapidly becoming the world's best-selling pineapple variety,and delivering natural levels of sweetness in the mouth,up until then only found in tinned pineapple.

In nutrition it was all good news too.This nice tasting pineapple contained four times more vitamin C than the old green variety.Nutritionists said that it was not only full of vitamins,but also good against some diseases.People were understandably eager to be able to buy this wonderful fruit.The new type of pineapple was selling fast9 and the Del Monte Gold pineapple rapidly became a fixture in the shopping basket of the healthy eater.

Seeing the growing market for its winning pineapple,Del Monte tried to keep market to itself.But other fruit companies developed similar pineapples.Del Monte turned to law for help,but failed.Those companies argued successfully that Del Monte's attempts to keep the golden pineapple for itself were just a way to knock them out the market.

1.We learn from the text that the new type at pineapple is .

A. green outside and sweet inside

B. a little soft outside and sweet inside

C. yellowy-gold outside and hard inside

D. good-looking outside and soft inside

2.Why was the new type of pineapple selling well?

A. Because it was rich in nutrition and tasted nice.

B. Because it was less sweet and good for health.

C. Because it was developed by Del Monte.

D. Because it was used as medicine.

3.The underlined word "fixture" in Paragraph 3 probably refers to something .

A. that people enjoy eating

B. that people use as a gift

C. that is always present

D. that is difficult to get

4.We learn from the last paragraph that Del Monte .

A. slowed other companies to develop pineapples

B. succeeded in keeping the pineapple for itself

C. tried hard to control the pineapple market

D. planned to help the other companies

The weather. It's always a talking-point in Britain. Why is that? Is it something strange about British people? Well it's nice to think that a lot of British people are eccentric(古怪), I mean, the place is famous for it. But really, it's the weather that's the point of note. The UK has some of the most interesting weather in the world.

"Britain does not have a CLIMATE. It just has WEATHER"

In hot countries most of the indoor places that need to be comfortable are air-conditioned, and in cold countries most of the places that need to be comfortable are properly heated. The UK is the exception, since the weather is often interesting and no one really takes heat and cold seriously. So although the weather can be very cold, very hot, very wet, or just wildly confused, it always takes people by surprise.

When it gets to winter and there is actually some SNOW, it always takes the people by surprise. It is frontpage news, and even a few inches of snow brings the country to a standstill. But then, what happens next is even more surprising and catches the folk off guard completely. And who could possibly have predicted it?! IT MELTS! Flooding! What a surprise!

Then in the summer, it gets very hot. If it had been Thailand or Australia, there'd be no problem. It is supposed to be hot, so, there is air conditioning. But in the UK, just total confusion at the sudden hot weather. Shock, health problems, and despite the fact that the country is considered to be where it always rains, summertime brings drought! But do people have cisterns(水箱) and reserve water tanks? Wouldn't it make sense for people to store rainwater in case of drought? Of course it would, but it is a dependency-culture where people have been trained to be dependent on the state, which then means that in emergency people are stuck! Why is the British weather so strange? It is something to do with the combination of an almost Arctic latitude(纬度) combined with being an island and having the Gulf Stream bringing warm weather from the tropics.

Helpful people in the know on geographical meteorology(气象学) have commented that the general situation with the UK weather is even more complex, as many different things contribute to the changeable weather. As well as the North Atlantic drift, there is the fact that the UK is affected by the following major air masses: the tropical maritime(海的)Gulf Stream, the Polar Maritime air from the North, the Arctic Maritime, the Polar Continental, and the Tropical Continental. There's also fast flowing air in Jet Streams. Air goes around in convection currents in Hadley Cells and in Ferrel Cells. Because the British Isles can get weather coming from hot or cold zones, and from land or sea, a changeable hot/cold wet/dry weather is found.

1.What is the British attitude toward heat and cold?

A. Serious. B. Indifferent.

C. Positive. D. Careful.

2.How do the British feel when they see snow in winter?

A. Excited. B. Frightened.

C. Amazed. D. Disappointed.

3.What happens when the British meet a drought in summer?

A. They have got well-prepared. B. They get water from the river.

C. They always help each other. D. They maybe fall into trouble.

4.What is the passage mainly about?

A. Why weather interests the British. B. Englishmen's attitude to weather.

C. Weather in the United Kingdom. D. What affects the weather in the UK.

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