The airplane ________ into the clouds.

Nobody but a young woman__________ the airplane crash．

A.endure

B.rejected

C.survived

D.lived

The airplane arrived one hour behind ______.

A．timetable

B．plan

C．date

D．schedule

A.2个

B.3个

C.4个

D.5个

A.Daily repairs keep the airplane safe

B.Daily repairs can bring down the maintenance cost

C.Daily repairs are necessary

uses solar power C．it takes offand lands vertically D．it can land on water

mmercial airliners travel faster than sound is the difficult problem of sonic boom (声震) , the explosive sound generated when an object moves through the air at supersonic speed(超音速).

A sound is a pressure disturbance: a sonic boom, like other explosive sounds, is the result of an abrupt change in pressure. An airplane in subsonic flight produces weak changed in pressure, but because these disturbances travel at the speed of sound, they move faster than the airplane and stay in front of it. In effect, these disturbances warn the air to get out of the way, and the an does just jet, however, gets ahead of its own pressure disturbances. Consequently a wave of suddenly com pressed air--a shock wave--builds up and is thrown off like the wave ;hat spreads from the bow of a speedboat.

Can sonic booms be eliminated？ The answer is a categorical negative--they are an innerent(内在的) part of supersonic flight--but the sonic boom probably can be reduced; government and private research is now under way to improve understanding of the sonic boom. If and when the booms can be reduced to tolerable levels, commercial supersonic transports can come rata service.

Before commercial airliners travel faster than sound, problems must 0e solved regarding ______.

A．design

B．Construction

C．operation

D．all of the above

Passage One

Every morning, kids from a local high school are working hard. They are making and selling special coffee at a coffee cafe. They are also making a lot of money.

These students can make up to twelve hundred dollars a day. They are selling their special coffee to airplane passengers. After the students get paid, the rest of the money goes to helping a local youth project.

These high school students use a space in the Oakland airport. It is usually very crowded. Many people who fly on the planes like to drink the special coffee.

One customer thinks that the coffee costs a lot but it is good and worth it. Most customers are pleasant but some are unhappy. They do not like it if the coffee cafe is not open for business.

The students earn $ 6.10 an hour plus tips. They also get school credit while they learn how to run a business. Many of the students enjoy the work although it took some time 1o learn how to do it.

They have to learn how to steam milk, load the pots, and add flavor. It takes some skill and sometimes

mistakes are made. The most common mistake is forgetting to add the coffee.

36. Based on the passage, it seems that the purpose of the cafe is to______.

A. learn a skill

B. help a youth project

C. do business

D. earn school credit

How to Be a Successful Businessperson

Have you ever wondered why some people are successful in business and others are not？ Here's astory about one successful businessperson. He started out washing dishes and today he owns 168 res-taurants.

Zubair Kazi was born in Bhatkal,a small town in southwest India. His dream was to be an airplanepilot,and when he was 16 years old,he learned to fly a small plane.

At the age of 23 and with just a little money in his pocket, Mr. Kazi moved to the United States.He hoped to get a job in the airplane industry in California. Instead, he ended up working for a compa-ny that rented cars.

While Mr. Kazi was working at the car rental(租赁的)company,he frequently ate at a nearby KFCrestaurant. To save money on food,he decided to get a job with KFC. For two months,he worked as acook's assistant. His job was to clean the kitchen and help the cook. "I didn't like it,"Mr,Kazi says,"but I always did the best I could. "

One day, Mr. Kazi's two co-workers failed to come to work. That day,Mr. Kazi did the work of allthree people in the kitchen. This really impressed the owners of the restaurant. A few months later,the owners needed a manager for a new restaurant. They gave the job to Mr. Kazi. He worked hard asthe manager and soon the restaurant was making a profit.

A few years later,Mr. Kazi heard about a restaurant that was losing money. The restaurant wasdirty inside and the food was terrible. Mr. Kazi borrowed money from a bank and bought the restau-rant. For the first six months,Mr. Kazi worked in the restaurant from 8 a. m. t0 10 p. m. ,seven days aweek. He and his wife cleaned up the restaurant,remodeled the front of the building,and improved thecooking. They also tried hard to please the customers. If someone had to wait more than ten minutesfor their food, Mrs. Kazi gave them a free soda. Before long the restaurant was making a profit.

A year later, Mr. Kazi sold his restaurant for a profit. With the money he earned, he bought threemore restaurants that were losing money. Again, he cleaned them up,improved the food,and retrainedthe employees. Before long these restaurants were making a profit,too.

Today Mr. Kazi owns 168 restaurants,but he isn't planning to stop there. He's looking for morepoorly managed restaurants to buy. "I love it when I go to buy a restaurant and find it's a mess, "Mr.Kazi says. "The only way it can go is up. "

When Mr. Kazi was young, his dream was to

A.sell cars

B.own a restaurant

C.become a good cook

D.be an airplane pilot

根据以下内容回答题：

A volcanic eruption in Iceland has sent ash across northern Europe．Airlines have stopped or changed the flights across the Atlantic Ocean，leaving hundreds of passengers stuck in air-ports．

Grimsvoto is oDe of the largest and most active volcanoes in Europe．What makes Grimsvoto different is that it lies under a huge glacier(冰川)of ice up to 12 meters thick．The hot volcano heats up the ice above it，which then forms a layer of water between the glacier and the volcano．This layer of water puts pressure on the volcano，keeping it stable．As the water flows out from under the glacier，the pressure lifts．The lava(岩浆)from the volcano then comes up to the surface．This is exactly what happened today．

Now．airlines have to make changes to their flights SO as not to fly through the clouds of volcanic as．h．According to．KLM，one of Europe’s biggest airlines，airplanes cannot go under the cloud or over it．Going through the cloud can result in ash getting stuck in the airplane’s engines，causing damage to the plane．

The eruption has also caused problems for animals in Iceland．The volcano left ash and sharp，glass-like rocks all over the countryside．Farmers are keeping their animals inside to stop them from eating ash—covered grass or the sharp objects．

What makes Grimsvoto different from other volcanoes？ 查看材料

A.It is below-ice．

B.It lies under the sea．

C.It is the largest volcano．

D.Its lava affects the airlines．

or many young students, found a new study. The finding adds to growing evidence that classroom noises【C1】______ with learning. Plenty of studies have demonstrated the distracting【C2】______of noise in the classroom. In louder rooms, kids have more trouble hearing the teacher and become easily distracted,【C3】______when they are reading to themselves. Schools【C4】______ airports also report lower test scores than schools that are not affected by airplane noise. In one study, German students started scoring better on reading and vocabulary tests after a nearby airport【C5】______. Researchers were also interested in less【C6】______ sounds like the general buzz of basic mechanical systems. It was【C7】______that kids who spent all day in classrooms with such noises【C8】______ to score lower on standard reading comprehension tests. But math scores didnt【C9】______ with noise levels, possibly because teachers use more【C10】______ when theyre teaching math than when theyre teaching words. 【C11】______, lots of background noise sets kids up for problems. Studies have shown that kids make more noise in louder rooms.【C12】______by the scraping of chairs, the hum of the heating system,【C13】______the voices of other kids competing to be heard, some students【C14】______have a particularly hard time hearing【C15】______ the teacher is saying. And its not that theyre lazy or using noise as an【C16】______. Young brains have a much harder time【C17】______a signal from the background than mature, adult brains do. Along with【C18】______work, the new findings suggest the【C19】______ for enforcement of ANSIs standards. Despite an endless list of budgetary【C20】______, schools might have to put quiet at the top of their to-do lists.

【C1】

A．vibrate

B．interfere

C．increase

D．vanish