题目内容

Prince William took a visit to the Forbidden City on Feb．28, ______ emperors once lived.

A．which B．whose C．where D．when

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China is going green. In order to reduce air pollution and oil shortages, automobile manufacturers have announced their plans to develop hybrid vehicles (混合燃料汽车) for the Chinese market. Toyota's hybrid car Prius will be ready to drive in China this week. Let's have a look at the new car.

Any vehicle is a hybrid when it combines two or more sources of power. Hybrid cars run off a rechargeable battery and gasoline. Hybrid cars have special engines, which are smaller than traditional gasoline engines. They run at 99 percent of their power when the car is cruising (匀速行驶). A specially designed battery motor provides extra power for running up hills or when extra acceleration is needed.

Step into a Prius, and turn on the engine. The first thing you notice is how much quieter it is than a traditional car. At this point, the car's gasoline engine is dormant (休眠). The electric motor will provide power until the car reaches about 24 km/h. If you stay at a low speed, you are effectively driving an electric car, with no gasoline being used, and no waste gas gives off.

The onboard(车载的) computer makes the decision about when to use a gas engine, when to go electric, and when to use a combination of the two. If you go over 24 km/h, when you step on the gas pedal (油门), you are actually telling the computer how fast you want to go.

The electronic motor recharges automatically using a set of batteries. When driving at high speed, the gasoline engine not only powers the car, but also charges the batteries. Any time you use the brake, the electric motor in the wheels will work like a generator and produce electricity to recharge the batteries. As a consequence, the car's batteries will last for around 200,000 miles.

1.The author writes this passage mainly to________.

A. teach people how to drive a hybrid car

B. show how to save their gasoline when driving a car

C. introduce a new kind of "green" car

D. announce plans to develop hybrid vehicles for China

2.The first sentence probably refers to ________.

A. there will be more and more green land in China

B. China has started producing environmentally friendly cars

C. China's new cars are combinations of different green models

D. China is still young and lacking experience

3.What is the most important feature of hybrid cars?

A. They have smaller engines than traditional gasoline ones.

B. They are much quieter than traditional cars.

C. They only use 99 percent of their power to run up hills.

D. They are powered by both a rechargeable battery and gasoline.

Jack ________ have fought with the policeman.

—Yes. If one ________ ask for trouble, it can’t be helped.

A. would; will B. must; may

C. should; must D. need; dare

On two occasions he was accused of stealing money from the company，but in neither case ______ any evidence to support the claims．

A．was there B．there was

C．had there been D．there had been

_____ in charge of two classes made Mrs．Li, head of Senior Grade 3, extremely tired．

A．Leaving

B．Left

C．Being left

D．Having left

Although the test________look like a simple one, great care is needed．

A．may B．must C．should D．need

第一节 基础知识测试(共10小题；每小题1分，满分10分)

(一)根据下列句子所给汉语意思，写出空缺处单词或短语的正确形式(每空一词)

1.The three star hotel offers a friendly ________ (氛围) and personal service.

2.Scientists in different countries, working _________(独立)of each other, have come up with very similar results.

3.It is his _________(难以置信)effort that leads to his magnificent achievements.

4.Give Tom my _________(祝贺) on his promotion.

5.One by one, the applicants left the interviewer’s office with_________(失望的)looks on their faces.

International teams have spent nearly half a year looking for evidence of the missing Malaysian Airlines plane, a search that includes the hunt for the aircraft’s so-called black box, which holds flight data that would likely explain what caused MH370 to move away from its course. But many aviation experts wonder why, in our increasingly networked world, divers are searching the Indian Ocean for a metal box when technology already exists that would enable planes to stream black box data to the ground in the event of an emergency.

Black boxes have been on planes since the late 1950s, and now every commercial aircraft has two: a flight data recorder and a voice recorder. (Although they are referred to as black boxes, they are typically orange in color, making them easier to spot in waters.) Black box recorders are mainly used to investigate the cause of in-flight accidents.

While black boxes are built to survive a crash and long-term submersion(浸没）in water, it can be a real challenge to find the device if a plane has gone down in the ocean. While each box contains a beacon(无线电信标台), the unit only has enough battery power to transmit a signal for 30 days. After the crash of Air France Flight 447 in the Atlantic Ocean in June 2009, it took divers two years to find the black box.

Pierre Jeanniot, a Canadian engineer who helped perfect black box technology about 40 years ago, feels that the device, in its current form, is “obsolete”. He started to question its effectiveness more than a decade ago, after seeing the broken pieces of the black boxes in the 2001 attacks on the World Trade towers in New York. Jeanniot is now on the advisory board of a Toronto-based firm that has built a live-streamed black box system. When a plane experiences an irregular event, the system can send streaming data off the aircraft to one of the satellites and then down to ground-based servers, where the message is interpreted and sent to the airline. It seems necessary that the loss of MH370 and other similar cases wake more people up to the fact that the tools being used at this stage are inadequate for dealing with emergency situations, Jeanniot says. He also estimates that if this technology had been on board the missing Malaysian Airlines flight and live-streaming for the estimated seven hours after the flight first experienced a problem, it would have cost about $3,000.

While there is widespread approval of a live-streamed black box system, most airlines see its cost prohibitive. The airline industry is an industry with small profits, and is reluctant to add costs that will further cut the bottom line.

However, given how much time, money and effort has been spent on the luckless search for MH370, s black box, the cost of operating a live-streaming version seems like a trifle(区区小数)

1.In this passage, the underlined word “obsolete” probably means .

A. out of date B. out of use

C. on the move D. on the increase

2.Which fact is mentioned to support aviation experts’ doubt about the effectiveness of the black box?

A. MH370’s black box holds flight data that might explain what happened to the aircraft.

B. The recorders are actually orange in color though referred to as black boxes.

C. The beacon in the black box has limited battery power to send out a signal for 30 days.

D. It’s necessary for people to wake up to the weaknesses of the black box

3.What’s airlines’ attitude towards the live-streamed black box system?

A. They approve of the system since it may save time, money and effort.

B. They consider using the system as the bottom line of costs.

C. They are reluctant to start the system because it still needs improving.

D. They are unwilling to equip planes with the system as it cuts their profits.

4.From the passage, we can learn that__________.

A. it takes divers one or two years to find the black box after a crash

B. the new system does not live stream black box data for the whole flight

C. Jeanniot changed his view on black box technology when working for a Canadian firm

D. operating a live-streamed black box system costs only three thousand dollars

_____ with shame, the boy lowered his head, ready for the punishment from his dad.

A. Filled B. Filling

C. To fill D. To have filled

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