题目内容
The radar sets ______ (run)for quite a long time without any trouble. |
have been running |
One morning Mrs Smith was driving home after she had done shopping. When she drove near a rubbish dump, she noticed a microwave oven(微波炉) not far from the side of the road.“John is a good electrician!”she said to herself.“Perhaps he can repair this. I'll take it home and let him try.”She picked up the oven and put it in the boot of her car. Then she drove on happily. A few kilometers later, she heard the siren (警报器)of a police car behind her. She looked in the driving mirror and saw a policeman waving to her to tell her to pull over and stop.
Mrs Smith was very puzzled. She slowed down at the side of the road. A traffic policeman got out of the police car and walked up to her.
“Can I see your driving license and insurance certificate(保险证),please? ”he asked her. He copied down details of her name, address and the number of the car.“What's wrong, officer?” Mrs Smith asked. The policeman did not reply. He looked in the car and then at the back. “Open the boot, please.”he said to Mrs Smith.
Mrs Smith was still puzzled. She opened the boot and pointed to the microwave oven. "I found this old microwave oven a few minutes ago," she said. "I'm just taking it home to see if my husband can repair it." The policeman stared at her for a moment to see if she was telling the truth. "That's not a microwave oven." he said at last. "That's our radar set(雷达装置). It was the start of a speed trap. Do you mind if we have it back?" Mrs Smith's face turned red. "Oh", she said," I'm very sorry. I wouldn't have touched it if I'd known what it was."
【小题1】Why did Mrs Smith pick up the police's radar set and want to take it home?
A.She had no microwave oven and wanted one. |
B.She took it for a waste microwave oven. |
C.She saw nobody was looking. |
D.She just wanted to steal it. |
A.the outer covering for the foot |
B.the outer covering for the car |
C.the place for luggage at the back of a car |
D.the place for metal equipment for protection |
a. The policeman wrote down Mrs Smith's name, address and the car number.
b. Mrs Smith picked up a radar set and put it in the boot of her car.
c. The policeman took back the radar set.
d. Mrs Smith went shopping.
e. A policeman signed Mrs Smith to stop her car.
f. The policeman found the radar set in the boot of Mrs Smith's car.
A.b,d,e,f,c,a | B.d,b,e,f,c,a | C.b,d,e,a,f,c | D.d,b,e,a,f,c |
Directions: Read the following text and choose the most suitable heading from A—F for each paragraph. There is one extra heading which you do not need.
A. Forecasting Research B. Well-known Weather Forecasters C. Severe Weather Events D. Weather Forecasting E. The Forecasting Process F. Historical Background |
The task of predicting the weather that will be observed at a future time is called weather forecasting. As one of the primary objectives of the science of meteorology, weather forecasting has depended critically on the scientific and technological advances in meteorology that have taken place since the latter half of the 19th century.
【小题2】
Throughout most of history, forecasting efforts at any given site depended solely on observations that could be made at the site. With the development of the telegraph in the mid-1800s, weather forecasters were able to obtain observations from many distant locations within a few hours of the collection of such data. Weather forecasting was revolutionized in the 1920s by the work of a group of Norwegian scientists. This group provided a consistent and empirically based description of atmospheric circulation systems. Current weather-forecasting techniques were initiated by the theoretical work of American meteorologist Jule Charney in developing numerical weather prediction. Experimental numerical forecasts in 1950 proved so fruitful that they were soon adopted on a practical basis. Since then, computerized systems based on numerical models have become a central part of weather forecasting.
【小题3】
The process of making a weather forecast can be separated into three steps: observation and analysis, extrapolation to find the future state of the atmosphere, and prediction of particular variables. The standard extrapolation technique is to assume that weather features will continue to move as they have been moving. In some cases the third step simply consists of noting the results of extrapolation, but actual prediction usually involves considerable efforts beyond this.
【小题4】
Great attention is paid to weather forecasts during times of severe events (blizzard, hurricane and typhoon, tornado), and so forth. Accordingly, the National Weather Service (NWS) commits significant resources to the forecast of such events. Blizzards or strong extra-tropical cycles are handled through the usual forecast information channels, with the local NWS office issuing special advisories as appropriate.
【小题5】
A number of new observing systems are being developed for forecasting purposes. These include the Next-Generation Radar digital weather radar, which is intended to detect motions towards or away from the radar installation. In addition, automated systems are being developed for taking observations at surface stations and on board buoys, ships, and aircraft. The communications, processing, and display systems intended to govern this torrent of further data are still being elaborated.