【推荐1】Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.

A. constituents 　　　B. ultimately 　　　C. exhausts 　　　D. economical 　　　AB. conventional AC. electricity 　　　AD. approximately 　　　BC. contributes 　　　BD. extent 　　　CD. substances ABC. generates

Driving an electric car     1     to the protection of environment, or so the marketing departments of their makers would have you believe. Yet a report which analyzes car emissions presents a rather different picture. A battery-powered car recharged with     2     generated by coal-fired power stations, it found, is likely to be more harmful. It could cause more than three times as many deaths from pollution as a     3     petrol-driven vehicle.

The study was carried out by the University of Minnesota. The researchers estimated how levels of fine particulate matter (细颗粒物) and ground-level ozone — two important     4     of air pollution — would change when a car is powered by different ways.

It was no surprise that electric cars whose batteries were recharged with power from wind, solar or hydro-electric sources came out to be virtually free from harmful     5    . They were estimated to cause 231 deaths over the course of a year, compared with 878 for petrol cars. Electric cars recharged with power from natural gas-fired stations were also a lot less harmful than petrol-driven ones, with 439 deaths. But if those same electric cars were recharged     6     by coal, they would be responsible for over 3,000 deaths.

Biofuels also caused more health problems than petrol. But diesel, which often     7     concern about pollution, is slightly cleaner than petrol. This is because the study assumes for all cars that emission-control technologies will be more widely used, especially particulate filters which have a remarkable effect on cleaning diesel     8    . Diesel cars are also more     9     of fuel than petrol-driven ones.

Overall, the study shows that electric cars are cleaner than those traditional vehicles only if the power used to charge then is also clean. That is hardly a surprise, but the     10     of the difference is. How green electric cars really are, then, will depend mainly on where they are driven. In France, which obtains more than half of its power from nuclear station, electric cars look like a good bet. In China and some other developing countries, where a large amount of electricity is produced from coal, they may not be so environment- friendly as they are marketed.

【推荐2】选用同义词填空
1. The audience enjoyed the play,and started to clap loudly.(applaud/applause)
The audience enjoyed the play and started to_______loudly.
2. Nothing makes me feel better than being in one place,concentrated on a book,a conversation,or music.(absorbed in/obsessed with)
Nothing makes me feel better than being in one place,_______a book.,a conversation,or music.
3. I would like to show how grateful I am to all the volunteers.(great/thankful)
I would like to show how_______I am to all the volunteers.
4. She had hoped the couple would perform a show.(put on/take on)
She had hoped the couple would_______a show.
5. Molly was said to have fought hard and got over her fear of flying.(overcome/go through)
Molly was said to have fought hard and_______her fear of flying.
6. Dr Jones and his colleagues stress exercise in addition to a change in diet.(emphasise/put pressure on)
Dr Jones and his colleagues_______exercise in addition to a change in diet.
7. She once made a brief appearance on television.(simple/short)
She once made a_______appearance on television.
8. The two officers were extremely lucky to avoid serious injury.(escape/encounter)
The two officers were extremely lucky to_______serious injury.
9. It is a drama featuring made-up characters.(fictional/real-life)
It is a drama featuring_______characters.
10. She always interrupts other people's talk at embarrassing moments.(perfect/awkward)
She always interrupts other people's talk at_______moments.

【推荐1】

A. enormous 　　　B. urban 　　　C. freezing 　　　D. narrow 　　　E. equal

1. In the Antarctic, the temperature rarely rises above ________ point.
2. Did you have an/a ________ escape from the tornado?
3. Japan has advanced from a rural, feudal society to an/a ________, industrial power.
4. Not everyone has realized that wildlife has thoughts, feelings, and most importantly, ________rights to survive.
5. The loss of glaciers（冰川） there due to global warming represents an/a ________ threat to agriculture.