-The new machines have arrived and are being tested in the workshop．-I'm glad we them in the years ahead．( )A．will be operatingB．have been operatingC．would be operatingD．had been operating 题目和参考答案——青夏教育精英家教网—

8．As the population of the planet increases，so does the number of homes，business，parking lots，schools，airports and roadways．All these structures use electricity and need to be lighted．Humans demand light．They want their homes more comfortable and they want their streets safe．The problem is that researchers are finding that all the light is having a negative effect on humans and wildlife as well．
Less than 10years ago I drove to a thinly populated section of my own，lay down in the middle of the road and watched an attractive meteor shower（流星雨）．If I did that today，I wouldn't be able to see the meteor shower．
Nowadays scientists are finding light pollution can be almost as bad as carbon dioxide （二氧化碳）pollution．One of the saddest parts of light pollution is that most of it is unnecessary and most of the outdoor light that we use is wasted．One only needs to look at a row of street lights to see how much of the lights shines upwards and lights the sky：a total waste of electricity．
Additionally，the production of electricity creates pollution by releasing greenhouse gases．This affects the air we breathe and our quality of life．
Scientists are also studying the effects of light pollution on wildlife．Thousands of birds die each year when they crash into highly lighted buildings，as they become puzzled by the light．It has been long known that tiny baby sea turtles become lost and follow the light on the shore instead of heading towards the sea．
Fortunately，light pollution is one of the easiest sources of pollution that can be corrected without a negative effect．Following some guidelines and a little searching on Google can give you many ideas on how to reduce your contribution to light pollution．

33．According to the passage，the best way to deal with light pollution is toC．
A．Reducing the output of lights
B．Educating people about light pollution
C．Avoiding the use of unnecessary lighting
D．Inventing environmentally-friendly lights
34．What can be inferred from the passage？D
A．Astronauts can't see clearly in space nowadays
B．Global warming results in light pollution in some way
C．We are almost at a loss how to deal with light pollution
D．Some animals use natural light to direct their movements．
35．What will probably be provided following the last paragraph？D
A．Benefits of searching on Google
B．More bad effects of light pollution
C．Helpful tips for suffering the Internet
D．Ways to decrease light pollution．

15．At the beginning of each semester，each student has greatconfidence （信心） in their study．

5．Considering his health，I advised him to an hour or two each day to work out．（　　）

A．

12．There is no denying that mobile phones have the potential to become the most influential media．（=the possibility for development/the existing ability）

9．-Guess what？We've got our visas for a short-term visit to the UK this summer．
-How nice!You ____a different culture then．（　　）

	A．	have experienced		B．	will be experiencing
	C．	have been experiencing		D．	will have experienced

18．I'm going to make progresses with her help．

	A．	will be operating		B．	have been operating
	C．	would be operating		D．	had been operating

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