B) It can package food.

　　C) It makes cars run faster.

　　D) It gives information to the drivers.Passage Two

　　29.

　　A) There are 250 million plants eaten byinsects.

　　B) There are fewer plants than 250 millionyears ago.

　　C) They have their way of guarding againstinsects.

　　D) They have a better immune system thanbefore.

　　30.

　　A) Using less insecticide.

　　B) Giving the plants up.

　　C) Spraying crops frequently.

　　D) Trying other insecticide.

　　31.

　　A)Changing the way of spraying crops.

　　B) Buying some outdoor insect lamps.

　　C) Using a combination of threeinsecticide.

　　D) Trying to attract new insects onto thecrops. Passage Three

　　32.

　　A) They are supported by the localgovernment.

　　B) They are named after the cities wherethey live.

　　C) Their players gathered from all over thecountry.

　　D) They play professional basketball gamesin November only..

　　33.

　　A) During the summer months.

　　B) During the spring months.

　　C) During the winter months.

　　D) During the autumn months.

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