We all need a healthy environment, but we produce waste every day and it d______51 harm to our environment. Though we are young, we can still do something to help. In f_______52, even the simplest everyday activities can make a real d_____________53 to the environment. Here are some ideas for you. Remember these three words: reduce, reuse and recycle.

　　　　 Reduce means “use l_____54”. Don’t waste things. This saves money and reduces p__________55 and waste going into the environment.

　　　　 Reuse means “use again”. Use things for as l________56 as possible. When we buy things, make sure that they last a long time. And we should repair them if we can i____________57 of throwing them away and buying news ones.

　　　　 Recycle means “change things i________58 something else.” Although it takes e__________59 to change something into something else, it’s b________60 than　　　 throwing things away or burning them.

50、甚至最简单的日常活动也能对环境产生很大影响。

Even the simplest everyday activities can ________ ____ __________ ____ the

environment.

49、我们每天制造垃圾，而这些垃圾对我们的环境有危害。

　　　　　　 We produce waste every day and it _____ ________ ____ our environment.

48、我们筹钱去帮助那些贫苦地区的孩子。

　　　　 We ________ _____________ to help students in poor areas.

47、扔掉玻璃、纸张、和金属是很浪费的行为。

　　　　　 It’s ___________ to __________ __________ paper, glass and metal.

46、我们谨慎地对待环境。

　　　　 We must _______　 ___________　 _________ the ______________.

Some people say they have an answer to the problems of car crowding and pollution. In many cities, hundreds of people ride bikes to work every day. In New York City, some bike riders have even　 21　 a group: Bike for a Better City. They say if 22_ people rode bikes to work, there would be fewer cars and less dirty air.

　　　　 For several years this group has tried to get help for bike riders. They want to have special roads for bikes only, because when bike riders must use the same roads 23　 cars, there may be accidents. Bike for a Better City feels if there were bike roads, more people would use bikes.

　　　　 But　 24　 bike roads have been ready yet. Not everyone thinks it is a goo25　 . Divers don’t like it, and some shop owners don’t, 26 __. And most people live 27　 far from the city to travel by bike. Still, 28_has been done about it. On Saturdays and Sundays, the largest open park in New York is 　29　 to cars, and the roads may be used by bikes only, but the group still says this is not enough and goes on fighting　 30　 bike roads.

(　 ) 21. A. found　 　 　　B. founded　 　　　　　 C. made　　　 　　　 　D. looked for

(　 ) 22. A. fewer　 　 　　B. less　　　 　 C. many　　　　 D. more

(　 ) 23. A. as　　 　　　　　　 　　B. like　　　　 　　 C. besides　　　　 D. on

(　 ) 24. A. no　　 　　 　　B. only　　　　 　　 C. some　　　　　 D. on

(　 ) 25. A. hope　 　 　　B. way　　　 C. some　　　 　　 　D. idea

(　 ) 26. A. so　　 　 　　B. both　　　　 C. neither　　　　 D. either

(　 ) 27. A. very　　　　 B. quite　　　 　　 C. too　　　　 　　 　D. so

(　 ) 28. A. everything 　　 B. something　　 C. anything　　　 D. nothing

(　 ) 29. A. closed　 　 　　B. open　　　 　　　 C. opening　　　 D. closing

(　 ) 30.A. get　　 　　　　　 B. to get　　　 　　 C. ask　　　　　 D. to ask