B　解析：细节理解题。根据第五段中的"Pass the message of simple ways to save the environment on to kids.Starting with kids is a good way of teaching the message early in their live"可知，保护环境要从娃娃抓起，把环保意识和方法教给孩子们，故B项正确。

3．Which of the following is NOT true?

A．The more people do their part, the greener the environment will be.

B．Selling what you don't want any more is a kind of recycling.

C．To protect the environment may help you save some money.

D．Your bad habits for the environment are a valuable contribution.

D　解析：细节理解题。根据第二段中的"We should realize that what we do does count..."可知，我们的不良行为加速了环境问题，故D项正确。

4．The passage is mainly about____________．

A．the use of garbage dustbins

B．how to save water and electricity

C．how to save the environment

D．our current environmental problems

C　解析：主旨大意题。通读全文可知，本文主要介绍了一些如何保护环境的方法，故C项正确。

完形填空

　　To celebrate the end of our exams, my friends and I went to a fast food restaurant.We __1__ hamburgers and Coca Cola at the counter.When our __2__ came，I started walking towards an empty table.By bad luck, my purse strap(带子) got __3__ on a chair and the tray(托盘) that I was holding slipped __4__ my hands and went flying in the air.The tray, and its contents，__5__ on a man who was just about to __6__ a bite of his sandwich.I stared, greatly __7__， as the drinks soaked(浸湿) his white shirt.Then I __8__ my eyes and prepared myself for his burst of __9__．Instead, he said"It's OK."to __10__ me before he disappeared into washroom.Still shaky and unsure __11__ to do next，my friends and I went to a table and sat there, trying our best to look __12__．A moment later, the man came out of the washroom and __13__ our table.My heart almost stopped __14__．I thought he was going to ask for my father' s __15__ and call him.To my surprise, he merely smiled at us, handed us some cash and said，"__16__ yourselves new hamburgers."He then walked __17__ without even finishing his food.He could have made what was already an uncomfortable situation worse，__18__ he chose a different way and gave us a reason to believe that there is still __19__ in this world.I'll never __20__ his actions.

【解题导语】　作者讲述了自己在快餐店吃饭时发生的一件难忘的事：作者的汉堡和可乐洒了，弄脏了别人的衣服，不但没有被责骂，对方反而给作者钱让他再买一份。