It's a day to celebrate, a time to educate, and a way to make a difference.Earth Day was first observed on April 22, 1970.The tradition began in the United States and is now an international focal point for people who are concerned about the environment.

　　Imagine a time before the Clean Air Act, the Clean Water Act, the Endangered Species Act,and even the Environmental Protection Agency.Hot topics of the time were industrial pollution, nuclear accidents,oil dependency,pesticides,and a variety of social issues.However,policymakers were not yet acting on many important environmental problems.

　　Earth Day grew out of grassroots action and institutional Support.Student leader Denis Hayes and Wisconsin Senator Gaylord Nelson were two key organizers for the first event.Over 20 million concerned citizens rallied for clean air and water.College students were a major force in the campaign, although participants of all ages were involved.Still, we cannot really credit a handful of individuals for the success of Earth Day.After all, a major message of Earth Day is that every single person has an important role in the environment.

　　(52) The first Earth Day was very successful, inspiring the passage of congressional protection for air, water, and endangered species.Momentum from the demonstration also fueled the formation of the Environmental Protection Agency.

　　Thirty years later, the focus has changed but the urgency remains the same.Due to increasing amounts of scientific evidence that fossil fuels are changing the global climate, the theme for Earth Day 2000 is Clean Energy.The four major goals of Earth Day 2000 are clean cam, clean power,clean air, and clean investments.

　　26.April 22nd, 2000 is the __________ years'anniversary of the Earth Day.

　　A.30th

　　B.20th

　　C.10th

　　D.100th

　　答案：A

　　提問的是2000年4月22日是地球日的多少周年紀(jì)念日。回答用數(shù)字表示的細(xì)節(jié)時(shí)，需要進(jìn)行簡(jiǎn)單計(jì)算。從原文的一段我們可以知道，地球日最早1970年4月22日在美國(guó)開始，剛好是30年紀(jì)念日。所以，選項(xiàng)A為本題的答案。

　　27.__________ originated the Earth Day.

　　A.College students

　　B.Policy makers

　　C.Ordinary people

　　D.Denis Hayes

　　答案：C

　　這個(gè)問題答案需在三段里找出。該段一句告訴我們，地球日是群眾自發(fā)活動(dòng)，并由社會(huì)機(jī)構(gòu)支持的。學(xué)生領(lǐng)袖Denis Hayes和威斯康星州議員Gaylord Nelson是一次活動(dòng)的主要組織者;200多萬市民聚集起來，呼吁干凈的水源和空氣。各個(gè)年齡階層的人都參加了這次集會(huì)，大學(xué)生在這次活動(dòng)中是主要力量，但是我們不能確切地說地球日的成功歸為哪一部分人。由這一段話的意思我們可以得知，地球日的創(chuàng)建是集體的結(jié)果，并不是由哪一個(gè)人創(chuàng)建的。所以，正確答案是C。

　　28.Which of the following is the immediate effect of the first Earth Day?

　　A.The Environmental Protection Agency was founded

　　B.Congressional Protection for water was passed

　　C.There are more demonstrations followed

　　D.Denis Hayer published his Clean Energy Now

　　答案：B

　　本題的答案含在文章的四段中。這段話的意思是一個(gè)地球日極為成功，國(guó)會(huì)因此而通過了對(duì)空氣，水，受害生物保護(hù)法;游行的勢(shì)頭也推動(dòng)了環(huán)保機(jī)構(gòu)的成立。由此可見，它直接影響的是B(國(guó)會(huì)通過了水保護(hù)法);因此，答案為B。

　　29.Which of the following is NOT the goal of Earth Day 2000?

　　A.Clean air

　　B.Clean water

　　C.Clean automobiles

　　D.Clean investment

　　答案：B

　　本題提問的是以下哪一個(gè)不是2000年地球日的目標(biāo)。所給的四個(gè)答案分別為：A(空氣凈化)，B(水凈化)，C(汽車凈化)和D(投資凈化)。通過原文最后一句我們可以知道，2000年地球日的目標(biāo)是汽車凈化，能源凈化，空氣凈化和投資凈化。由此可知，只有選項(xiàng)B不屬于其內(nèi)容。所以,B為本題答案。

　　30.Earth Day is a day to__________.

　　A.increase fossil fuels

　　B.purify the w~iter

　　C.solve social issues

　　D.protect environment

　　答案：D