Rachel Carson，a wellknown nature author in America，was happiest writing about the strength and stability of natural systems.Her books mainly described the inter connectedness of nature and all living things.
Completing Silent Spring took Carson four years.First published in The New Yorker in June 1962，the book alarmed readers across America.It described how DDT entered the food chain and accumulated (堆积) in the fatty tissues of animals，including human beings，and caused cancer and genetic damage.
Carson begins by describing exactly these effects in the first chapter，creating strong images and drawing the readers in.As the book continues，she gives various examples of how insecticides(杀虫剂) are not only unsuccessful，but actually very costly and damaging.She also explains about the biological controls which are less expensive and much more efficient.
A single application on a crop，she wrote，killed insects for weeks and months，and not only the targeted insects but countless more，and remained poisonous in the environment even after it was washed out by rainwater.Carson concluded that DDT and other pesticides had definitely harmed birds and animals and had destroyed the entire world's food supply.The book's most famous chapter，A Fable for Tomorrow，described a nameless American town where all life—from fish to birds to apple blossoms to human children—had been “silenced” by the harmful effects of DDT.
The most important effect of Silent Spring，though，was a new public awareness that nature was so easily destroyed by human intervention(干预)．Rachel Carson had made a brave proposal：that，at times，technological progress is so basically at odds with(与……不一致) natural processes that it must be prevented.
1.What are Rachel Carson's books mainly concerned about?
A．The relationship between man and nature.
B．The balance of natural systems.
C．The interconnection of nature and living things.
D．The pollution of the environment.
2.According to the text，Silent Spring________.
A．didn't draw the readers' attention when first published
B．mainly describes people's quiet lives in an American town
C．effectively tells people how to keep the balance of nature
D．showed the harmful effects of DDT on nature
3.Rachel Carson thinks that the more efficient way to kill insects is to use ________.
A．DDT
B．human controls
C．biological controls
D．technical progress
4.The publication of Silent Spring makes people ________.
A．understand the author's outstanding writing talent
B．realize the importance of technical progress
C．aware of the necessity of environmental protection
D．rethink the harmful effects of developing industry
One of the qualities that most people admire in others is the willingness to admit one's mistakes. It is extremely hard sometimes to say a simple thing like “I was wrong about that，”and it is even harder to say，“I was wrong，and you were right about that.”
I had an experience recently with someone admitting to me that he had made a mistake fifteen years ago. He told me he had been the manager of a certain grocery store in the neighborhood where I grew up，and he asked me if I remembered the egg cartons (箱子)．Then he related an incident and I began to remember clearly the incident he was describing.
I was about eight years old at the time，and I had gone into the store with my mother to do the weekly grocery shopping. On that day，I must have found my way to the dairy (乳品的) food department where the incident took place.
There must have been a special sale on eggs that day because there was an impressive display of eggs in dozen and halfdozen cartons. The cartons were stacked(堆放) three or four feet high.I must have stopped in front of a display to admire the stacks. Just then a woman came by pushing her grocery cart and knocked off the stacks of cartons. For some reason，I decided it was up to me to put the display back together，so I went to work.
The manager heard the noise and came rushing over to see what had happened.When he appeared，I was on my knees examining some of the cartons to see if any of the eggs were broken，but to him it looked as though I was the criminal.He severely scolded me and wanted me to pay for any broken eggs.I protested(抗议)my innocence and tried to explain，but it did no good. Even though I quickly forgot all about the incident，obviously the manager did not.
1.The author was ________ when he wrote this article.
A．about 8 B．about 18
C．about 23 D．about 15
2.Who should have been blamed for knocking off the stacks of cartons?
A．The author. B．The manager.
C．The woman. D．The author's mother.
3.When the manager scolded him，the author ________.
A．was frightened and cried
B．felt the manager was right
C．did not say anything
D．tried to explain
4.It can be inferred that the author ________.
A．regrets arguing with the manager for what he didn't do
B．has forgiven the manager for what he did to him fifteen years ago
C．would like to tell people never to be fooled by an egg sale
D．expects the woman to say sorry to him for the mistake she made
What would life be like without television？Would you spend more time __ _，reading，or studying？Well，now it's your chance to turn off your TV and ___ __！TVTurnoff Week is here.
The goal of TVTurnoff Week is to let people leave their TV sets ____ ___ and participate in activities ___ __ drawing to biking.The event was founded by TVTurnoff Network，a nonprofit organization which started the event in 1995.In the ____ __，only a few thousand people took part. Last year more than 7.6 million people participated，__ ___ people in every state in America and in more than 12 other countries！This is the 14th year in which ___ ___are asking people to “turn off the TV and turn on ___ __.”
According to the TVTurnoff Network，the average ____ _ in the US spend ___ __ time in front of the TV (about 1,023 hours per year) than they do in school (about 900 hours per year)．Too much TV ___ ___ has made many kids grow fat.___ __，in 2001's TVTurnoff Week, US Surgeon General David Satcher said，“We are raising the most __ ___ generation of youngsters in American history. This week is about saving lives.”
Over the years，studies have shown that watching a lot of TV ____ ___ poor eating habits，too little exercise，and violence. Frank Vespe of the TVTurnoff Network said that turning off the TV “is or ____ __，part of a healthy lifestyle”．
“One of the great lessons of ____ ___TVTurnoff Week is the realization that ___ __ I turn on the TV，I'm deciding not to do something else，”Vespe said.
TVTurnoff Week seems to be making a ____ ___.Recent US Census(人口普查) data____ ___ that about 72 percent of kids under 12 have a limit on their TV time. That's ____ ___ about 63 percent ten years ago.
1.A.drinking B．sleeping C．washing D．playing outside
2.A.find out B．go out C．look out D．keep out
3.A.away B．off C．on D．beside
4.A.like B．as C．from D．such as
5.A.end B．event C．beginning D．total
6.A.besides B．except for C．including D．except
7.A.governments B．parents C．organizers D．businessmen
8.A.the light B．the radio C．life D．the Internet
9.A.grownups B．kids C．clerks D．parents
10.A.less B．enough C．little D．more
11.A.programs B．screen C．hours D．watching
12.A.However B．On the contrary C．In fact D．As a result
13.A.overweight B．overeaten C．overgrown D．overseen
14.A.leads to B．results from C．develops D．keeps away
15.A.will be B．should be C．may be D．could be
16.A.organizing B．taking part in C．participating D．asking for
17.A.wherever B．every day C．every time D．this time
18.A.living B．choice C．difference D．sense
19.A.shows B．says C．reads D．writes
20.A.rising B．down from C．up to D．up from
I used to go camping a lot, so it wasn’t the first time I ______ in a tent.
A. will sleep B. would sleep
C. had slept D. have slept
The song is sung all over the country, ______ it the most popular song this year.
A. made B. having made
C. to make D. making
I was ________ leave ________ I saw him ________ towards me with a bag in his hand.
A．about to；when；run B．about to；when；running
C．to about；when；run D．to about；while；run
