In the United States alone,over 100 million cell-phones are thrown away each year.Cell-phones are part of a growing mountain of electronic waste like computers and personal digital assistants.The electronic waste stream is increasing three times taster than traditional garbage as a whole.

Electronic devices contain valuable metals such as gold and silver.A Swiss study reported that while the weight of electronic goods represented by precious metals was relatively small in comparison to total waste,the concentration（含量）of gold and other precious metals was higher in So-called e-waste than in naturally occurring minerals.

Electronic wastes also contain many poisonous metals.Even when the machines are recycled and the harmful metals removed,the recycling process often is carried out in poor countries,in practically uncontrolled ways which allow many poisonous substances to escape into the environment.

Creating products out of raw materials creates much more waste material,up to 100 times more,than the material contained in the finished products.Consider again the cell-phone,and imagine the mines that produced those metals,the factories needed to make the box and packaging（包装）it came in.Many wastes produced in the producing process are harmful as well.

The U.S Environmental Protection Agency notes that most waste is dangerous in that"the production, distribution,and use of products-as well as management of the resulting waste-all result in greenhouse gas release." Individuals can reduce their contribution by creating less waste at the start-for instance,buying reusable products and recycling.

In many countries the concept of extended producer responsibility is being considered or has been put in place as an incentive（动机）for reducing waste.If producers are required to take back packaging they use to sell their products,would they reduce the packaging in the first place?

Governments' incentive to require producers to take responsibility for the packaging they produce is usually based on money.Why,they ask,should cities or towns be responsible for paying to deal with the bubble wrap（气泡垫）that encased your television?

From the governments' point of view,a primary goal of laws requiring extended producer responsibility is to transfer both the costs and the physical responsibility of waste management from the government and tax-payers back to the producers.

1.By mentioning the Swiss study,the author intends to tell us that         .

A.the weight of e-goods is rather small

B.natural minerals contain more precious metals

C.E-waste deserves to be made good use of

D.the percentage of precious metals is heavy in e-waste

2.The responsibility of e-waste treatment should be extended          .

A.from producers to governments

B.from governments to producers

C.from individuals to distributors

D.from distributors to governments

3.What does the passage mainly talk about?

A.The increase in e-waste. B.The creation of e-waste.

C.The seriousness of e-waste. D.The management of e-waste.

    Even though Danish students have equal access to education, their choice of studies is still influenced by social class. Young people from working class backgrounds are ______by studies with a clear job profile and high income, ______prestige and studies with a strong identity interest young people of parents with university degrees when choosing which studies to ______. This is what researchers from the University of Copenhagen ______in a new study. Students who have chosen to study medicine, architecture, economy and sociology often come from homes where the parents have ________higher education, whereas business studies and pharmacy often ______young people with a working class background. This is ______by a research team from the University of Copenhagen and Aalborg University in a new study.

“There is a ______between the studies chosen by young Danes and their ______background. Even for the young people who have very good grades in their A-level exams, and who could successfully ______admission to a large variety of studies, the parents’ ______of education and social class play an important role in their choice,” says Education Sociologist Jens Peter Thomsen, who is one of the researchers behind the study.

The study “The Educational Strategies of Danish University Students from Professional and Working-Class Backgrounds” is ______60 interviews with Danish students from six different university level study programmes: Medicine, architecture, sociology, economy, pharmacy and business studies.

The young people bring with them the ______they get from their families. If you grow up in a home with parents who are doctors or architects with a strong professional ______, it is an obvious choice to follow the ______path as your parents when you grow up.

“For young people whose parents are university educated, ______such as fame and mastery of expert knowledge are important. They are ______by an educational culture in which you are a diligent student, and where leisure activities are ______to the identity that lies within your studies. These young people have also grown up with ______discussions around the dinner table which also prepare them for their lives as students,” says Jens Peter Thomsen.

He also added, “Young people who come from a working class background, and have good grades have to ______the full range of opportunities they have. But the effort to reach this goal must start early”.

1.A.monitored B.motivated C.motioned D.multiplied

2.A.while B.although C.when D.if

3.A.pursue B.engage C.involve D.conduct

4.A.calculate B.suspect C.conclude D.achieve

5.A.required B.confirmed C.refused D.completed

6.A.subscribes to B.caters to C.sticks to D.appeals to

7.A.inquired B.proved C.extended D.acquired

8.A.connection B.comparison C.difference D.contradiction

9.A.educational B.political C.social D.professional

10.A.balance B.develop C.identify D.seek

11.A.situation B.judgment C.level D.preference

12.A.connected with B.based on C.committed to D.combined with

13.A.resources B.experiences C.finance D.memory

14.A.degree B.identity C.success D.responsibility

15.A.perfect B.usual C.common D.same

16.A.changes B.problems C.factors D.characters

17.A.disturbed B.moved C.puzzled D.attracted

18.A.tied B.accustomed C.transferred D.copied

19.A.practical B.topical C.physical D.medical

20.A.take charge of B.take control of C.take advantage of D.take care of

The stone under her feet rolled, and as she was　　　into the river, she called out for help.

A.being jumped B.jumped C.pulling D.being pulled

_______, his suggestion is not helpful, though it sounds very interesting.

A.Generally speaking B.On the contrary

C.In particular D.To be honest

It was not until she collected enough material_______to create her new novel.

A.did she begin B.when she began

C.that she began D.that did she begin

—Sorry, I broke your wineglass.

—_______You didn’t mean to.

A.Never mind. B.Certainly not!

C.Why not be careful? D.Don’t mention it.

—Let’s go for a picnic this weekend together with our classmates, OK?

—_______. I love getting close to nature.

A.I couldn’t agree more B.That’s all right

C.Out of the question D.I’m afraid not

The_______moment we had looked forward to_______at last.

A.excited; came B.exciting; coming

C.excited; coming D.exciting; came

She was too nervous to speak with so many eyes_______on her.

A.fixing B.fixed C.to be fixed D.were fixed

I think John will make a good monitor, ________ I'd like to vote for him.

A.but B.so

C.or D.for