问题 填空题

白色污染主要指由______和______组成的泡沫塑料制品对环境造成的污染.解决的最好办法是______.

答案

白色污染主要指由聚苯乙烯、聚乙烯组成的泡沫塑料制品对环境造成的污染;减少使用不必要的塑料制品,如用布袋代替塑料袋等;重复使用某些塑料制品,如塑料袋,塑料盒等;回收各种废弃塑料等能减少白色污染,但最好的解决方法是使用一些新型的可降解塑料,如生物降解塑料和光降解塑料等,使之降解变成二氧化碳和水.

故答案为:聚苯乙烯,聚乙烯;使用一些新型的可降解塑料,如生物降解塑料和光降解塑料等,使之降解变成二氧化碳和水.

单项选择题
阅读理解

阅读理解。

    Someday a stranger will read your email without your permission or scan the websites you've

visited. Or perhaps someone will casually glance through your credit card purchases or cell phone

bills to find out your shopping preferences or calling habits.

    In fact, it's likely some of these things have already happened to you. Who would watch you

without your permission? It might be a girlfriend, a marketing company, a boss, a policeman or a

criminal. Whoever it is, they will see you in a way you never intended to be seen-the 21st century

equal to being caught naked(裸露的).

    Psychologists tell us boundaries are healthy, though it's important to reveal(透露) yourself to

friends, family and lovers in stages, at appropriate times. Actually few boundaries remain.

The digital breadcrumbs(面包屑) you leave everywhere make it easy for strangers to reconstruct

who you are, where you are and what you like. In some cases, a simple Google search can reveal

what you think, like it or not, increasingly we live_in_a world where you simply cannot keep a secret.

    The key question is:Does that matter? For many Americans, the answer apparently is "no".

    When opinion polls ask Americans about privacy, most say they are concerned about losing it.

A survey found a majority of people are pessimistic about privacy, with 60 percent of respondents

saying they feel their privacy is "slipping away, and that bothers me".

    But people say one thing and do another.  Only a small part of Americans change any  behaviors

in an effort to preserve their privacy. Few people turn down a discount at tollbooths(收费亭) to avoid

using the EZPass system that can track(跟踪) automobile movements. And few turn down supermarket

loyalty cards. Privacy economist Alessandro Acquits has run a series of tests that reveal people will

submit personal information like Social Security numbers just to get their hands on a pitiful 50centsoff

coupon(优惠券).

     But privacy does matter-at least sometimes. It's like health; when you have it, you don't notice it.

     Only when it's gone do you wish you'd done more to protect it.

1. What would psychologists advise on the relationships between friends?

A. There should be a distance even between friends.

B. There should be fewer quarrels between friends.

C. Friends should always be faithful to each other.

D. Friends should open their hearts to each other.

2. Why does the author say "we live in a world where you simply cannot keep a secret"?

A. There are always people who are curious about others' affairs.

B. Many search engines profit by revealing people's identities.

C. People leave traces around when using modern technology.

D. Modern society has finally developed into an open society.

3. What do most Americans do with regard to privacy protection?

A. They change behaviors that might disclose their identity.

B. They talk a lot but hardly do anything about it.

C. They rely more and more on electronic equipment.

D. They use various loyalty cards for business deals.

4. According to the passage, privacy is like health in that________.

A. its importance is rarely understood

B. it is something that can easily be lost

C. people will make every effort to keep it

D. people don't treasure it until they lose it