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积极交往,多交朋友,就是要交学习成绩好的朋友。[ ]

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2008年年初,在夏威夷海岸与北美洲之间惊现一块由漂浮的垃圾聚集而成的“太平洋大板块”.这块可被称为世界“第七大洲”的“垃圾洲”由350万吨塑料垃圾聚集而成,面积达343万平方公里,最大厚度可达30米.这再次引起人们对海洋污染问题的关注.

专家们警告:“垃圾板块”给海洋生物造成的损害将无法弥补,这些塑料制品不能被生物降解(其平均寿命超过500年).随着时间的推移,它们只能被分解成越来越小的碎块,而分子结构却丝毫没有改变.于是就出现了大量的塑料“沙子”,从表面上看,似动物的食物,而这些无法被消化、难以排泄的塑料最终将导致鱼类和海鸟因营养不良而死亡.

另外,这些塑料颗粒还能像海绵一样吸附高于正常 含量数百万倍的毒素,其连锁反应可通过食物链扩大、据绿色和平组织统计,至少有267种海洋生物受到这种“侵害”的严重影响.

(1)文中提到“这些塑料制品不能被生物降解”,这里的“生物”主要指______.

A、像海鸥这样的海鸟               B、像鲨鱼这样的海洋鱼类

C、细菌、真菌等这样的微生物       D、可以接触这些塑料制品的任何一种生物

(2)浩瀚的海洋拥有丰富的自然资源,生活着20多万种不同生物,其中鱼类就有2万多种,这些鱼类为人类提供了20%以上的蛋白质.蛋白质是人体七大营养素之一,它与另两类营养素并称人类食物中的三大供能物质.他们是______.

A、糖类、维生素                   B、脂肪、无机盐

C、脂肪、糖类                     D、无机盐、维生素

(3)海洋污染,已经成为人类无法承受之痛.在以下这些做法中,对保护海洋环境有积极意义的是______.(提醒:此题多选,请选出全部正确选项)

A、外出购物时尽量使用环保布袋,少用或不用塑料袋

B、在小溪、河流、湖泊和海滩游玩时,带走自己的生活垃圾

C、善待海洋生物,不食用海洋濒危动物,少买或不买珊瑚制品

D、对海洋鱼类要限制捕捞,规定休渔期,维护海洋生态平衡

E、着力治理工业“三废”,大力普及生活污水处理工程

(4)紧密结合短文内容,请你谈一点你对人类和环境关系的认识:______.

阅读理解

阅读理解。

    Parents often believe that they have a good relationship with their teenagers (青少年). But last summer,

Joanna and Henry noticed a change in their elder son: suddenly he seemed to be talking far more to his friends

than to his parents. "The door to his room is always shut." Joanns noted.

    Tina and Mark noticed similar changes in their 14-year-old daughter. "She used to cuddle up (蜷伏) with

me on the sofa and talk," said Mark. "Now we joke that she does this only when she wants something,

Sometimes she wants to be treated like a little girl and sometimes like a young lady. The problem is figuring

out which time is which."  

    Before age 11, children like to tell their parents what's on their minds. "In fact, parents are first on the list."

said Michael Riera, author of Uncommon Sense for Parents with Teenagers. "This completely changes during

the teen years." Riera explained. "They talk to their friends first, then maybe their teachers, and their parents

last."

    Parents who know what's going on in their teenagers'lives are in the best position to help them. To break

down the wall of silence, parents should create chances to understand what their children want to say, and try

to find ways to talk and write to them. And they must give their children a mental break, for children also need

freedom, though young. Another thing parents should remember is that to be a friend, not a manager, with

their children is a better way to know them.

1. "The door to his room is always shut" suggests that the son _____.

A. is always busy with his studies   

B. doesn't want to be disturbed (打扰)   

C. keeps himself away from his parents   

D. begins to dislike his parents

2. What troubles Tina and Mark most is that _____.

A. their daughter isn't as lovely as before   

B. they can't read their daughter's mind exactly (确切地)   

C. they don't know what to say to their daughter   

D. their daughter talks with them only when she needs help

3. Which of the following best explains "the wall of silence" in the last paragraph?

A. Teenagers talk a lot with their friends.   

B. Teenagers do not want to understand their parents.   

C. Teenagers do not talk much with their parents.   

D. Teenagers talk little about their own lives.

4. What can be learned from the passage?

A. Parents are unhappy with their growing children.   

B. Parents have suitable ways to talk with their teenagers.   

C. Parents should be patient with their silent teenagers.   

D. Parents should try to understand their teenagers.