题目内容

【题目】地球环境人口容量一直是学者讨论的话题,下列关于环境人口容量的叙述正确的是

A.总人口数量是制约环境人口容量的首要因素

B.世界人口总量已超过环境人口容量

C.我国的人口合理容量应控制在16亿左右

D.环境人口容量具有不确定性

【答案】D

【解析】

试题分析:环境人口容量是指在可预见的时期内,利用本地资源及其他资源和智力、技术条件,在保证符合社会文化准则的物质生活水平条件下,一个国家或地区所能持续供养的人口数。影响环境人口容量的首要因素是资源状况,A错。当人口超过环境人口容量,生态系统就会遭到破坏而失去平衡,并最终失去原来的承载力,所以B选项错误。我国的人口合理容量控制在89亿,人口合理容量是按照合理的生活方式,保障健康的生活水平,同时又不妨碍未来人口生活质量的前提下,一个国家或地区最适宜的人口数量,因此C也错误。环境人口容量具有确定性和不确定性,所以D正确。故选D。

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【题目】根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

How to Make Friends

Friendship is a very important human relationship and everyone needs good friends. 1 It offers companionship, improves selfworth and promotes good health. There are times in our lives such as when we have recently moved into a new town, or changed our jobs or schools. Such changes often leave us without a friend. Making new friends comes easy for some people.

But for many of us the process is difficult and requires courage. Below are some helpful suggestions on how to make and keep friends.

2

The first step to making friends is associating with other people. You can go to public places to meet new people. Besides, you will need to make yourself known by becoming an active member of such places.

Start a conversation.

Starting a conversation is the second most important step in making new friends. Do not wait to be spoken to. 3 Being able to make small talk is a very useful skill in relating with other people.

Do things together.

Choosing friends with common interests is important in building friendship as these interests would always bring you and your friend together. Hanging out will always be a pleasant experience.

Let it grow.

It is a good thing to stay in touch. However, try not to press your new friend with calls, messages or visits as this would likely wear him or her out and finally you may lose your friend. So you will need to give your span>friend time to react to you. 4

5

The best way to enjoy your friendship is to allow your friends to be themselves. Try not to find fault with your friends. Try not to change them from who they are to what you want them to be. Become the kind of friend you will want your friend to be to you.

A. Be cheerful.

B. Associate with others.

C. Enjoy your friendship.

D. Good friendship has many benefits.

E. You can always start the conversation.

F. For a friendship to develop you need to stay in touch.

G. The best friendships are the ones that grow naturally.

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