首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Historians and philosophers agree that ever since the development of agriculture, human beings have had art effect on the natura
Historians and philosophers agree that ever since the development of agriculture, human beings have had art effect on the natura
admin
2010-02-05
25
问题
Historians and philosophers agree that ever since the development of agriculture, human beings have had art effect on the natural habitat (动植物生息地) of many plants and animal species. As human populations have increased, as many as 6,000 species are disappearing each year. A number 10,000 times greater than before man appeared on the planet. In one day alone, say scientists, some 45 kinds of plants and animals will die, some 17,500 species will be wiped out.
In 1977, the United States Congress took an important step to help the ever - increasing number of endangered species. With the enforcement of the Endangered Species Act, some species have gained more public recognition than others. Elephants and whales, for example, have received far more media attention than have the smaller, less known, and less attractive species that are also endangered. Yet it is the tiny species, such as bugs and bacteria, that keep the planet in balance. Scientists are becoming even more concerned with the fact that without equal concern for these species, the planet’s biological diversity will be destroyed, leaving us with a loss of potential new food and drugs.
On the other hand, some scientists argue that the extinction issue is being exaggerated(夸大), and that people are "crying wolf" by describing the loss of species as more alarming than it really is. History proves that every species will eventually become extinct. Evolution of species, they say, naturally involves the extinction of species; man has no control.
In addition, many people point to the fact that the world is already lacking in resources, food, and adequate health care. Concerned more with economic survival, they ask whether it is, in fact, realistic to make a fuss over saving the elephant or other species that may become extinct many years from now, when people have families to feed tomorrow. These people question a law that puts the continuation of lower forms of life above man’s own survival.
1. The issue: To what extent we should try to (46) or allow for man’s development.
2. Proponents’ ( 支持者) ( of saving endangered species) arguments :
a. The extinction of plants and animals is (47) before man appeared on the planet.
b. Tiny species keep the earth in balance.
c. Man needs (48) for food and drugs.
3. Opponents’ (反对者) ( of saving endangered species) arguments:
a. Proponents exaggerate the case.
b. Species (49)
e. Man’s need (50)
选项
答案
now 10,000 times greater than
解析
转载请注明原文地址:https://kaotiyun.com/show/LElK777K
本试题收录于:
大学英语三级A级题库大学英语三级分类
0
大学英语三级A级
大学英语三级
相关试题推荐
BecauseoftheCOVID-19,onlinestudyingisbecoming________(popular)thanbefore.
Ourtwoseniorprogrammers________eachothereversincetheywereatcollege.
Aftermakingaspeechabouttheschool,Mr.Whitewenton(show)________thevisitorsaroundit.
Ibelievethatlackofcommunicationbetweendifferentdepartmentswill________seriousproblems.
There’safreeandimportanttool________canhelpalljobhunterstolookforajob:email.
Twoofthechildrenhadtoshareonebed,buttheotherthreehad________ones.
Accordingtoa【B1】________,about25%ofcollegestudentshaveapart-timejob.Bytheupcomingsummervacation,thisfigurewil
Themedicalteamdidmorethan(complain)______aboutthepoorworkingconditionsandstartedworkingimmediately.
______isoftenthecase,onethirdoftheworkershaveover-fulfilledtheproductionplan.
Madewithwildsementrichosanthis(—食品名)growingintheremotemountainsatthesouthbankofTaihuLake,theproducthasfragra
随机试题
在X线片上,髓室及根管影像完全消失,不能分辨出髓腔界线,表示有
关于滴丸的叙述,正确的有
外阴炎的原因与下列哪项无关
下列选项中,对证券投资基金的投资进行限制的主要目的是()。
一般资料:张某,女性,19岁,大学一年级学生。案例介绍:张某以高分考入某重点大学,她学习认真,乐观开朗,热情助人,人际关系良好,很受同学的喜欢。但这学期开学后同学们纷纷反映张某变了,有时很兴奋,不停地自言自语说着什么,但同学们听不懂她在说什么,说话
简述《普通高中美术课程标准(实验)》中“绘画·雕塑”模块的成就标准。
根据《国家赔偿法》的规定,下列各项中可以构成公安刑事赔偿的情形是()。
Thehappieryouare,thebetter,right?Notnecessarily.Studiesshowthatthereisadarkersidetofeelinggoodandthatthe【C
二进制数111111转换成十进制数是
Anumberoffactorsrelatedtothevoicerevealthepersonalityofthespeaker.Thefirstisthebroadareaofcommunication,
最新回复
(
0
)