首页
登录
职称英语
[originaltext] Forests are of great importance to our environment because th
[originaltext] Forests are of great importance to our environment because th
游客
2023-07-25
45
管理
问题
Forests are of great importance to our environment because they can absorb carbon dioxide and produce oxygen. They may also provide shelter and food for many different types of plants and animals. Trees are cut down for many reasons but the main reasons are to make space to build new houses and to clear land to grow grass for cows and sheep to eat, to produce dairy foods. The trees being cut down are sold and are made into paper and furniture.
Cutting down trees may have serious effects to the environment. (33)If animals’ homes, which are built in and around the trees, are destroyed, many species in the world will become extinct. For example, many different types of animals in South America had disappeared before scientists could learn about them. Cutting down trees also affects the climate. When rain falls on a forest, new clouds will be created. If huge areas of trees are cut down, clouds can not form, rain does not fall and the land becomes drier and drier and finally becomes deserts. (34)And what’s more, the carbon dioxide builds up and adds to the global warming which is making the earth become hotter and hotter.
(35)In recent years, to protect the forests, many European countries are planting trees faster than they are cutting them down. Many trees were planted a few years ago to replace woodland and to create forests in areas where there wasn’t much wood. We can also help to save forests by reusing and recycling paper.
选项
A、Continued rainfalls.
B、The increase of carbon dioxide.
C、The disappearance of grasslands.
D、Less land for cows and sheep.
答案
B
解析
在谈到global warming的原因时,听力中提到the carbon dioxide builds up and adds to the global warming which is making the earth become hotter and hotter,二氧化碳含量不断增加,导致了全球变暖,地球变得越来越热。由此可见,global warming的直接原因是二氧化碳含量的不断增加,所以本题的正确答案为B。
转载请注明原文地址:http://tihaiku.com/zcyy/2867581.html
相关试题推荐
[originaltext]Goingthroughcitiesandvillages,IwasattractedbySwedish
[originaltext]Goingthroughcitiesandvillages,IwasattractedbySwedish
[originaltext]W:Excuseme.Doyoulivehere?M:Yes,I’velivedhereinEdinbu
[originaltext]W:Excuseme.Doyoulivehere?M:Yes,I’velivedhereinEdinbu
[originaltext]W:Excuseme.Doyoulivehere?M:Yes,I’velivedhereinEdinbu
[originaltext]M:AreyoulookingforwardtoyourtriptoCanada?W:Ican’twai
[originaltext]Inancienttimes,manypeoplebelievedtileearthwasaflat
[originaltext]Inancienttimes,manypeoplebelievedtileearthwasaflat
[originaltext]Inancienttimes,manypeoplebelievedtileearthwasaflat
[originaltext]LasttimeweoutlinedhowtheCivilWarfinallygotstarted.
随机试题
Doctorsbaffledbyanunexplainedrashonpeople’searsorcheeksshouldbe
Listentopartofalectureinazoologyclass.Professor:Asyouknowfromthe
现代管理发展趋势的特点体现在哪些方面?
整体式板桥配置纵向受力钢筋和与之垂直的竖向分布钢筋,按计算一般不需设置箍筋和斜筋
行人的运输斜井应设人行道。人行道应符合的要求不包括()。A.有效宽度,不小于1.
某患者绝经6年,近来有阴道少量流血,刮宫时发现:刮出物为沉渣样组织,可能的诊断为
下面对人体试验的理解,错误的是A.为了获得医学科研成果,应该尽量多地开展人体试验
1991-115.胸部刺痛,痛处不移,舌质黯,脉沉,证属 A.阴寒凝滞B.
上市公司股权分置改革是通过()之间的利益平衡协商机制,消除A股市场股份转让制度性
中学生学习困难产生的原因包括( )A.认知因素 B.人格因素 C.人际关系
最新回复
(
0
)