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
29
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:https://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
Soaddictedtothecomputergames______thatacentrehasbeensetuptohelpthe
阅读以下说明和流程图,填写流程图中的空缺,将解答填入答题纸的对应栏内。【说明】设
下列组合,错误的是A.显影剂--菲尼酮 B.保护剂--无水亚硫酸钠 C.促进
王先生,55,汉族,文职人员,身高175cm,体重80kg,腰围92cm,血压1
在药剂学中使用辅料的目的不包括A.有利于制剂形态的形成 B.使制备过程顺利进行
胸部手术后患者出现呼吸困难、发绀、呼吸音明显减弱,应首先考虑为A.肺水肿 B.
《国家电网公司变电检测管理规定》以下人员,负责本班标准作业卡的审核的是()。
2020年12月10日,张某持甲公司签发的一张金额10万元的现金支
检验批可根据施工、质量控制和专业验收的需要进行划分,下列属于检验批划分依据的有(
男性,46岁,有胃癌家族史,本人因胃部不适行胃镜检查,结果示幽门螺杆菌(Hp)相
最新回复
(
0
)