内容正文:
Section Ⅰ Welcome to the unit & Reading
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①a huge sea of大量
huge adj.庞大的,极大的
②play a role in在……中起作用
③maintain v.保持,维持
④ecosystem n.生态系统
⑤overseas adj.海外的,国外的 adv.在海外,向国外
⑥region n.地区,区域;行政区
⑦continent n.大陆,陆地,洲
⑧million num.一百万;许多,大量
⑨length n.长,长度;时间的长短;篇幅, (电影)片长
⑩roughly adv.粗略地,大约
biodiversity n.生物多样性
species n. (pl. species)种,物种
nut n.坚果
brazil nut 巴西坚果
lily n.百合(花)
water lily 睡莲
variety n.不同种类;变化,多样性;变种,变体
wildlife n.野生动植物,野生生物
beneath prep.在……下面,在……下方;配不上
mass n.大量;团,块,堆;一大群 adj.大批的,广泛的
litter n. (森林里的)落叶,落叶层;(公共场所内乱扔的)垃圾,废弃物;一堆杂乱的东西
be made up of 由……组成
towering adj.高大的,高耸的;出色的
hardwood n.阔叶树;硬材(阔叶树的木材)
living adj.活着的,活的;在使用的 n.生计,谋生;生活方式
mammal n.哺乳动物
jaguar n.美洲豹,美洲虎
coat n. (植物)表皮;涂料层,覆盖层
significant adj.显著的,相当数量的;重要的
survive vi.生存,存活vt.幸存,幸免于难
element n.基本部分,要素
frog n.蛙,青蛙
in turn相应地,转而
insect n.昆虫
microorganism n.微生物
break down使分解(为),使变化(成)
nutrient n.营养素,营养物
breathe life into给……带来起色,注入活力
carbon n.碳
oxygen n.氧,氧气
thus adv.因此,从而;这样
irreplaceable adj.不可替代的,独一无二的
disappear vi.不复存在,灭绝,消亡;消失;失踪
due to由于,因为
agriculture n.农业,农学
cattle n.牛
impact n.影响,作用;撞击,冲撞vi.& vt.有影响;冲击
in danger of处于……危险之中
extinction n.灭绝,绝种
damage vt.& n.损害,伤害,损坏,破坏
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The Amazon rainforest: a natural treasure
Welcome to the jungle,a huge sea of① green alive with the sounds of animals. This is the Amazon rainforest. As the largest rainforest in the world,it plays a significant role in② maintaining③ the fine balance of the Earth’s ecosystem④.
The Amazon rainforest crosses into eight countries,including Brazil and Peru,and one overseas⑤ region⑥ of France,all on the South American continent⑦. 【1】 With an area of around 6 million⑧ square kilometres,the Amazon rainforest is more than half the size of 【2】 China. The Amazon River,from which the rainforest gets its name,【3】 is close to 6,400 kilometres in length⑨—roughly⑩ 100 kilometres longer than the Yangtze River. On its journey from the mountains to the ocean,the river supports many different ecosystem