Unit 2 Poems李仕才一、阅读理解。
The Amazon basin region is home to about 2.5 million insect species，tens of thousands of plants，and some 2，000 birds and mammals.To date，at least 40，000 plant species，3，000 fish，1，294 birds，427 mammals，428 amphibians，and 378 reptiles have been scientifically classified in the region.One in five of all the birds in the world live in the Amazon rainforest.The warm and wet forest has been in existence for at least 55 million years，and thrived even during glacial periods，allowing for the evolution of an unbelievable diversity of species.Radiocarbon dating(放射性碳定年法) has revealed trees of 10 centimeter in diameter to be more than 300 years old，and some trees over 1，000 years old，indicating that untouched forests can experience unbelievable longevity.The first human inhabitants are thought to have settled in the Amazon region about 11，200 years ago.European explorers arrived in the 16th century，bringing diseases which traveled faster than the explorers themselves，killing perhaps as many as 90% of the indigenous inhabitants(土著居民)．By the late 17th century the Amazon basin was controlled by Portuguese and Spanish explorers.The Amazon rainforests has been described as the lungs of our planet because of its important role in recycling carbon dioxide into oxygen.But due to deforestation(滥伐森林)，rainforests now cover less than 5% of the Earth’s land surface，and experts believe that this is a big contributor to global climate change.Severe deforestation began in the 20th century，with 587，000 square kilometers lost up to the year 2000.Most deforested land is used for grassland to raise farm animals and agriculture.The addition of transport routes has led to increased settlement and deforestation，and at the present rate，scientists estimate that the Amazon rainforest will be reduced by 40% in two decades.【解题导语】本文主要讲述了亚马逊热带雨林的历史、丰富的物种以及现在所面临的危险。
1．Why are the figures mentioned in Paragraph 1?A．To prove the forest untouched.B．To classify species scientifically.C．To show the diversity of species.D．To attract more attention to the Amazon region.C 解析：推理判断题。
根据第一段的内容并结合第二段第一句中的“allowing for the evolution of an unbelievable diversity of species”可推知，那些关于动植物种类的数字说明了亚马逊热带雨林的物种多样性，故选C。
2．Why did most indigenous inhabitants in the Amazon region die?A．European explorers brought diseases there.B．Portuguese explorers treated them badly.C．A lot of trees were cut down and burned.D．They got killed by Spanish explorers.A 解析：细节理解题。
根据第三段第二句可知，可能多达90%的亚马逊土著居民因为欧洲探险者所带来的疾病而死亡，故选A。
3．What can be inferred about the Amazon rainforest?A．It has the largest number of species.B．It covers over 5% of South America.C．It is becoming larger in area.D．It is being endangered now.D 解析：推理判断题。
根据最后一段的“at the present rate...in two decades”并结合最后一段的整体内容可推知，亚马逊热带雨林遭到破坏，而且未来20年可能会减少40%，故选D。
4．What may be included in the following paragraph?A．Examples of destroying forests.B．Measures to protect rainforests.C．New settlements in the Amazon region.D．Ways to stop global warming.B 解析：推理判断题。
根据最后一段的关键词“deforestation(滥伐森林)”可推知，亚马逊热带雨林砍伐严重，那么文章接下来自然就会论述这一问题的解决措施，故选B。
二、单句语法填空1．Is there anything ________ particular that you want to talk about?答案：in in particular为固定的介词短语，作后置定语，修饰anything，意为“特别的”。
2．If we ________ (exchange) telephone number last week, I would have no trouble getting in touch with you now.答案：had exchanged 该句为错综时间虚拟条件句。
由last week可知，从句表示与过去事实相反，故应填had exchanged。
3．Although ________ (tease) about fatness, she still has confidence in herperformance of daily life.答案：teased 主语she与tease之间为被动关系，故应用过去分词作状语。
4．This is a poem that perfectly ________ (convey) to the readers what the poet feels.答案：conveys 由主句谓语动词is和从句中的feels可以判断用一般现在时。
定语从句的先行词为a poem，为单数形式，故从句谓语动词也应用第三人称单数形式conveys，该从句含有“convey sth. to sb.”的结构。
5．She always exchanges words ________ her neighbours.答案：with exchange ... with ... “和……交换……”。
6．Since then it ________ (transform) itself from a small fishing village into a major financial centre.答案：has transformed 由since then可知，句子应用现在完成时。
7．In some places women are expected to earn money ________ men work at home and raise their children.答案：while while “而，然而”，可用于表示两种情况的对比。
8．With something important ________ (talk) about with you, you must stay here.答案：to talk 该句为“with＋宾语＋to do”复合结构，to do表示将来的动作。
9．He just took ________ for granted that he would pass the exam.答案：it take it for granted that ... 为常用句式，意为“认为……是理所当然的”。
10．I think her ________ (translate) of the article is much better.答案：translation 由her可知，应填所给词的名词形式translation，意为“翻译；译文”。