Question

One reaction to all the concern about tropical deforestation（毀林） is a blank stare that asks the question, "Since I don't live there, what does it have to do with me?"

The answer is that your way of life, wherever you live in the world, is tied to the tropics in many ways. If you live in a house, wash your hair, eat fruits and vegetables, drink soda, or drive a car, you can be certain that you are affected by the loss of tropical forests.

Biologically, we are losing the richest regions on earth when, each minute, a piece of tropical forest, the size of ten city blocks, disappears. As many as five million species of plants, animals, and insects (40 to 50 percent of all living things) live there, and are being lost faster than they can be found and described. Their loss is immeasurable.

Take rubber for example. For many uses, only natural rubber from trees will do. Synthetics are not good enough. Today over half the world's commercial rubber is produced in Malaysia and Indonesia, while the Amazon's rubber industry produces much of the world's four million tons. And rubber is an important material in making gloves, balloons, footwear and many sporting goods. Thousands of other tropical plants are valuable for their industrial use.

Many scientists strongly believe that deforestation contributes to the greenhouse effect -- or heating of the earth from increased carbon dioxide in the atmosphere. As we destroy forests, we lose their ability to change carbon dioxide into oxygen.

Carbon dioxide levels could double within the next half-century, warming the earth by as much as 4.5 degrees. The result? A partial melt-down of polar ice caps, raising sea levels as much as 24 feet; even 15 feet could threaten anyone living within 35 miles of the coast. Unbelievable? Maybe. But scientists warn that by the time we realise the severe effects of tropical deforestation, it will be 20 years too late.

Can tropical deforestation affect our everyday lives? Now, you should have got the answer.

1.The underlined word "synthetics" probably means_________.

 A. natural rubber                   B. tropical materials

 C. man-made material               D. commercial rubber

2.According to the passage, which of the following is NOT true?

 A. The forests are losing their function in turning carbon dioxide into oxygen.

 B. Many of our daily uses are related to the tropical forests.

 C. Tropical plants can be used to make industrial products.

 D. High carbon dioxide levels will make the earth warmer.

3.The author's attitude towards the tropical deforestation is _________ .

 A. puzzling        B. cold          C. supporting        D. opposed

4.Which of the following might be the best title for the passage?

 A. Tropical Forests                 B. The Value of Tropical Forests

 C. Tropical Forests and Our Life     D. The Greenhouse Effects

 

Answer 1

【答案】

 

1.C

2.A

3.D

4.C

【解析】

試題分析：文章用森林的過度砍伐對你的生活有影響嗎這個問題開篇，講述了森林的作用，生物學(xué)家說，每一分鐘都有大片的熱帶雨林消失，里面大量的物種也隨之消失，以橡膠為例，天然的橡膠是人工香蕉難以相比的。同時，大片森林的消失也導(dǎo)致了溫室效應(yīng)，氣溫的上升導(dǎo)致極地冰的融化，水平面上升使很多人無家可歸等。

1.C詞義推測題。Take rubber for example. For many uses, only natural rubber from trees will do. Synthetics are not good enough.句意為：以橡膠為例，有太多的用途，是從樹上得到的天然橡膠才能有的，所以后面應(yīng)為，人造的是不足夠好的。因此詞意為“人造的”。

2.A細(xì)節(jié)推斷題。文章的第一自然段以問題開始，下文介紹了森林的作用，有很多日用品是來自于樹的，溫室效應(yīng)的產(chǎn)生也與森林的銳減有關(guān)，故B是正確的；下文的以橡膠為例說明了熱帶雨林的作用，故C是正確的；到數(shù)第二自然段森林的減少，將二氧化碳轉(zhuǎn)為氧氣的功能降低，從而產(chǎn)生了溫室效應(yīng)，故D是正確的。森林本身沒有失去將二氧化碳轉(zhuǎn)化為氧氣的功能，而是森林的破壞使功能降低，故答案A不是真實的，應(yīng)排除。

3.D細(xì)節(jié)理解題。文章說明了森林對我們生活的影響，從第一自然段提出的問題到最后一自然段的呼應(yīng)，Can tropical deforestation affect our everyday lives? Now, you should have got the answer.熱帶雨林的破壞對我們的日常生活有影響嗎？你應(yīng)該知道答案了，可知作者是反對破壞森林的。

4.C綜合理解題。森林的過度砍伐對你的生活有影響嗎這個問題開篇，主要講述了森林的作用，生物學(xué)家說，每一分鐘都有大片的熱帶雨林消失，里面大量的物種也隨之消失，以橡膠為例，天然的橡膠是人工香蕉難以相比的。同時，大片森林的消失也導(dǎo)致了溫室效應(yīng)，氣溫的上升導(dǎo)致極地冰的融化，水平面上升使很多人無家可歸等。所以答案應(yīng)為C，熱帶森林與我們的生活。

【考點】考查科普環(huán)保類文章的閱讀理解。