Question

【題目】 Mark Twain once said that everyone talks about the weather, but no one ever does anything about it. This was true in his day. But it may not be the cave in today’s world. In fact, humans have found many different ways to control the weather.

Cloud seeding(云催化) is a kind of technology that can control rain. It is done by spreading chemicals like dry ice or silver iodide(碘化銀) inside of clouds, either by rocket or airplane. This changes water content inside the cloud, which helps to control the rainfall, the time and even the place where it rains.

This technology has helped to solve natural disasters, such as droughts(干旱). It has also played a key role during important events. For example, China used cloud seeding in Beijing just before the 2008 Olympic Games in order to stop rain from falling during the event.

Cloud seeding has been put into use for some time, however, some scientists are still wondering whether this technology is safe. On one hand, it is believed that it might have side effects(副作用). For example, silver iodide may be bad for the environment. On the other hand, no two clouds are the same, so every new experiment introduces new conditions.

In addition to controlling rain, scientists have also tried to find ways to weaken storms and hurricanes. Scientists at the US National Hurricane Centre Headquarters think it might be possible to control hurricanes by using lasers(激光). Others believe that burning rock oil in a hurricane’s path could slow the storms down.

【1】The material above may be from a(an) ___________.

A.poemB.playC.advertisementD.magazine

【2】What can we learn about cloud seeding?

A.Cloud seeding may not be environmentally friendly.

B.Cloud seeding can solve all the problems caused by rain.

C.Cloud seeding technology is welcomed by all the scientists.

D.Cloud seeding has been in use to control storms and hurricanes.

【3】This passage is probably written to tell ___________.

A.the advantages of cloud seedingB.the importance of technology

C.the ways of controlling the weatherD.the side effects of cloud seeding

Answer 1

【答案】

【1】D

【2】D

【3】C

【解析】

本文是一篇說明文，介紹了人類用于控制天氣的不同方法。

【1】題意：上述材料可能來自于__________。

推理判斷題。通讀全文可知，本文是一篇說明文，介紹了人類用于控制天氣的不同方法，通常關(guān)于此類科普性質(zhì)的文章會出現(xiàn)在科學(xué)類的雜志中。D選項magazine“雜志”符合題意，故選D。

【2】題意：關(guān)于人工降雨，我們可以知道些什么？

推理判斷題。根據(jù)原文第5段In addition to controlling rain, scientists have also tried to find ways to weaken storms and hurricanes可知，除了控制降雨，科學(xué)家們還試圖找到其他減弱風(fēng)暴和颶風(fēng)的方法，由此可推斷云催化已經(jīng)被應(yīng)用到了減弱風(fēng)暴和颶風(fēng)上。D選項Cloud seeding has been in use to control storms and hurricanes“云催化已經(jīng)被用來控制風(fēng)暴和颶風(fēng)”符合題意，故選D。

【3】題意：這篇文章可能是為了說明__________。

主旨大意。原文第1段最后一句In fact, humans have found many different ways to control the weather點出了本文的寫作目的，即人類已經(jīng)找到許多不同的方法來控制天氣。C選項the ways of controlling the weather“控制天氣的方法”符合題意，故選C。