Question

【題目】 Today there are many fires than in the past. Over 100.000 wildfires burn each year in America.Russia has 20,000 to 35,000 wildfires every year. Australia has on average 60,000 each year. These fires destroy huge areas of forests and burn hundreds of homes.

Many experts believe there are several reasons for this sudden increase in fires. The first reason is climate(氣候) change. Recent weather has been warmer and drier. This leads to dangerous fire conditions. When lightening strikes( 發(fā)生雷電) dry grass easily catches fire. Hot winds add to the problem. The wind spreads a fire quickly. In 2010, Russia had the hottest and driest summer in a century. In just one month, 500 fires destroyed over 2,000 homes. Some people lost their lives.

Traditional fire-fighting practices are another reason for the increase in fires. In America, firefighters used to quickly put out every fire .They didn't allow the grass and trees to burn. As a result, today many forests have thicker vegetation. Thicker vegetation means more fuel（燃料） for fires. Also, without fires from time to time, forests become overcrowded and unhealthy. Some trees are dead.The dead wood then easily catches fire. So surprisingly, America has many more fires today partly because of its past fire-fighting- practices.

Scientists now understand that a fire can be a natural part of a healthy forest. As a result, countries like Australia allow more fires to bum naturally. Sometimes. fire fighters even start fires to get rid of(去除) dead wood. Of course, they carefully control the fires. The fire thins out old trees. This allows sunlight to reach the ground. As result, fires help new trees to grow. Therefore, if a fire is not a serious threat(威脅) to people, firefighters may let it burn naturally

【1】Why did Russia have so many fires in one month in2010?

A.Because lightening spread the fire.B.Because there was much fuel for fires.

C.Because there were not enough firefighters.D.Because it was unusually hot, dry and windy.

【2】What happens because of the traditional fire-fighting practices in the USA?

A.There are fewer wildfires.B.Trees and grass become thicker.

C.The weather becomes warmer and drier.D.Sunlight reaches the ground to help forests.

【3】What is the main idea of Paragraph 4?

A.Fires are serious threats to human beings.B.Australian firefighters don't put out fires.

C.Fires can play an important role in forests.D.It's difficult for firefighters to control the fires.

【4】Which of the following is true according to the passage?

A.Not all the fires in the forests must be put out.B.People's carelessness leads to dangerous fires.

C.Australia allows all the fires to burn naturally.D.There are more fires in Russia than in the USA.

Answer 1

【答案】

【1】D

【2】B

【3】C

【4】A

【解析】

現(xiàn)在的火災(zāi)比過去更多了。每年有許多火災(zāi)發(fā)生，摧毀了許多森林和人們的家園，什么原因引發(fā)了更多的火災(zāi)？如何控制火災(zāi)讓其更好地服務(wù)于人類？本篇文章分析了火災(zāi)的原因以及怎樣控制火災(zāi)。

【1】細節(jié)理解題。根據(jù)文中的句子“In 2010, Russia had the hottest and driest summer in a century.”，可知在2010年俄羅斯經(jīng)歷了一個世紀(jì)以來最熱、最干燥的夏天�？芍�選項D是俄羅斯一個月發(fā)生很多火災(zāi)的原因。故選D。

【2】細節(jié)理解題。根據(jù)文中的句子“In America, firefighters used to quickly put out every fire. They didn't allow the grass and trees to burn. As a result, today many forests have thicker vegetation( ) Thicker vegetation means more fuel（燃料） for fires.”，可知消防員迅速撲滅每一場火災(zāi)，他們不允許草和樹林燃燒，導(dǎo)致森林有更厚的植被。故選B。

【3】細節(jié)理解題。根據(jù)本段的第一句“Scientists now understand that a fire can be a natural part of a healthy forest.”以及“As result, fires help new trees to grow.”，可知火災(zāi)可以被視為健康森林的一部分，可以幫助新的數(shù)目生長。同時結(jié)合整段段意，可知這一段主要講述了火災(zāi)對于森林來說是由重要作用的。選項C符合題意。故選C。

【4】推理判斷題。根據(jù)文中的句子“As result, fires help new trees to grow. Therefore, if a fire is not a serious threat(威脅) to people, firefighters may let it burn naturally”，可知并不是所有的火災(zāi)必須被撲滅。故選項A正確；選項B說的是：人們疏忽導(dǎo)致了危險的火災(zāi)，這個是文章沒有提及的；選項C說的是澳大利亞允許所有的火自然燃燒，顯然說的過去絕對，錯在單詞all上；選項D說的是：俄羅斯比美國有更多的火災(zāi)，文中沒有進行比較。綜合以上分析，選項A的說法是符合題意。故選A。