Question

【題目】 Today there are more 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 _______. The first is climate change. Recent weather has been warmer and drier. This leads to dangerous fire conditions. When lightening strikes, 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(植被). Thicker vegetation means more fuel 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 healthy forest. As a result, countries like Australia allow more fires to burn naturally. Sometimes, fire fighters even start fires to get rid of dead wood. Of course, they carefully control the fires. The fire thins out old trees. This allows sunlight to reach the ground. As a result, fires help new trees to grow. Therefore, if a fire is not a serious threat to people, firefighters may let it burn naturally.

【1】Today _______ has the most wildfires each year according to the passage.

A.AustraliaB.AmericaC.RussiaD.China

【2】Russia had many fires in one month in 2010 because _______.

A.lightening spread the fireB.there was much fuel for fires

C.there were not enough firefightersD.it was unusually hot, dry and windy

【3】What can be filled in the blank in Paragraph 2?

A.there are several reasons for this sudden increase in fires

B.people have done too many terrible things in recent years

C.stopping fires is difficult for people

D.careless people cause some fires

【4】Because of the traditional fire-fighting practices in the US, _______.

A.there are fewer wildfiresB.trees and grass become thicker

C.the weather becomes warmer and drierD.sunlight reaches the ground to help forests

【5】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.

【6】Which of the following is TRUE according to 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 2000 fires in Russia in 2010.

Answer 1

【答案】

【1】B

【2】D

【3】A

【4】B

【5】C

【6】A

【解析】

文章大意：本文講現(xiàn)在的火災(zāi)比過去更多了，分析了引發(fā)火災(zāi)的原因，并指出火災(zāi)可能是健康森林的一部分，只要大火不對人類構(gòu)成嚴(yán)重威脅，并非所有的或都要撲滅。

【1】細節(jié)理解題。根據(jù)第1段中“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.”可知未提及中國的情況，文中提到的幾個國家中美國的野火最多。故選B。

【2】推理判斷題。根據(jù)第2段中“In 2010, Russia had the hottest and driest summer in a century. In just one month, 500 fires destroyed over 2,000 homes.”結(jié)合上文內(nèi)容可推出2010年俄羅斯有許多火災(zāi)是因為天氣異常炎熱干燥，再加上風(fēng)的作用。故選D

【3】推理判斷題。根據(jù)設(shè)空處下文中“The first is climate change.”及“Traditional fire-fighting practices are another reason for the increase in fires.”可推出此處應(yīng)是說許多專家堅信火災(zāi)突然增多是有一些原因的。故選A。

【4】細節(jié)理解題。根據(jù)第3段中“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(植被). ”可知因為美國的傳統(tǒng)消防實踐，植被（即樹木和草）變得更厚。故選B。

【5】段落大意題。第四段描述的例子論證了科學(xué)家對大火可能是平衡森林的一個自然部分的觀點，說明火在森林里有重要作用。故選C。

【6】細節(jié)理解題。根據(jù)第4段中“Therefore, if a fire is not a serious threat to people, firefighters may let it burn naturally”可知如果火災(zāi)沒有嚴(yán)重威脅到人們，消防員可能回任其自然燃燒，并不是森林中所有的火都必須被撲滅，A項正確。故選A。