5．The following conversation is between Susan Russell-Robinson from the US Geological（地質(zhì)學(xué)的）Survey and Barbara Reynolds from USA Today．
Q：Why，after 600 years of no activity，did Mount Pinatubo in Philippines erupt（噴發(fā)）in 1991？
A：Volcanoes（火山）each have their own eruption styles．This volcano probably has a rule which makes it erupt in the order of every 500 to 1000 years，but a volcano in Hawaii seems to erupt every year，and some of the Alaskan volcanoes might erupt every 10 or 20 years．
Q：So nothing caused it？
A：There's nothing out of the ordinary．If you were to take an ordinary calendar year，50to 75or 80volcanoes erupt around the world every year．There are 20 to 30 volcanoes every month that show signs of unrest．That might be a full-blown eruption or a whole host of activities like that．
Q：What is"the ring of fire"？
A：If you look at where active volcanoes are placed around the world，there are somewhere between 500and 600 of them．There is what appears to be almost a necklace that goes around the Pacific Ocean．It makes a ring where 60% of the world's volcanoes lie．
Q：Why such a concentration（集中）there？
A：That's based on a theory that the oceans and the continents（大陸） are like separate pieces．When they move，one might ride up over the other one．In this case，the Pacific Ocean goes under the continents and when that happens it seems to produce magma（熔巖）at depth and then you have volcanoes in the same ring．
21．What kind of writing do you think this passage is？B
A．A text taken from a geography book．
B．An interview published in the press．
C．A conversation carried out in a film．
D．An oral test recorded as an example．
22．Which of the following statements can correctly explain why we have so many volcanoes around the Pacific Ocean？A
A．The movement of the surface of the earth makes it possible．
B．The Pacific Ocean produces magma and presses it everywhere．
C．The oceans and the continents are separated from each other．
D．The earth's surface around the Pacific is thinner than any other part．
23．Barbara Reynolds'main purpose here isD．
A．to show how dangerous volcanoes are to the world
B．to learn what signs a volcano gives us before its eruption
C．to warn the world of the existence of"the ring of fire"
D．to introduce some general idea of volcanoes to the public
24．Which of the following can be considered as the best conclusion of the conversation？C
A．There are so many volcanoes in the world and we are always in danger．
B．Volcanoes have erupted more frequently than ever before．
C．Volcanoes are waiting to be better known．
D．Something must be done to protect the people near the ring of fire．
分析 本文是一篇廣告布告類閱讀，屬于采訪，主要講述了來(lái)自美國(guó)地質(zhì)學(xué)調(diào)查局的Susan Russell-Robinson和"今日美國(guó)"的Barbara Reynolds關(guān)于火山有關(guān)知識(shí)的對(duì)話．
解答 21．B．推理判斷題．根據(jù)第一句話：The following conversation is between Susan Russell-Robinson from the US Geological （地質(zhì)學(xué)的）Survey and Barbara Reynolds from USA Today．可知，本文是一段采訪．故選B．
22．A．細(xì)節(jié)理解題．最后一個(gè)問(wèn)題是：為什么火山這么的聚集：答案是：When continents and when that happens it seems to produce magma（熔巖）at depth and then you have volcanoes in the same ring．可知，當(dāng)大陸出現(xiàn)的時(shí)候，它在深處產(chǎn)生熔巖，然后在同一個(gè)環(huán)中產(chǎn)生火山．故可推知，太平洋周圍有許多火山是因?yàn)榈厍虮砻娴倪\(yùn)動(dòng)使其成為可能．故選A．
23．D．細(xì)節(jié)理解題．根據(jù)全文內(nèi)容可知，Barbara Reynolds在采訪中主要介紹了些火山知識(shí)．故選D．
24．C．推理判斷題．從整個(gè)采訪的內(nèi)容可知人們對(duì)火山還不了解，還有很多知識(shí)要了解．故選C．
點(diǎn)評(píng) 本文是一篇廣告布告類閱讀，題目涉及多道主旨大意題，細(xì)節(jié)理解題，推理判斷題．做題時(shí)學(xué)生應(yīng)仔細(xì)閱讀原文，把握文章主要內(nèi)容，聯(lián)系文章上下文內(nèi)容并結(jié)合所給選項(xiàng)含義，從中選出正確答案，一定要做到有理有據(jù)，切忌胡亂猜測(cè)．
