17.A new study showed that one of the best ways to control greenhouse gas emissions(溫室氣體排放) is to eat less meat.In fact,the study showed that meat consumption(食用量) in developed countries should be cut by 50% per person before 2050.
Meat production and consumption are expected to rise very quickly to a high level by 2050.That's because the global population is expected to grow from the present 7billion to 9billion.But also,the diets of people in many developing countries are changing.Countries that are developing rapidly are seeing a fast rise in protein consumption,especially red meat.
Dr.Eric Davidson,the president and senior scientist at the Woods Hole Research Center in Massachusetts,said changing the way people eat can have a great effect on greenhouse gas emissions.People in developed countries,he said,already eat much more protein than the daily requirement.
"In the developed world,there is large room for us to manage the frequency with which we eat meat.If there is a growing need for meat,that is going to end up requiring use of more nitrogen fertilizer(肥料) and production of more livestock manure(家畜糞肥),both of which end up resulting in release of various forms of greenhouse gases to the atmosphere,"he said.
Davidson said farmers should be encouraged to use fertilizers and manure in a more careful way."If we want to meet the greatest goal of making harmful climate change under control,we need to improve the efficiency(效能) with which we use fertilizers in agriculture.We need to improve the efficiency of the management of manure.And we also need to consider changes in dietary patterns(飲食方式).And that means hopefully better diets in the developing world and better balanced diets in the developed world,"he said.
Even if it were possible to turn off all harmful greenhouse gas emissions today,he said climate change would continue."But that does not mean that we can do nothing for it now,because the sooner we start to take action,the more choices our children and grandchildren will have in terms of being able to feed themselves and have comfortable lifestyles without environmental degradation(退化),"he said.
28.According to the new study,eating less meat isD.
A.one of the best ways to keep healthy
B.a(chǎn)n effective way to develop the economy
C.the best way to control greenhouse gas emissions
D.a(chǎn) good way to protect the environment
29.In paragraph 4,what does Dr.Eric Davidson mainly talked about?C
A.The harms of releasing various greenhouse gases
B.The side effects of producing fertilizers and manure
C.The effects of growing need for meat on the environment
D.The ways of managing the frequency of eating meat
30.The underlined word"it"in the last paragraph refers toB.
A.the environment
B.climate change
C.greenhouse gases
D.the lifestyle
31.In Dr.Eric Davidson's opinion,C.
A.it's important to encourage farmers to use fertilizers
B.our future generations will live more comfortably
C.a(chǎn) balanced diet is helpful in controlling climate change
D.it's completely possible to control greenhouse gas emissions.
分析 本文是一篇科教類閱讀,主要介紹了一項(xiàng)新的研究發(fā)現(xiàn)--少吃肉可以減少溫室氣體的排放.
解答 28-31 DCBC
28題答案:D考查細(xì)節(jié)推理,根據(jù)文章第一段第一句的A new study showed that one of the best ways to control greenhouse gas emissions(溫室氣體排放) is to eat less meat.一項(xiàng)新的研究表明控制溫室氣體排放的最佳方法之一是少吃肉.可知本題答案為D選項(xiàng).
29題答案:C考查細(xì)節(jié)推理,根據(jù)文章第四段的If there is a growing need for meat,that is going to end up requiring use of more nitrogen fertilizer(肥料) and production of more livestock manure(家畜糞肥)…"如果對于肉類的需求不斷增長,那么最終會(huì)導(dǎo)致肥料的更多使用與更多家畜糞肥的產(chǎn)生…"可知本段主要講的是"不斷增長的肉類需求對于環(huán)境的影響",故本題答案為C選項(xiàng).
30題答案:B考查細(xì)節(jié)推理,根據(jù)倒數(shù)第一段的he said climate change would continue.But that does not mean that we can do nothing for it now…"他說氣候改變還將繼續(xù),但是那并不意味著現(xiàn)在我們對此束手無策…"可知it指的就是前面的"氣候改變",故本題答案為B選項(xiàng).
31題答案:C考查細(xì)節(jié)推理,根據(jù)文章倒數(shù)第二段的If we want to meet the greatest goal of making harmful climate change under control…And we also need to consider changes in dietary patterns(飲食方式).And that means hopefully better diets in the developing world and better balanced diets in the developed world."如果我們想要達(dá)到使有害的氣候改變處于控制的偉大目標(biāo)…我們也需要考慮我們的飲食方式,那意味著發(fā)展中國家更好的飲食方式以及發(fā)達(dá)國家更加平衡的飲食方式."可知"均衡飲食有助于控制氣候改變",故本題答案為C選項(xiàng).
點(diǎn)評 本文是一篇科教類閱讀,題目涉及多道細(xì)節(jié)理解題,做題時(shí)結(jié)合原文和題目有針對 性找出相關(guān)語句進(jìn)行仔細(xì)分析,結(jié)合選項(xiàng)選出正確答案.推理判斷也是要在抓住關(guān)鍵句子的基礎(chǔ)上合理的分析才能得出正確的答案.