5．What do you usually have for lunch？Indeed，for many of us，meat has been part of our diet for years．
For your American peers，however，school lunch might have to change this year-there could be less meat and more fruits，vegetables，nuts，whole grains and other plant-based foods for them in future．
Their new diet would encourage Americans to eat more healthily．But it could mean much more than that．According to the Fox Business website，the new school lunch also looks at what is healthy for the environment．A diet higher in plant-based foods and lower in animal-based foods causes"less environmental damage than the current average US diet"，a research from a US government committee said．
No matter how tasty you think meat is，it seems to be causing problems for the environment．Researchers from the International Livestock（家禽）Research Institute in Kenya and the Commonwealth Scientific and Industrial Research Organization in Australia and the International Institute for Applied Systems Analysis in Austria looked at the livestock industry around the world and found that it is adding to climate change．
In poorer countries like Ethiopia and Somalia，1，000kg of carbon is produced for every kilogram of protein produced by cattle．This happens because of the methane（甲烷）gas that comes from the cattle's manure（糞便）．When forests are cut down to make land for livestock like cattle，the trees can no longer absorb carbon，which then goes to the atmosphere．
Although groups like the National Cattlemen's Beef Association in the US are unhappy with the idea，environmental groups would be happy if the changes happened．"We need to make sure we think about our natural resources and the need to reduce climate change when we choose our diets，"said Karl Hamerschlag of the group Friends of the Earth．
So，would you give up meat for the good of the environment，or does beef taste too good for you to support these plans？
25．What change will take place in American school lunches？D
A．Some tasty dishes will be added to their menus．
B．More animal-based foods will be offered．
C．Only less nutritious foods will be provided．
D．Students will be given more plant-based foods．
26．What is the real purpose of the new diet in America？B
A．To help students eat more healthily．
B．To help improve the environment．
C．To carry out a research．
D．To add nutrition to school lunch．
27．Which group might not be in favor of the new diet？D
A．The International Livestock Research Institute．
B．The Commonwealth Scientific and Industrial Research Organization．
C．The International Institute for Applied Systems Analysis．
D．The National Cattlemen's Beef Association．
28．What does the writer mainly tell us？C
A．School lunch must be changed in America in future．
B．Eating less meat and more fruits can keep us healthy．
C．Eating less meat helps to improve the environment．
D．Cattle'manure releases too much methane gas．
分析 本文屬于說(shuō)明文閱讀，作者通過(guò)這篇文章主要向我們描述了美國(guó)學(xué)校午餐會(huì)提供更多的植物性食物，這可以幫助改善環(huán)境．
解答 25．D．細(xì)節(jié)理解題．根據(jù)第二段however，school lunch might have to change this year-there could be less meat and more fruits，vegetables，nuts，whole grains and other plant-based foods for them in future可知美國(guó)學(xué)校午餐會(huì)提供更多的植物性食物；故選D．
26．B．細(xì)節(jié)理解題．根據(jù)第三段A diet higher in plant-based foods and lower in animal-based foods causes"less environmental damage than the current average US diet"，a research from a US government committee said可知美國(guó)新飲食的真正目的是幫助改善環(huán)境；故選B
27．D．推理判斷題．根據(jù)倒數(shù)第二段Although groups like the National Cattlemen's Beef Association in the US are unhappy with the idea，environmental groups would be happy if the changes happened可知美國(guó)牛肉協(xié)會(huì)不贊成新的飲食；故選D．
28．C．推理判斷題．根據(jù)最后一段So，would you give up meat for the good of the environment，or does beef taste too good for you to support these plans可知作者主要告訴我們少吃肉類(lèi)有助于改善環(huán)境；故選C．
點(diǎn)評(píng) 考察學(xué)生的細(xì)節(jié)理解和推理判斷能力，做細(xì)節(jié)理解題時(shí)一定要找到文章中的原句，和題干進(jìn)行比較，再做出正確的選擇．在做推理判斷題不要以個(gè)人的主觀(guān)想象代替文章的事實(shí)，要根據(jù)文章事實(shí)進(jìn)行合乎邏輯的推理判斷．
