Question

6．Plastic bags are everywhere!Every day，we are handed countless plastic bags：when we go to grocery stores，clothing stores，book stores and restaurants．Yes，sometimes，they are  convenient，but most of the time，they are avoidable．A plastic bag is just not necessary for that apple you are about to eat or that soda you are going to drink right away．Consider these questions：
    Do I need to take as many plastic bags in supermarkets？
    Do I need a plastic bag for an item purchased that is already well packaged？
    Could I bring my own shopping bag when making purchases？
    Plastic bags are the cause of major environmental concerns．It is thought that an average person uses around 130 plastic bags per year．Using fewer plastic bags is a must in solving environmental problems．
Reasons why you should limit your use of plastic bags：
  1．Plastic bags account for a major part of our waste in landfills（垃圾填埋場(chǎng)）．Plastic
    bags are light and hard to contain．Because of this，plastic bags fly easily in wind，float along in the currents of rivers and oceans，and get caught in trees and fences．
  2．Plastic bags are made from a non-renewable natural resource（資源）：oil．Therefore，this contributes to the disappearance of our natural resources．
  3．Countless plastic bags end up in our oceans and cause harm to our sea life．Many sea animals and birds mistakenly eat and choke on plastic or become tied up in plastic bags that are floating around．
  4．There are many better alternatives to plastic bags．Paper bags hold more than plastic bags．But the best alternative to using plastic bags is using cloth bags．

46．What's the main idea of the first paragraph？A
A．Plastic bags are uncontrollable
B．Plastic bags are unnecessary．
C．Plastic bags are inconvenient
D．Plastic bags are dangerous．
47．Which of the following is NOT the reason for limiting the use of plastic bags？D
A．They speed up the disappearance of oil
B．They threaten the lives of sea animals．
C．They do harm to trees and fences
D．They pollute the environment．
48．The best thing people can do to help solve the plastic bag problem is toC
A．stop making plastic bags from oil
B．use paper bags instead of plastic bags
C．bring their own cloth bags when shopping
D．pick up plastic bags found in rivers and oceans．

Answer 1

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塑料袋對(duì)環(huán)境的污染越來(lái)越嚴(yán)重，帶來(lái)許多環(huán)境問(wèn)題，現(xiàn)在人們也意識(shí)到了環(huán)境保護(hù)的重要性，呼吁人們帶自己的布袋購(gòu)物．

解答 46．A．段落大意題．根據(jù)第一段we are handed countless plastic bags：when we go to grocery stores，clothing stores，book stores and restaurants可知第一段的主要思想是塑料袋是無(wú)法控制的；故選A．
47．D．細(xì)節(jié)理解題．根據(jù)文章可知限制使用塑料袋的原因是加快了石油的消失，威脅海洋動(dòng)物的生命，和危害樹(shù)木和籬笆等；故選D．
48．C．細(xì)節(jié)理解題．根據(jù)最后一段But the best alternative to using plastic bags is using cloth bags可知人們可以做的最好的事情以幫助解決塑料袋問(wèn)題是帶自己的布袋購(gòu)物；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．