题目内容
【题目】Plastic is everywhere because plastic is an extremely useful material．It is cheap, strong and lightweight．What’s more, it can take on nearly any form or shape, from soft and stretchy （有弹性的） to hard and glasslike.
Plastic, however, is far from perfect．It may even be bad for us．Studies now suggest that poisonous chemicals can get out of some types of plastic, get into our bodies, and cause a variety of health problems, including cancer, birth defects and attention deficit hyperactivity disorder （注意缺陷障碍）.
Two types of chemicals in particular have raised special concern lately．They are called phthalates （邻苯二甲酸盐） and Bisphenol-A （二酚基丙烷）, BPA for short． Not all plastic products contain them．But the ones that do are surrounded by controversy （争议）．That’s because experts disagree on how dangerous these chemicals are.
Plastic is a single word, but plastic isn’t just one thing．What all plastics share in common are plasticizers -- special chemicals that allow the material to be changed into nearly any shape or texture．Plasticizers （塑化剂） are added to plastic during the manufacturing process.
Phthalates and BPA are two types of plasticizers that work in different ways．Phthalates add softness to things like shampoo bottles, raincoats and rubber．They are also used in perfumes and makeup．BPA, on the other hand, gives a hard, clear, almost glasslike feel to products such as infant bottles．BPA also appears in food and soda cans, DVDs and other unexpected places.
How do these chemicals get into us? When plastic is heated in the microwave or dishwasher, chewed on or scratched, the chemicals can seep （渗透） out of the plastic．Even though we can’t see them, we eat them, drink them and breathe them in.
Scientists and parents are especially worried about young children, who tend to chew on everything, including plastic．Dozens of countries, including the European Union, Japan, Canada and Mexico have already banned phthalates from products made for children younger than three．California and Washington have done the same．And a number of other states are considering similar rules．As for BPA, Canada became the first country to ban the chemical from baby bottles．A dozen states are considering it.
【1】What can we know about the plastic from the first paragraph?
A．Its characters and effects． B．Its wide use and bad points.
C．Its importance and chemicals． D．Its popularity and advantages.
【2】Which of the following products contains BPA?
A．A soft plastic cup． B．A pencil eraser.
C．A baby milk bottle． D．A new perfume.
【3】Phthalates and BPA can get into us __________．
A．through mouth or nose
B．through blood transfusion
C．by feeling plastic products
D．by heating in the microwave
【4】What is the passage mainly about?
A．A new ban on plastic products．
B．Problems caused by the plastic．
C．Good points of the plastic．
D．The use of plasticizers.
【答案】
【1】D
【2】C
【3】A
【4】B
【解析】
试题分析:本文是一篇科技文，讲述的是有些塑料中的化学成分对人体健康有害。例如，最近引起了人们的广泛关注的塑料中对人体有害的两类化学成分：邻苯二甲酸盐和二酚基丙烷。有些婴儿的奶瓶中包含二酚基丙烷，对婴儿健康造成巨大影响。许多国家采取了一些措施，例如，未满三岁的儿童禁止使用含有二酚基丙烷的奶瓶。
【1】D推理判断题。根据第一段Plastic is everywhere because plastic is an extremely useful material．It is cheap, strong and lightweight．What’s more, it can take on nearly any form or shape, from soft and stretchy to hard and glasslike.可以判断塑料是十分有用的材料。它的优点是便宜，坚韧，轻便。故选D。
【2】C细节理解题。根据第五段 BPA, on the other hand, gives a hard, clear, almost glasslike feel to
products such as infant bottles.可知婴儿牛奶瓶中包含BPA，故选C。
【3】A细节理解题。由第六段 Even though we can’t see them, we eat them, drink them and breathe
them in. 可知塑料可以通过我们的嘴巴、鼻子进入人体内，故选A。
【4】B主旨大意题。根据第二段Plastic, however, is far from perfect. It may even be bad for us. 可以判断塑料并不完美，它也有缺点，因塑料的使用引发了许多问题，故选B。
