问题 选择题

2009年 6月1日《中华人民共和国食品安全法》正式实施,法规规定任何食品添加剂目录外的都将不能使用,任何食品都不能免检,权益受损消费者可以要求10倍赔偿.下列食品的处理方法符合《中华人民共和国食品安全法》的是(  )

A.给饲料添加瘦肉精

B.用工业石蜡给水果上蜡“美容”

C.使用三聚氰胺提高牛奶的含氮量

D.蒸馒头时添加发酵粉

答案

A、瘦肉精是动物用药,属于肾上腺类神经兴奋剂,会对人体会产生副作用,故A错误;

B、工业石蜡一般从石油当中直接提取,人体摄入石蜡后,还会造成腹泻等肠胃疾病,故B错误,

C、三聚氰胺对身体有害,不可用于食品加工或食品添加物,故C错误;

D、发酵粉的主要成分是碳酸钠,碳酸钠无毒且能与面粉发酵生成的酸反应能生成二氧化碳气体,气体受热膨胀使面松软多孔,故D正确.

故选D.

阅读理解

Astronauts on shorter shuttle missions (使命) often work very long days.  Tasks are scheduled (安排) so tightly that break times are often used to finish the day’s work.  This type of schedule is far too demanding for long missions on the International Space Station (ISS).  ISS crewmembers usually live in space for at least a quarter of a year. They work five days on and two days off to mimic the normal way they do things on Earth as much as possible. Weekends give the crew valuable time to rest and do a few hours of housework.  They can communicate with family and friends by email, internet phone and through private video conferences.

While astronauts cannot go to a baseball game or a movie in orbit, there are many familiar activities that they can still enjoy. Before a mission, the family and friends of each ISS crewmember put together a collection of family photos, messages, videos and reading material for the astronauts to look at when they will be floating 370 kilometers above the Earth.  During their mission, the crew also receives care packages with CDs, books, magazines, photos and letters. And as from early 2010, the internet became available on the ISS , giving astronauts the chance to do some “web surfing(冲浪)” in their personal time. Besides relaxing with these more common entertainments, astronauts can simply enjoy the experience of living in space.

Many astronauts say that one of the most relaxing things to do in space is to look out the window and stare at the universe and the Earth’s vast land mass and oceans.

小题1:What does the word “mimic” in Paragraph 1 probably mean?

A. Find

B. Copy

C.Change

D.Lose小题2: Which of the following best describes the families of the astronauts on the ISS ?

A.They are caring and thoughtful.

B.They are patient and annoyed.

C.They are impatient and annoyed.

D.They are excited and curious.小题3:In the final paragraph, the author shows that astronauts          .

A.get more pleasure in space than on the Earth

B.find living in space a bit boring and tiring

C.regard space life as common

D.love to see the Earth from space小题4:The passage mainly discusses how astronauts          .

A.work for longer missions in space

B.connect with people on the Earth

C.observe the Earth from space.

D.spend their free time in space

判断题