2019-2020学年人教版必修二Unit 4 Wildlife Protection grammar课时作业 (3)
2019-2020学年人教版必修二Unit 4 Wildlife Protection grammar课时作业 (3)第3页

  D.they are made from flexible materials

  B [细节理解题。从第三段"Like any electronic device,these high­tech clothes have to be powered.Currently,a tiny nine ­volt battery serves the purpose."可知选B项。]

  2.How will researchers improve these high­tech clothes?

  A.Body heat will be used as power.

  B.The wearer will not get shocked.

  C.A tiny nine ­volt battery will work.

  D.They will get charged automatically.

  A [细节理解题。从第三段"But the researchers hope that in the near future the clothes will generate electricity by using body heat."可知选A项。]

  3.What does the underlined phrase"This handy invention"in Paragraph 5 refer to?

  A.The laptop.

  B.The electronic ski jacket.

  C.The shirt­cum­mobile phone.

  D.The world's first cloth keyboard.

  C [细节理解题。从第五段"Another useful garment is the shirt­cum­mobile phone."及"enables drivers to chat comfortably with others at the wheel"可知选C项。]

  4.The main purpose of the text is .

  A.to advertise for an English company

  B.to predict the future trend of science

  C.to show how rapidly science develops

  D.to introduce some intelligent clothing

D [目的意图题。本文主要介绍的是科学家发明的新型电子衣服及它们的用途,故写作的目的应是向我们介绍这些智能的衣服。]