What do the underlined words “a grey area” in paragraph 2 refer to、

试卷相关题目

• 1What makes a virus come to life、

  A.A large chemical molecule.

  B.A dead chemical.

  C.An active virus.

  D.A living cell.

  开始考试点击查看答案
• 2What is this text mainly about、

  A.How viruses should be understood.

  B.The effect viruses have on living things.

  C.How filters are used in studying viruses.

  D.The researches scientists do with viruses.

  开始考试点击查看答案
• 3What is the advantage of upcy cling according to Szaky、

  A.The cost is kept low.

  B.The product is free.

  C.The product has a longer life.

  D.More materials are available

  开始考试点击查看答案
• 4How did Szaky get the idea of upcy cling、

  A.From his visits to foreign companies.

  B.From his studies at Princeton University.

  C.Through shopping at big stores in America.

  D.Through the experience of a business competition.

  开始考试点击查看答案
• 5What do we know about the new industry of upcycling、

  A.It puts waste materials directly into new use.

  B.It promotes completely natural foods.

  C.It buries waste materials in landfills.

  D.It makes organic plant fertilizer.

  开始考试点击查看答案
• 6Which of the following is the smallest in size、

  A.Viruses.

  B.New filters.

  C.Living cells.

  D.Chemical molecules.

  开始考试点击查看答案
• 7With Scotland Travelpass, you can ____.

  A.use Internet service

  B.buy discounted maps

  C.have free use of public transport

  D.enjoy free entry to many museums

  开始考试点击查看答案
• 8One use of the London Pass is to ____.

  A.save you from waiting at some tourist sights

  B.offer you free bus rides throughout London

  C.enable you to shop online with discounts

  D.guide you to London’s best restaurants

  开始考试点击查看答案
• 9Which is most useful if you plan to go to shows in London、

  A.The GBH Pass.

  B.London for Less.

  C.The London Pass.

  D.Scotland Travelpass.

  开始考试点击查看答案
• 10What service can a GBH card offer for a fixed period time、

  A.50% discount for public transport.

  B.Cheap prices for hotels in central London.

  C.A 15-day pass to any attractions in Britain.

  D.Free entry to many British historical places.

  开始考试点击查看答案