A good lifestyle means one can________.

试卷相关题目

• 1Parents with very young children tend to________.．

  A.stay up till the early hours of the morning

  B.sleep enough to bring most refreshment

  C.rebuild memories stored during the day

  D.store memories in the brain

  E.get up quite early

  F.keep away from coffee in the evening

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• 2Sleep helps brain to________.

  A.stay up till the early hours of the morning

  B.sleep enough to bring most refreshment

  C.rebuild memories stored during the day

  D.store memories in the brain

  E.get up quite early

  F.keep away from coffee in the evening

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• 3Paragraph 4________.

  A.Which is better, being an owl or a lark、

  B.What should we avoid、

  C.Why do we need sleep、

  D.What makes people owls or larks、

  E.What helps us fall asleep、

  F.How much sleep do we need、

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• 4Paragraph 3________.

  A.Which is better, being an owl or a lark、

  B.What should we avoid、

  C.Why do we need sleep、

  D.What makes people owls or larks、

  E.What helps us fall asleep、

  F.How much sleep do we need、

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• 5Paragraph 2________.

  A.Which is better, being an owl or a lark、

  B.What should we avoid、

  C.Why do we need sleep、

  D.What makes people owls or larks、

  E.What helps us fall asleep、

  F.How much sleep do we need、

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• 6It is good advice for most people to________.

  A.stay up till the early hours of the morning

  B.sleep enough to bring most refreshment

  C.rebuild memories stored during the day

  D.store memories in the brain

  E.get up quite early

  F.keep away from coffee in the evening

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• 7What is used to describe the communication network consisting of cells in the immune system、

  A.The immune system’s memory．

  B.Immune troops eliminating intruders．

  C.Bees flying around a hive．

  D.A sea of microbes．

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• 8The immune cells and other cells in the body coexist peaceably in a state known as

  A.self-tolerance

  B.balance

  C.harmony

  D.tolerance

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• 9How do the immune cells recognize an antigen as“foreign”or“nonself”、

  A.Through an allergic response．

  B.Through blood type．

  C.Through characteristic shapes on the antigen surface．

  D.Through fine hairs protruding from the antigen surface．

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• 10Which of the following statements is true、

  A.Allergens are usually harmful substances．

  B.Antigens can trigger an immune response．

  C.People with antigens do not suffer from obvious responses．

  D.There is no difference between an antigen and an allergen．

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