If you hear the fire bell, _____ cool and don’t panic.

A. keep   B. to keep        C. keeping       D. kept 

A


解析:

if引導(dǎo)的是條件狀語從句，填空句為主句，而此主句為一祈使句，故動(dòng)詞用原形。

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科目：高中英語 來源： 題型：閱讀理解

If a person forgets names , places or facts —and has trouble with everyday things like reading or shopping —it may not mean you are getting old . It could be Alzheimer’s disease . So it’s important to see a doctor as soon as you can .
There is no cure for Alzheimer’s . But a drug called ARICEPT has been used by millions of people to help their symptoms (癥狀).
In studies , ARICEPT has been proved to work for Alzheimer’s . It has helped people improve their memory over time . It has also helped them to keep doing everyday things on their own .
Ask your doctor if ARICEPT is right for you or your loved one . It is the Number One drug for Alzheimer’s in the world . The sooner you know it’s Alzheimer’s , the better ARICEPT can help .
ARICEPT is good for many but may not be good for everyone . Some people may experience not sleeping well , feeling very tired , or not wanting to eat . In studies , these side effects weren’t serious at all and went away over time . Some people taking ARICEPT may feel light-headed . In this case you should tell your doctors because your condition may get worse

  1. 1.

    If one suffers from Alzheimer’s ,

    1. A.
      he can’t do everyday things on his own
    2. B.
      he has trouble with his memory
    3. C.
      he often forgets things because he is old
    4. D.
      he can’t move about
  2. 2.

    What is ARICEPT ?

    1. A.
      A medicine to cure Alzheimer’s
    2. B.
      A medicine to delay signs of aging
    3. C.
      A medicine to cure brain damage
    4. D.
      A medicine to reduce the symptoms of Alzheimer’s
  3. 3.

    One who is taking ARICEPT should go to see a doctor if he

    1. A.
      feels like a drunken man
    2. B.
      feels tired out
    3. C.
      has no desire to eat
    4. D.
      can’t fall asleep

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