(2013·高考天津卷)In some languages,100 words make up half of all words ________ in daily conversations.

A．using?? B．to use

C．having used??? D．used

Seasonal influenza is characterized by a sudden fever, cough, headache, muscle and joint pain, sore throat and runny nose. Most people recover from fever and   1  symptoms within a week without requiring medical attention. But influenza can  2  severe illness or death in people at high risk. The time from infection to illness is about two days.

Yearly influenza epidemics can  3   affect all age groups, but the highest risk of complications occur among children younger than age two, adults age 65 or older, and people of  4   age with certain medical conditions, such as chronic heart, lung, kidney, liver, blood or metabolic diseases, or weakened immune systems.

Seasonal influenza  5   easily and can sweep through schools, nursing homes or businesses and towns. When an   6    person coughs, infected droplets get into the air and another person can breathe them  7    and be exposed. The virus can also be spread by hands infected with the virus.  8    transmission, people should cover their mouth and nose with a tissue when coughing, and  9   their hands regularly.

Drugs for influenza are   10   in some countries and effectively prevent and treat the illness. Some influenza viruses develop  11    to the antiviral medicines, limiting the effectiveness of treatment.

Influenza epidemics occur    12   during autumn and winter in temperate regions. Illnesses result in hospitalizations and deaths mainly among high-risk groups. Worldwide, these annual epidemics result in about three to five million   13     of severe illness, and about 250 000 to 500 000 deaths.

Influenza can cause serious public health and economic problems. In   14    countries, epidemics can result in high levels of worker absenteeism and productivity   15   .   16    most people recover from a bout(轮) of influenza, there are large numbers of people who need hospital treatment and many   17    die from the disease every year.   18     is known about the effects of influenza epidemics in developing countries.

The most    19   way to prevent the disease or severe outcomes from the illness is vaccination. Vaccination is especially important for people at higher risk of serious influenza complications, and for people who live with or care  20    high risk individuals.

(  ) 1. A. its                 B. it’s                    C. all                    D. other

(  ) 2. A. cause                 B. lead                  C. result                D. bring

(  ) 3. A. lightly           B. slightly             C. seriously           D. heavily

(  ) 4. A. all                 B. any                   C. no                    D. both

(  ) 5. A. goes              B. spreads              C. comes        D. happens

(  ) 6. A. to infect        B. infecting           C.  infected          D. infect

(  ) 7. A. off                B. away                 C. out                   D. in

(  ) 8. A. To prevent     B. To protect          C. To prepare         D. To prefect

(  ) 9. A. wash             B. washing            C. to wash             D. washed

(  ) 10. A. free             B. available           C. useful               D. helpful

(  ) 11. A. assistance     B. resistance          C. consistence        D. preference

(  ) 12. A. monthly              B. weekly              C. daily                 D. yearly

(  ) 13. A. pieces          B. states                C. conditions         D. cases

(  ) 14. A. developed    B. developing        C. big                   D. small

(  ) 15. A. lose             B. losses                C. loose                 D. lost

(  ) 16. A. For             B. Because             C. While               D. Whether

(  ) 17. A. /                 B. which               C. do                    D. who

(  ) 18. A. Little           B. Much                C. Few                  D. Lot

(  ) 19. A. affective      B. effective            C. attractive           D. aggressive

(  ) 20. A. about           B. of                     C. for                    D. to

Seasonal influenza is characterized by a sudden fever, cough, headache, muscle and joint pain, sore throat and runny nose. Most people recover from fever and   1  symptoms within a week without requiring medical attention. But influenza can  2  severe illness or death in people at high risk. The time from infection to illness is about two days.

Yearly influenza epidemics can  3   affect all age groups, but the highest risk of complications occur among children younger than age two, adults age 65 or older, and people of  4   age with certain medical conditions, such as chronic heart, lung, kidney, liver, blood or metabolic diseases, or weakened immune systems.

Seasonal influenza  5   easily and can sweep through schools, nursing homes or businesses and towns. When an   6    person coughs, infected droplets get into the air and another person can breathe them  7    and be exposed. The virus can also be spread by hands infected with the virus.  8    transmission, people should cover their mouth and nose with a tissue when coughing, and  9   their hands regularly.

Drugs for influenza are   10   in some countries and effectively prevent and treat the illness. Some influenza viruses develop  11    to the antiviral medicines, limiting the effectiveness of treatment.

Influenza epidemics occur    12   during autumn and winter in temperate regions. Illnesses result in hospitalizations and deaths mainly among high-risk groups. Worldwide, these annual epidemics result in about three to five million   13     of severe illness, and about 250 000 to 500 000 deaths.

Influenza can cause serious public health and economic problems. In   14    countries, epidemics can result in high levels of worker absenteeism and productivity   15   .   16    most people recover from a bout(轮) of influenza, there are large numbers of people who need hospital treatment and many   17    die from the disease every year.   18     is known about the effects of influenza epidemics in developing countries.

The most    19   way to prevent the disease or severe outcomes from the illness is vaccination. Vaccination is especially important for people at higher risk of serious influenza complications, and for people who live with or care  20    high risk individuals.

(  ) 1. A. its                 B. it’s                    C. all                    D. other

(  ) 2. A. cause                 B. lead                  C. result                D. bring

(  ) 3. A. lightly           B. slightly             C. seriously           D. heavily

(  ) 4. A. all                 B. any                   C. no                    D. both

(  ) 5. A. goes                  B. spreads              C. comes            D. happens

(  ) 6. A. to infect        B. infecting           C.  infected          D. infect

(  ) 7. A. off                B. away                 C. out                   D. in

(  ) 8. A. To prevent     B. To protect          C. To prepare         D. To prefect

(  ) 9. A. wash             B. washing            C. to wash             D. washed

(  ) 10. A. free             B. available           C. useful               D. helpful

(  ) 11. A. assistance     B. resistance          C. consistence        D. preference

(  ) 12. A. monthly              B. weekly              C. daily                 D. yearly

(  ) 13. A. pieces          B. states                C. conditions         D. cases

(  ) 14. A. developed    B. developing        C. big                   D. small

(  ) 15. A. lose             B. losses                C. loose                 D. lost

(  ) 16. A. For                 B. Because             C. While               D. Whether

(  ) 17. A. /                 B. which               C. do                    D. who

(  ) 18. A. Little           B. Much                C. Few                  D. Lot

(  ) 19. A. Affective          B. effective            C. attractive           D. aggressive

(  ) 20. A. about           B. of                         C. for                    D. to

What can you do to make sure your car isn't stolen? Well, first and most obviously, 1 the car when you leave it. That includes locking the boot for luggage and closing all the windows. Even a 2 break allows a thief to insert a wire to force open the lock button. Of course, don't leave the keys hanging in the ignition (点火器). And don't hide a 3 key inside or outside the car — thieves know all the hiding places. If your car 4, lock up before you go for help. 5 you can't start the car, a thief may be able to.
Now since dusk to mid-evening are the 6hours for car thieves, make sure you park in a 7 area, where there are plenty of passers-by, 8, near a busy store or a restaurant. Avoid leaving your keys with a garage or parking-lot assistant: choose the place you park 9.
Keep your driver's license in your wallet or purse, 10 in some small separate divisions of your car. You should also have a record of your car's 11 statistics both in your wallet and 12 at home. This can help with recovery 13 stealing.
And finally, it's a good idea to 14 some kind of safety equipment. There is a 15 available from alarm systems that set off a siren (警报) if an 16 is made to force open the car 17 any way, to fuel shut-off systems and time delay ignition systems. A warning sign will also help 18 would-be thieves. They don't want to waste time on trying to steal a 19 car.
So, help yourself put car thieves out of 20 by always locking your car, fixing anti-stealing systems and co-operating with the police by reporting any attempt at stealing.

1. 1.
   1. A.
      start
   2. B.
      open
   3. C.
      lock
   4. D.
      stop
2. 2.
   1. A.
      big
   2. B.
      tiny
   3. C.
      cosy
   4. D.
      long
3. 3.
   1. A.
      useful
   2. B.
      special
   3. C.
      different
   4. D.
      spare
4. 4.
   1. A.
      breaks down
   2. B.
      breaks up
   3. C.
      breaks in
   4. D.
      breaks out
5. 5.
   1. A.
      Only if
   2. B.
      If only
   3. C.
      Even if
   4. D.
      As if
6. 6.
   1. A.
      tiresome
   2. B.
      golden
   3. C.
      dangerous
   4. D.
      nervous
7. 7.
   1. A.
      well-organized
   2. B.
      well-known
   3. C.
      well-educated
   4. D.
      well-lighted
8. 8.
   1. A.
      say
   2. B.
      speak
   3. C.
      tell
   4. D.
      talk
9. 9.
   1. A.
      oneself
   2. B.
      itself
   3. C.
      yourself
   4. D.
      himself
10. 10.
    1. A.
       nor
    2. B.
       not
    3. C.
       or
    4. D.
       either
11. 11.
    1. A.
       extra
    2. B.
       accurate
    3. C.
       common
    4. D.
       vital
12. 12.
    1. A.
       somewhere
    2. B.
       anywhere
    3. C.
       everywhere
    4. D.
       nowhere
13. 13.
    1. A.
       instead of
    2. B.
       in case of
    3. C.
       on account of
    4. D.
       for fear of
14. 14.
    1. A.
       clean
    2. B.
       stick
    3. C.
       fix
    4. D.
       repair
15. 15.
    1. A.
       category
    2. B.
       design
    3. C.
       branch
    4. D.
       range
16. 16.
    1. A.
       announcement
    2. B.
       attempt
    3. C.
       expression
    4. D.
       explanation
17. 17.
    1. A.
       in
    2. B.
       on
    3. C.
       by
    4. D.
       with
18. 18.
    1. A.
       encourage
    2. B.
       inspect
    3. C.
       inspire
    4. D.
       discourage
19. 19.
    1. A.
       protected
    2. B.
       decorated
    3. C.
       furnished
    4. D.
       examined
20. 20.
    1. A.
       control
    2. B.
       sight
    3. C.
       business
    4. D.
       order