题目内容
(2013·吉林长春高中毕业班第一次调研)As the immune system weakens, it loses the ability ________ illnesses.
A.fighting B.fought
C.to fight D.to be fought
C
【解析】C 考查非谓语动词。句意:由于免疫系统衰退,它失去了与疾病抗争的能力。表示“……的能力”,要用不定式作后置定语来修饰the ability。
The Healthy Habits Survey(调查) shows that only about one third of American seniors have correct habits.Here are some findings and expert advice.
1.How many times did you brush your teeth yesterday? ·Finding:A full 33% of seniors brush their teeth only once a day. ·Step:Remove the 300 types of bacteria in your mouth each morning with a battery?operated toothbrush.Brush gently for 2 minutes at least twice a day. 2.How many times did you wash your hands or bathe yesterday? ·Finding:Seniors, on average, bathe fewer than 3 days a week.And nearly 30% wash their hands only 4 times a day—half of the number doctors recommend. ·Step:We touch our faces around 3,000 times a day—often inviting germs(病菌) to enter our mouth, nose, and eyes.Use toilet paper to avoid touching the door handle.And, most important, wash your hands often with hot running water and soap for 20 seconds. 3.How often do you think about fighting germs? ·Finding:Seniors are not fighting germs as well as they should. ·Step:Be aware of germs.Do you know it is not your toilet but your kitchen sponge(海绵) that can carry more germs than anything else? To kill these germs, keep your sponge in the microwave for 10 seconds.
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1.What is found out about American seniors?
A.Most of them have good habits.
B.Nearly 30% of them bathe three days a week.
C.All of them are fighting germs better than expected.
D.About one third of them brush their teeth only once a day.
2.Doctors suggest that people should wash their hands ________.
A.twice a day B.three times a day
C.four times a day D.eight times a day
3.Which of the following is true according to the text?
A.We should keep from touching our faces.
B.There are less than 300 types of bacteria in the mouth.
C.A kitchen sponge can carry more germs than a toilet.
D.We should wash our hands before touching a door handle.
4.The text probably comes from ________.
A.a guide book B.a popular magazine
C.a book review D.an official document