Question

　　Did you know there is a substance that can kill you even if you don't want it? Many adults and children die from it--it's called secondhand smoke. It comes from the smoke that is breathed out by a smoker, as well as the smoke that comes from the end of burning cigarette. It's almost as lethal as smoking a cigarette.

　　Secondhand smoke contains over 4 000 chemicals, and of those, 200 are poisonous（有毒的）and 43 can cause cancer. It causes about 3 000 lung（肺）cancer deaths and 35 000 heart disease deaths to non-smokers each year. Some of the many chemicals breathed in are lead, formaldehyde (a poisonous, colorless gas), benzene (colorless liquid from oil) and ammonia (a smell gas).

　　Every time someone lights a cigarette near you, you are being forced to breathe in all those chemicals. You can get a number of diseases--many incurable（不能治愈的）--from secondhand smoke, but it is especially dangerous for children. It is estimated that secondhand smoke is responsible for between 150 000 and 300 000 lower respiratory（呼吸的）tract（消化系统）infections（感染）in young children and because of this, between 7 500 and 15 000 children are hospitalized each year. So if you smoke, try to give up! Otherwise, avoid smoky areas and breathe fresh air.

(1)The passage is written to tell us ________.

[　　]

A．not to smoke

B．smoking is harmful to smokers and nonsmokers

C．how to give up smoking

D．smoking should be banned in public places

(2)The underlined word “lethal”in paragraph one means ________.

[　　]

A．harmful

B．expensive

C．useful

D．cheap

(3)Which of the following statements about secondhand smoke is right?

[　　]

A．It happens only when there are someone smoking beside you.

B．More than 200 of the chemicals contained in secondhand smoke can cause cancer.

C．Secondhand smoke cause more than 38 000 deaths to non-smokers each year.

D．Secondhand smoke is less harmful to children than it is to adults.

(4)Which of the following words can best describe the author's attitude towards smoking in public?

[　　]

A．Interested

B．Worried.

C．Angry.

D．Sad.

(5)The second paragraph mainly tells us ________.

[　　]

A．the great harm of secondhand smoke

B．the basic parts of a smoke

C．why the number of people getting diseases keeps increasing

D．how to reduce the effect of smoke

Answer 1

答案：B;A;C;B;A
解析：