Directions: In this section, you will hear a passage, three
times. When the passage is read for the first time, you should listen carefully
for its general idea. Then listen to the passage again. When the passage is read
for the second time, you are required to fill in the blanks numbered from 36 to
43 with the exact words you have just heard. For blanks numbered 44 to 46 you
are required to fill in missing information. For these blanks, you can either
use the exact words you have just heard or write down the main points in your
own words. Finally, when the passage is read for the third time, you should
check what you have written. Too much sun
can cause skin cancer. Too much vitamin D can also make you sick. Yet a study
1 that sunlight and vitamin D may help
some people with lung cancer live longer. Vitamin D helps build
strong teeth and 2 . Foods such as oily
fish and egg yolks are high in vitamin D. But not many foods
3 are. So extra vitamin D is often
4 to milk products. Some people get more with vitamin
products. Another way is from the sun. Vitamin D is known as
the "sunshine vitamin’. The body 5 it
through the skin from the ultra-violet radiation of the sun.
Researchers from Harvard University 6 a
study of four hundred fifty-six people. These men and women had been 7 for lung cancer. The cancers had been found
early. Doctors operated to 8 them. It was found that those 9
. Others who were operated on
in winter had low levels. 10
.
Seventy-two percent were still alive after five years.
11 .