[单项选择]According to the text, fossil studies of radiolaria are significant because they.


A. live in the depths of the ocean
B. are one-celled
C. have survived through the ages
D. demonstrates climatic changes prior to humans

[单项选择]According to the text, fossil studies of radiolaria are significant because they ______.


A. live in the depths of the ocean
B. are one-celled
C. have survived through the ages
D. demonstrate climatic changes prior to humans

[单项选择]According to the fossil reconstruction, what main parts did a tree comprise
A. It comprised a trunk, vertical ridges and palms.
B. It comprised leaves, ferns and palms.
C. It comprised stumps, branches and palms.
D. It comprised a base, a trunk and a crown.

[单项选择]

Text 4
According to studies cited by the National Eating Disorders Association, 42 percent of girls in first through third grade want to be thinner, 81 percent of 10-year-olds are a {raid of being fat, and 51 percent of 9- and 10-year-old girls feel better about themselves if they are on a diet.
In many ways, this fixation on weight at ever earlier ages comes at an inopportune time physiologically. At a recent Hadassah meeting at the Woodlands Community Temple in White Plains, Dr. Marcie Schneider, the director of adolescent medicine at Greenwich Hospital, and Erica Leon, a registered dietitian, spoke about early adolescence as a time when a little hit of pudginess is necessary for proper growth, and youngsters wrestle constantly with their body image.
"I can’t tell you how many kids I’ve seen who’ve been on the Atkins diet, or on the South Beach diet," Ms. Leon said, adding that overweight children who try diets can be a
A. it is too bad for youngsters to be a bit fat.
B. it is necessary for the children to be a bit fat.
C. youngsters should struggle with their body image.
D. overweight children should not diet.

[单项选择]According to the third text, which of the following has almost the same effect as Hypertension drugs
A. Exercise plus a healthy diet.
B. Loss of thirteen pounds in weight.
C. Six months of exercise without drugs.
D. Low-salt and low-fat food.

[单项选择]According to :the text, which is the right description about people with I. Q. 's below 90


A. They can make intelligent judgments on complex issues.
B. What they can read is very simple.
C. They can go to college.
D. They live a humble life.

[单项选择]According to recent studies ______.

[单项选择]According to the text, HDTV
A. has its limitations.
B. is a landmark in TV technology.
C. is likely to be accepted by the mass.
D. is doubted by manufacturers on its practicability.

[单项选择]Which is tree according to the text


A. You can buy books and newspapers in a library at a lower price.
B. You can save money by making more shopping trips.
C. Money does not always bring you the best thing.

[单项选择]Which statement is true according to the text