1, nutrition is for people to maintain,,,

And other biological processes, and after digestion, absorption and utilization of its nutrients, namely nutrients.

2. Environmental protection is a basic national policy of China. The natural environment means,,,

Wait. ; Social environment refers to,,, etc. Protecting and transforming the natural environment is the basic need of people's healthy life. Environmental protection is everyone's responsibility.

The best way to supplement calcium is to bask in the sun.

4. The weight of exercise system accounts for about 60% of human body weight.

The purpose of losing weight is not only to lose weight, but more importantly, to eliminate the redundant _ _ _ _ _ _ in the body.

6. The purpose of the step test is to test students' _ _ _ _ _ _ _ _.

7. The vital capacity of junior middle school students is generally _ _ _ _ _ _ _ _ _ _ _ _ _ _ ml for boys and _ _ _ _ _ _ _ ml for girls.

1, insist on aerobic exercise can enhance people's cardiopulmonary endurance and promote people's health. The following belongs to aerobic exercise (C).

① Boxing, jogging, high jump, weightlifting, swimming, skipping rope and cycling.

A.①②④⑦ B.②③⑤⑥ C.②⑤⑥⑦ D.①④⑤⑥

The 29th Olympic Games in 2008 will be held in Beijing, China. On the right is the emblem of Beijing Olympic Games-Chinese seal. Dancing Beijing. The following description is unreasonable (b).

A. The emblem takes the seal of China traditional cultural symbol as the expression form of the symbol main pattern, and chooses Chinese traditional color as the theme benchmark color, which embodies the cultural characteristics of China, represents the nation and the country, and represents joy and harmony.

The main part of B's works is shaped like "respect" and "people" dancing with open arms, which fully embodies ancient and modern China and conveys friendliness, sincerity and enthusiasm.

C. The work is cleverly transformed into a human figure running forward and welcoming victory, which fully embodies the Olympic purpose of being faster, higher and stronger, emphasizes the athlete-centered, healthy and progressive spirit, and is full of movement and vitality.

The curved strokes in D's works symbolize the track of track and field, imply the venue of the Olympic Games and embody the characteristics of the Olympic Games.

3. The three main culprits that harm human health in cigarettes are (B)

① Carbon monoxide ② Nicotine ③ Carbon dioxide ④ Smoke tar

A.①②③ B.①②④ C.②③④ D.①③④

4. The sports represented in the picture below are correct (you can't answer without the picture)

A. Weightlifting, water sports, track and field, basketball B. Weightlifting, water sports, gymnastics, handball

C. Track and field, diving, gymnastics and basketball D. Weightlifting, diving, gymnastics and basketball