短文填空: 根据上下文和括号里的汉语提示, 在下面短文的空白处写出正确的单词或短语, 使短文意思完整.
All over the world people enjoy sports. Sports help people to keep healthy, happy and to live longer.
Many people like to __1__ (观看) others play sport games. They buy tickets or turn on their TV set
to watch the games. They often __2__ (感到) very very happy when "their" player or team wins.
People play different games in winter and summer. Summer is __3__ (有利于) swimming. And in
winter people often go skating.
Some sports are very interesting and people everywhere are in them. __4__ (例如), football is very
popular. In China most people, men, women, boys and girls like to watch football games. They often
__5__(谈论) it. Some people often __6__ (踢足球). Running and jumping began __7__ (很久,很久
以前). But basketball and volleyball are rather new. People began to play them __8__ (不久以前).
And people are starting new sports or games all the time. Water skiing is one of the __9__ (最新的).
People from __10__ (不同的国家) may not be able to understand each other, but after a game
they often become friends.
时（T为交流的周期），原线圈中的电流瞬时值为0.03A．变压器的原、副线圈的匝数比为（ ）
：3
