17．阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。
Lightning is very common but one of the most powerful weather forces to hit the Earth. （1）
（actual），every second about 100 lightning strikes hit （2）
surface of the Earth.In some parts of the world，for example in India，summer lightning storms are very common.With the rainy season（3）
（begin） there，storms often cover most of the country's northern area.The last week in June，the Reuters News Agency （4）
（report） lightning strikes killed more than 100 people in two areas of India.
If you are outside， （5）
（expert） say you should take cover， （6）
means finding a safe shelter for protection.During a lightning storm，no place outside is safe.If you hear-thunder，lightning is close enough to hit you.Most lightning victims are in open areas or near a tree.
If you are indoors during a lightning storm，you could still be （7）
danger.Stay off wired phones，computers and other （8）
（equip） that can put you in direct contact with electricity.Avoid any area with running water and stay away from windows and doors.Specialists at the United States Centers for Disease Control and Prevention say that helping lightning strike victims can save（9）
（they） lives.It is safe （10）
（touch） a lightning strike victim.People struck by lightning do not carry charge.est.Some nutrients are easily lost in cooking if they are cooked in different ways.
