单选题 Fire can help people in many ways, but it can also be very harmful (有害的). Fire can keep your house (16) , give light and cook food. But fire can burn things (17) . Big fire can burn trees, houses, animals or people.
Nobody knows how people began to use fire. But there are (18) interesting old stories about how a man or woman started a fire. One is (19) a man. The man (20) a very long time ago. He went up the sun and (21) fire down.
Today people know how to make a fire with matches (火柴). Children sometimes (22) to play with them. But matches can be very dangerous. One match can burn a piece of paper, and (23) it could burn a house. A small fire can turn into a big fire very quickly. So you (24) be careful with matches.
Be careful with fire, and it will (25) you. But if you aren't careful with fire, it may hurt you.

【正确答案】 A
【答案解析】keep your house warm意为“使你的屋子温暖”。
【正确答案】 C
【答案解析】表示肯定的“也”应用“too”。A、B均为否定含义。
【正确答案】 B
【答案解析】story为可数名词，故不能用A. much，下旬的one提示等处不能用否定含义的no，故B正确。
【正确答案】 B
【答案解析】about意为“关于”。
【正确答案】 C
【答案解析】“这个人生活在很久以前”，live意为“生活”，work意为“工作”，study意为“学习”。
【正确答案】 A
【答案解析】and连接的并列结构其时态也应一致，前面为一般过去时“went”故后面也应为一般过去时(brought)：“将火(从太阳上)带下来”。
【正确答案】 B
【答案解析】“孩子们有时喜欢玩火柴”，enjoy doing和like to do意义相同。
【正确答案】 C
【答案解析】“一根火柴能烧一张纸，接着就会烧一间房子”，then意为“接下来”，late意为“迟、晚”，yet意为“然而、已经”。
【正确答案】 C
【答案解析】“火柴如此危险，所以你必须小心使用”，A意为“将要”，B意为“能够”，C意为“必须”。
【正确答案】 A
【答案解析】“如果小心使用，火会给我们带来好处(帮助我们)”，A意为“帮助”，B意为“告诉”，C意为“希望”。