问题 选择题

下列一些事故处理方法中,不正确的是(  )

A.厨房油锅起火,立即盖上锅盖

B.发现重大火情,立即拨打火警电话“119”

C.图书馆的书籍着火,用泡沫灭火器灭火

D.家用液化气起火,首先关闭阀门

答案

A、炒菜时油锅着火,立即盖上锅盖,可以隔绝氧气或空气,从而达到灭火的目的,故A正确.

B、发现重大火情,立即拨打火警电话“119”,故B正确.

C、液态二氧化碳灭火器灭火时不会留下任何痕迹而使物体损坏,能有效保护书籍,所以图书馆的书籍着火,用液态二氧化碳而不用泡沫灭火器灭火,故C错误.

D、立即关闭阀门可以降低气体的温度减小可燃性气体的浓度,使混合气体达不到着火点和爆炸极限,故D正确.

故选C.

完形填空
Everyone in our class loves sports. Every morning       we get up, we do morning exercises. After the second class, we       exercise again. We only have       classes twice a week, but we do physical training(体育锻炼) at five every      . The most popular       is basketball. The       enjoy playing it and many of the girls like it, too. Another popular sport is soccer and in every class there       a lot of students who like soccer very much. Volleyball is often played when the weather is      . We have school teams in basketball,       and volleyball. Our teams often       friendship matches(友谊赛)with teams from other schools. When there is a match,       of us are very excited to go to watch it.
Besides(除…之外) ball games, some of us like track and field events(田径运动),       we often practice running and others. Every term(学期) we have       in these events and once a year we have a       meeting.
Sports help us to keep       and happy. Do you like sports?
小题1:
A.ifB.whenC.beforeD.after
小题2:
A.doB.doingC.didD.does
小题3:
A.EnglishB.ChineseC.P.E.D.music
小题4:
A.morningB.afternoonC.eveningD.night
小题5:
A.sportB.factC.classD.thing
小题6:
A.teachersB.boysC.studentsD.people
小题7:
A.areB.isC.wereD.was
小题8:
A.coldB.rainyC.fineD.hot
小题9:
A.baseballB.tennisC.soccerD.ping-pong
小题10:
A.seeB.haveC.look atD.watch
小题11:
A.muchB.fewC.littleD.many
小题12:
A.becauseB.andC.orD.but
小题13:
A.testsB.partiesC.situationsD.fashion
小题14:
A.runningB.swimming C.sportsD.tennis
小题15:
A.thirstyB.healthyC.tiredD.thin
填空题