完成句子
小题1:“They didn’t take measures in time”, the expert said firmly and angrily, “otherwise the explosions ________________.” (happen)
“他们没有及时采取措施，”专家坚定且愤怒地说道，“否则爆炸不会发生。”
小题2:Soon after getting off his horse, the captain appeared at the second storey windows, _______________ nothing but trees. (see)
下马不久，上尉就出现在二楼的窗口了, 从那里除了树木他什么也没看到。
小题3:Rosalyn loves sports. She is proud ________________ competitions and to have broken a record by running 800 meters this year. (participate)
罗莎琳热爱运动。她为今年参加比赛并打破800米赛跑的记录而感到骄傲。
小题4:____________________ should be no reason for treating one’s neighbors as strangers. （occupy）
工作繁忙不应该成为“对面不相识”的借口。
小题5:He went on a bus tour with a group of people, ________________ before. (travel)
他和一群人乘坐巴士旅行，这群人中的大多数以前从没旅行过。
小题6:My son has been away from home for about 2 weeks. I’m looking forward to ___________. (hear)
我儿子离家差不多两周了。我盼望着收到他的来信。
小题7:I think that only in this way ______________ the knowledge and skills needed for my job. (acquire) 我认为只有通过这种方式我才能获得工作所需要的知识与技能。
小题8: _______________ that China produces one third of the world’s cigarettes. (astonish)
令人震惊的是全世界三分之一的香烟是由中国生产的。
小题9:Even though Tony had been so clever, he would have to be rebuilt— you cannot have _________
with machines.(fall)
尽管托尼很聪明，他还得作一番改造——总不能允许女人与机器人相爱吧。
小题10:It’s time for me to quit smoking, for I do hope to live as __________________as my grandfather has. (healthy)
我该戒烟了，因为我真的希望能过着像我的祖父一样长寿健康的生活。
的加速度向右匀加速运动时，小球对绳的拉力和对斜面的压力又分别是多少？（取g= 10 m/s2） 
向右做匀加速运动时，由于a2>a0， 可知这时小球已脱离斜面，所以其受力如图丙所示，故有F2 sinα=mg(竖直)，F2 cosα= ma2（水平）， 
