英语口语训练话题：飞行事故

　　有关“飞行事故”的英语口语训练话题资料如下：

　　Every year, some place in the world, an accident involving an airplane occurs. These accidents are painful because of great numbers of passengers that they carry. Although these are few in number, a great, many people die when even one airplane crashes. Even with the problem of terrorism, the chance rate is low for airplane crashes. Statistics show that you are many more times likely to be killed in a car accident than in a plane crash. Thousands of planes fly around the world each minute of every day. Despite this, we rarely hear of air accidents. People use their emotions instead of logic in dealing with the problems of air travel. With the coming of modern emergency measures and air safety, airplane accidents are actually beginning to decline in number. The reasons for airplane accidents are usually because of pilot error. Other problems can come when the plane hits a rocky air stream or rough weather. Regular overhauls of the planes can help to deter many of these mechanical problems. Pilots can also be rotated more to decrease fatigue or other personal hazards. If precautions are taken, many airline incidents could have been avoided.

　　每年，在世界的某些地方都会发生飞行事故。由于飞机承载大量的乘客，所以这些事变让人痛心。只管翱翔事故数目很少，但即便一架飞机坠毁，就会有很多人丧生。事实上，即使有恐怖主义的问题存在，坠机的多少率还是很低的。统计数据表明，绝对坠机而言，一个人更有可能去世于车祸。每天，每分钟，全世界有数千架飞机在飞行。只管这样，咱们仍是很少据说空难。人们在对待飞行问题时，往往凭借情感而非逻辑。随着古代紧急办法跟空中安全的应用，飞行事故的数量实际上开始始终减少。飞行事变通常是由飞行员的错误而引起的。其余问题可能是技能上或电力体系的起因，比喻导航系统。当飞机遇到稳固气流或坏景象时也可能浮现问题。定期检查飞机有助于制止很多技巧问题的发生。可以增加飞翔员轮流值班的次数以减少疲劳和其余个人危险举动的发生。如果采取了防范措施，良多飞行事故都可能避免。

　　语法小结 Grammar

　　英语口语训练话题中的时间状语从句

　　时光状语从句是比较常见的一种状语从句，它能够由when, while, as, before, after, till, until等领导。

　　1.由when, while, as 引导

　　When you think you know nothing, then you begin to know something.

　　当你以为自己一无所知的时候，你就开始知道一些事件了。

　　Strike while the iron is hot.

　　趁热打铁。

　　Our teacher laughed as she spoke.

　　老师边说边笑。

　　留心：when, while 和 as 的差异在于：when 引导的从句的谓语动词可以是连续性动词，也可以是刹时动词，when 有时表现“就在那时”;while 引诱的从句的谓语动词必须是持续性的，强调主句跟从句的动作同时发生，while 有时还可以表示对比;as 表示“一边……一边……”，勾引延续性的动作，个别用于表示主句和从句动作同时产生。

　　2.由before和after引导

　　My father had left for America just before the letter arrived.

　　我爸爸在到信之前去美国了。

　　Please let me know after you decide.

　　你决定后请让我知道

　　3.由till或until引导

　　I didn't go to bed until/till I finished my homework.

　　我作业做完了才睡觉。

　　It was not until the class was over that he began to teach me English.

　　直到下课之后他才开端教我英语。

　　家庭总动员 Do it together

　　两人一组，一方朗诵下面的中文句子，另一方说出相对应的英语口语训练话题的英语句子。

　　1.他走了当前我才晓得这件事件。

　　2.你做完功课当前告诉我。

　　3.你锁门的时候留神到了吗?

　　4.饭前要洗手。

　　5.我下车时看到他了。

　　1.I saw him as I getting off the bus.

　　2.I didn't know that until he left.

　　3.Please wash your hands before eating.

　　4.Tell me after you finish your homework.

　　5.Do you notice that when you lock the door?