2. Thanks to the first aid and safety classes he took at school, he knew that... 多亏了他在学校上的急救和安全课，他知道……
【感知】(1)Thanks to your help, I finished the work on time. 多亏了你的帮助，我按时完成了工作。
(2)Thanks for inviting me to your party. 谢谢你邀请我参加你的派对。
(3)Thanks for your advice. It was very helpful. 谢谢你的建议，它非常有帮助。
【思考】通过观察可知：
Thanks to 后常接 、，意为“”，在句中作 ，表示原因。
Thanks for 后常接 、 或动名词(例如：Thanks for helping me.)，意为“”，用于表达感谢。
【运用】
(1)多亏了消防员，大火被迅速扑灭了。
the firefighters，the big fire was put out quickly.
(2)谢谢你在我生病时照顾我。
care of me when I was ill.

思考:名词;代词;多亏了、由于;状语;名词;代词;因……而感谢
运用:(1) Thanks to (2) Thanks for taking

3. He put out the fire by rolling on the ground. 他通过在地上打滚扑灭了火。
【感知】(1)The firemen put out the forest fire in time. 消防员及时扑灭了森林大火。
(2)You can roll a blanket around yourself to stop the fire. 你可以把毯子裹在身上滚动来灭火。
(3)Remember to throw the burning pan cover away from yourself. 记得把着火的锅盖扔到远离自己的地方。
【思考】通过观察可知，“put out”意为“”。“roll”在这里是“”的意思。“throw”是“”。
【运用】
(1)请勿把燃烧的木头扔进水里。
Please don't the wood into the water.
(2)他通过用灭火器灭火来帮助了我们。
He helped us by the fire with a fire extinguisher.

思考:扑灭;滚动;扔
运用:(1) throw; burning (2) putting out

4. Allen was about to do so when he stopped short. 艾伦正要这么做时，突然停住了。
【感知】(1)I was about to leave when the phone rang. 我正要离开，这时电话响了。
(2)She was about to give up when someone offered help. 她正要放弃，就在这时有人提供了帮助。
(3)He was about to fall asleep when he heard a strange noise outside. 他正要睡着，就在这时听到外面传来一声奇怪的噪音。
【思考】通过观察可知，“be about to”表示“”，常与“”连用，其意思为 。“stop short”意为“”。
【运用】
(1)我正要过马路，这时红灯亮了。
I cross the road the red light turned on.
(2)我们正要开始看电影，就在这时灯突然熄灭了。
We start the movie the lights suddenly went out.

思考:即将、正要; when; 正要……突然……;突然停住
运用:(1) was about to; when (2) were about to; when