课堂探究

　　1．...we were pushed back into our seats because we were trying to escape the pull of the earth's gravity.

　　......由于我们正试着脱离地球的引力，因此被向后推在座位上。

　　考点：pull n．拉（力）；拖；牵引力

　　①高考典句Finally，there was a sudden pull at the pole and a fish was caught.

　　最后，鱼竿猛地一拉，钓上了一条鱼。

　　②To escape the pull of the earth，a rocket must reach a speed of 28,440 km/h.

　　要想脱离地球的吸引力，火箭的速度必须达到每小时28,440千米。

　　考点延伸 （1）阅读下列句子，指出pull的词性及含义。

　　③Pull the door open.Don't push it.

　　把门拉开，不要推。

　　词性：________　含义：____

　　④He pulled the dead dog out of the yard.

　　他把那条死狗拖出了院子。

　　词性：________　含义：______

　　⑤The dentist pulled one of my teeth.

　　牙医拔掉了我的一颗牙。

　　词性：________　含义：______

　　⑥The advertisement pulled young people to the new product.

　　这则广告引起了年轻人对这款新产品的关注。

　　词性：________　含义：______

　　（2）阅读下列句子，指出pull的词组及含义。

　　⑦She pulled on her boots and then left the house.

　　她穿上靴子，然后离家走了。

　　词组：__________　含义：__________

　　⑧The boy pulled his shirt off and threw it onto his bed.

　　这个男孩把衬衣脱掉往他的床上一扔。

　　词组：__________　含义：______

　　⑨Several houses were pulled down to make way for the new road.

　　为了给新修的道路让路，几座房屋被拆毁了。

　　词组：__________　含义：______

　　⑩He pulled in for gas.

他把车开进加油站加油。