用适当的介词填空

①As a student, you should focus ____ your school work rather than some other things.

②Working in so much noise can cause damage ____ your hearing.

③His laziness and carelessness led ____ his failure in the examination.

④I am still a little confused____ what happened.

⑤I don’t want to make comments  ____ other people’s privacy.

用课文原句填空。
①采菊东篱下，              。（陶渊明《饮酒》）
②夫战，勇气也。          ，再而衰，三而竭。（《曹刿论战》）
③                 ，                 ，国恒亡。（《<孟子>二章》）
④面对困难，我们应该像李白在《行路难》中写的那样：“           ，_________   _。”永不放弃对理想的执著追求。
⑤生活中总会遇到困难和坎坷，但是只要你不气馁，不懈地走下去，一定会达到一个美好的境界，这正如陆游在《游山西村》中所说              ，                。

根据下列语句，画出图形．

已知四点A、B、C、D．

①画直线AB；

②连接AC、BD，相交于点O；

③画射线AD、BC，交于点P．