短语积累：

1. place... upon 把......放在上面

2. on your guard against：防范（某人或某物）

3. avoid one's company：不要与某人作伴，不要与某人交朋友

4. shut sth out of sth：拒某物与某物之外，不让参与......

5. take a good look at：好好看...... 看清楚......

6. all day：一整天

7. have no food：不给吃饭

8. speak to：和某人说话

重点短语：

on one's guard（against）

Be on your guard ! He' s a sly old fox. 提高警惕,他是一个狡猾的老狐狸。

I want you to be on your guard and watch your step from now on. 我要你注意检点自己，从此以后，步步当心。

You'd better stay on your guard around your boss. 在老板旁边时，你最好要小心谨慎。

Be on your guard against that fellow; he'll do you down if he gets a chance. 小心提防那个家伙，只要有机会他就要诈骗你。

Be on your guard against bad money. 小心假钞。

shut out of

The money he had stolen he tried to shut out of his mind. 他偷的钱，他则试图忘个一干二净。

The late comers were shut out of the stadium. 迟到者未能进入体育。

He tried to shut all thoughts of her out of his mind. 他尽力不再想与她有关的任何事情。

口语短语：

Shut her out of your conversations. 不要和她说话。

Be on your guard against her. 注意防范她。

Avoid her company. 不要和她交友。

She shall have no food. 她没有饭吃。

Let no one speak to her. 不给任何人和她说话。