已知等腰三角形的腰长是6cm，底边长是8cm，那么以各边中点为顶点的三角形的周长

仔细观察下面的图片，回答后面的问题：

（1）图片中的女孩只因别人的一句话而盲目减肥，摧残自己的身体，最终住进了医院。她的这种做法是自尊的表现吗？为什么？

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（2）联系自己的实际情况，谈谈中学生应该怎样才能做到自尊自信？

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句型转换

1. Work hard,and you'll succeed.

   ______ _______,you will succeed.

2. After he finished his work,Henny went home.

   ________ _______ his work,Henny went home.

3. If heated,ice can turn into liquid.

   ____it ______ ________,ice can tum into liquid.

4. No one could tell me where I could get the book.

    No one could tell me ________ ________ ________the book.

5. They saw her enter the room.

  She was seen_____ _____ the room.

6. If we were given more time,we could do it better.

   _________ ___________ ___________,we could do it better.

7. Mr Green thanked us again and again,for he was deeply moved.

   Mr Green,______ _______,thanked us again and again.

8. When he heard the good news,he jumped with joy.

   _________ __________ __________ _________,he jumped with joy.

9. Football is played in more than 80 countries,which makes it a popular sport.

    Football is played in more than 80 countries, _____ it a popular sport.

10. Since you have been given such a good chance,how could you let it slip away?

   ________ _________ ________such a good chance,how could you let it slip away?

进入防汛期后，某地对河堤进行了加固．该地驻军在河堤加固的工程中出色完成了任务．这是记者与驻军工程指挥官的一段对话：

我们加固600米后，采用新的加固模式，这样每天加固长度是原来的2倍．

你们是用9天完成4800米长的大坝加固任务的？

通过这段对话，请你求出该地驻军原来每天加固的米数．

实务2

您是宏远公司行政秘书高叶，下面是行政经理苏明需要您完成的任务。

某鞭炮厂厂长进行安全资格培训，要求其培训时间不得少于( )

A．12学时
B．24学时
C．32学时
D．48学时