1．Look! Some fish are dead. The water in the river must be_______（被污染的）．

2．The bus is old and dirty. It makes my journey_______（不舒服的）．

3．When speaking to a_______（陌生人），you'd better be careful.

4. We have to explore the_______（可能性）of working with them.

5.1 will not pay the_______（增加）in my bills unless you make all this clear.

6. She changed her clothes_______（迅速地）and went outside.

7. The train stopped suddenly and all the_______（乘客）were worried.

8．The cookies are so_______（味道好的）that I can hardly stop eating.

9. Have you ever thought of moving to another_______（行星）．

10.-I will never forgive him for lying to me.

   -Don't say that. _______ all, he has plenty of reasons.

11. -Mum says we are going to stay outside for the whole night, aren't we?

  -Yes. You'd better take your_______ bag if you need some sleep.

12. -Have you guys decided who will be chosen as the new chairperson?

   -Yes. We have reached the_______ that Andy is the best choice.

1．我想知道火星上的食物是不是比地球上的更好吃。

2．我们的地球正变得越来越拥挤和污染。

3．我们班女生的数量仅为男生的三分之一。

4．我们有望在火星上重新开始。

5．我们一致同意这个计划应该尽快执行。

6．你知道将来地球上的生活将会变成什么样吗？

    假如你是李华，热爱科学，你上月随同我国科学家一起去了火星考察，请你结合课本所学内容写一篇90词左右的发言稿，向同学介绍在火星上的所见所闻，要点如下：

1．火星上的生活与地球上的生活不同。 

2．人们有更多的空间。

3．机器人做我们的大部分工作。        

4．火星上有许多购物中心，还有许多网上影院。

5．火星上的交通也很特别，公共交通系统非常舒适，不会产生空气污染。

6．你的感想。