十一、阅读短文，根据短文内容判断对（T）错（F）。
There are so many planets in space. But our planet Earth is our only home. Mars and the Moon have no living things. Only Earth gives us everything we need, such as air, water and food. But our home is in trouble because of pollution（污染）and waste. We see plastic（塑料）in oceans and smoke in the air. This hurts animals and makes Earth sick. We must act now! How can we help? We can use less plastic, reuse（重复使用）old things, save water and plant more trees.
（）1. There are so many planets in space.
（）2. We can live on any planet we want.
（）3. There are also lots of living things on Mars and the Moon.
（）4. Earth is in trouble because of pollution and waste.
（）5. We can use less plastic, reuse old things, save water and plant more trees to help Earth.

1. T
2. F
3. F
4. T
5. T

我们可以对照短文内容逐题判断：
1. 短文第一句直接提到"There are so many planets in space."，和题目表述完全相符。
2. 短文中说明地球是我们唯一的家园，火星和月球都没有生物，我们无法随意在任意星球居住，和题目表述不符。
3. 短文中明确写明"Mars and the Moon have no living things."，说明火星和月球上没有生物，和题目表述不符。
4. 短文中提到"But our home is in trouble because of pollution（污染）and waste."，和题目表述完全相符。
5. 短文最后给出的保护地球的方法就是少用塑料、重复利用旧物品、节约用水、种更多树，和题目表述完全相符。

十二、书面写作。请你根据太阳、地球、月球、火星等的特点和它们之间的关系，写一篇小作文。要求：书面整洁，语句通顺，不少于5句话。
There are some friends in space. They are the Sun, Earth, the Moon and Mars.

The Sun is very huge and hot, it provides light and heat for all the planets. The Earth is our home, there are many lives on it, and it travels around the Sun all the time. The Moon is the satellite of the Earth, it is much smaller than the Earth and moves around our planet. Mars is a red planet, it is also one of the Sun's planets, and it is not far from the Earth in space. People are still exploring these lovely space friends to know more interesting secrets about them.

这道题要求围绕太阳、地球、月球、火星的特征和相互关系写英语小作文，写作时要使用六年级已掌握的简单句型和词汇，先分别介绍各个天体的基础特点，再说明它们的运行关系，保证语句通顺、语法正确，总句数不少于5句即可。