二、根据首字母提示填空，补全短文
Our ecosystem is like a big, wonderful home for all living things. It i 1 plants, animals, and the environment around us. There are many kinds of w 2 in the ecosystem, from cute little squirrels in the forest to colourful fish in the ocean.
S 3, our ecosystem is in great danger. People are cutting down too many trees, making the forest smaller. T 4, many animals are losing their homes and food. Factories are noisy and give out h 5 gases. These human activities c 6 serious problems. They pollute the air we breathe and the water we drink.
We must take a 7 to protect our ecosystem. We can plant more trees and h 8 activities to tell people how important it is to protect nature. We should s 9 making the environment dirty. For example, after we go on a picnic, we should c 10 the area and take the rubbish away.
Let's work together to protect our ecosystem so that we can keep our beautiful home safe for all living things.
1. 2. 3. 4. 5.
6. 7. 8. 9. 10.

1. includes 2. wildlife 3. Sadly 4. Therefore 5. harmful
6. cause 7. action 8. hold/have 9. stop 10. clean

【分析】先通读全文，明确短文主题为生态系统保护。解题时需结合上下文语境、首字母提示，同时考虑单词的词性、时态及固定搭配，逐一确定每个空的合适单词。
【解析】1. 主语it指代ecosystem，为第三人称单数，一般现在时，结合语境“包含”，首字母i，故填includes；2. 后文举例的松鼠、鱼均为野生动物，首字母w，故填wildlife；3. 句首需副词表转折的负面情况，首字母S，故填Sadly；4. 前后为因果关系，表“因此”，首字母T，故填Therefore；5. 修饰工厂排放的气体，需形容词“有害的”，首字母h，故填harmful；6. 主语activities为复数，表“导致”，首字母c，故填cause；7. 固定搭配take action（采取行动），首字母a，故填action；8. 结合“activities”，表“举办/开展”，首字母h，故填hold/have；9. 固定搭配stop doing sth（停止做某事），首字母s，故填stop；10. 结合“take the rubbish away”，表“清理”，首字母c，故填clean。
【答案】1. includes 2. wildlife 3. Sadly 4. Therefore 5. harmful 6. cause 7. action 8. hold/have 9. stop 10. clean
【知识点】英语词汇运用、首字母填空、固定搭配
【点评】本题以生态保护为主题，通过首字母填空考查学生对基础词汇、固定搭配及上下文语境的理解，贴近生活，难度适中，有助于学生积累环保相关词汇。
【难度系数】0.6