Ⅳ. 短文填空
Welcome 1. the Great Bear Rainforest in Canada! We will walk through the forest today. It’s 2. (sun) now, but please take a raincoat. I’m sure it will rain later. The trees in a rainforest can 3. (make) their own rain.
How? Well, look up and you will see 4. (cloud) at the top of these trees. Water comes into the air from 5. (leaf), and becomes clouds. It then rains on the forest. This makes other 6. (plant) very happy.
These trees can live 7. thousands of years. They 8. (give) animals somewhere to live and food 9. (eat)...
Now we can see plants 10. (be) so important. They influence the climate, the animals, and the people.

Ⅳ. 1. to 2. sunny 3. make 4. clouds 5. leaves 6. plants 7. for 8. give 9. to eat 10. are

【解析】
1. 考查固定搭配，Welcome to...是固定表达，意为“欢迎来到……”，故填to。
2. 考查词性转换，be动词后需接形容词作表语，sun的形容词形式是sunny，故填sunny。
3. 考查情态动词的用法，情态动词can后接动词原形，故填make。
4. 考查名词复数，cloud是可数名词，此处指树顶的云，应用复数形式clouds。
5. 考查名词复数，leaf是可数名词，此处指树叶，应用复数形式leaves。
6. 考查名词复数，other后接可数名词复数形式，plant的复数是plants，故填plants。
7. 考查介词，“for+时间段”用于表示动作或状态持续的时间，故填for。
8. 考查一般现在时，主语They是复数，一般现在时中谓语动词用原形，故填give。
9. 考查非谓语动词，此处用动词不定式to eat作后置定语，修饰food，表示“吃的食物”。
10. 考查主谓一致，主语plants是复数形式，对应的be动词用are。
【答案】
1. to 2. sunny 3. make 4. clouds 5. leaves 6. plants 7. for 8. give 9. to eat 10. are
【知识点】
1. 固定搭配 2. 名词复数 3. 非谓语动词
【点评】
这道题考查英语基础语法知识与固定搭配，涵盖词性转换、主谓一致等多个考点，解题需结合短文语境，熟练运用相关语法规则，同时能引导学生认识到植物的重要性。