四、词汇运用
KEY→P22
范畴:人与自然 主题:环境保护 体裁:说明文 难度:★★★ 建议用时:5分钟 评价:/5
请认真阅读下面短文,从方框中选择适当的单词或短语,在横线上填入其正确形式。每个单词或短语仅用一次。
tree turn off help do healthy
The first Earth Day was held on April 22, 1970. The theme(主题) of 2025 is “Our Power, Our Planet”. Although this is the 56th Earth Day, there is still much work for us to do 1. make the planet a better place to live.
You can celebrate Earth Day by 2. a neighbourhood clean-up. You can also join in an organized park or beach clean-up activity. Trees are very important for the 3. of the planet. So you can care for our planet by planting trees. 4. take in carbon dioxide(二氧化碳) and help to cool the planet.
You can save water in your home by shortening the shower time. 5. the tap while you are brushing your teeth. Only use your washing machine when it’s full. Another way to help the Earth is to stop using chemicals in your garden.

本文主要介绍了地球日以及为保护地球建议人们做的四件事：进行大扫除、参与种树、节约用水和停止使用化学品。
1. to help 2. doing 3. health 4. Trees 5. Turn off

【解析】
1. 此处表达“我们仍有很多工作要做，目的是让地球成为一个更宜居的地方”，用不定式表目的，help变为to help。
2. 介词by后需接动名词形式，do变为doing，意为“通过开展社区大扫除来庆祝地球日”。
3. 定冠词the后接名词，healthy变为health，意为“地球的健康”。
4. 空格后谓语动词是原形take in，主语要用复数形式，tree变为Trees，句首首字母大写。
5. 此处为祈使句，用动词原形开头，turn off首字母大写为Turn off，表示“刷牙的时候关掉水龙头”。
【答案】
1. to help
2. doing
3. health
4. Trees
5. Turn off
【知识点】
非谓语动词
词形转换
祈使句
【点评】
本题结合环境保护主题考查选词填空的词形变换，需要掌握介词后接动名词、不定式表目的、名词作宾语、祈使句等语法规则，同时结合语境判断正确形式，难度适中。
【难度系数】
0.7

五、短文填空
KEY→P23
范畴:人与自然 主题:人与动物 体裁:说明文 难度:★★★ 建议用时:5分钟 评价:/10
请认真阅读下面短文,在横线上填入一个适当的单词或括号内单词的正确形式。
Lions will die out in many 1. (country) in West Africa. They can't live in most places. 2. number of the lions will become smaller and smaller. A 2015 study predicted that in 20 years some parts of Africa would lose half of the lions. Lions may die out one day on the Earth.
Lions can't live well in Africa. It's because we don't have enough food and places 3. lions. There are too many people on the Earth, 4. we need more food and more clothes. And we need to make money and keep 5. (health). We go into forests and grassland. Lions have to 6. (find) another place but people's footprints are here and there. Lions can't find any 7. (place) or enough food. Lions will die out because of no food. There 8. (be) only a few lions in West Africa now. People are killing lions.
It's time for people 9. (help) lions. But how can we help them? It's a big problem for 10. (we).
英语嗨吧

本文介绍了狮子将会在非洲乃至全球消失的现象以及造成这种现象的原因，呼吁人们保护狮子。
1. countries 考查名词单复数。根据空前 many 可知，此处应用country的复数形式countries。
2. The 考查冠词。“the number of ...”意为“……的数量”。句首单词首字母应大写。
3. for 考查介词。此处指没有足够的食物和地方给狮子。for表示“给……”。
4. so 考查连词。分析句子结构可知，空处前后为因果关系，应用连词so。
5. healthy 考查形容词。keep healthy意为“保持健康”。
6. find 考查动词。have to意为“不得不；必须”，后跟动词原形。
7. places 考查名词单复数。本句为否定句，place为可数名词，前面的any提示此处应使用其复数形式places。
8. are 考查时态和主谓一致。本句时态为一般现在时，后面的a few lions提示此处应该用are。
9. to help 考查动词不定式。it's time for sb. to do sth. 意为“到某人做某事的时间了”。
10. us 考查代词。根据for可知，空处用we的宾格us。