四、词汇运用
KEY→P11
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:/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。
lie down safe day be about to as
Animals use their eyes, ears, and nose to live through all weather. Some birds and butterflies fly south for winter. They can tell the 1. are getting shorter and that the weather is getting colder.
Some animals can feel it in the air when danger or a storm 2. happen. When it comes to rain, cows and sheep have a sure sign.
Before it rains, the air becomes humid(潮湿的). Cows and sheep can feel that. So, cows 3. in the field and sheep gather in a close group.
When a storm comes, the air feels heavier. 4. a result, birds fly low. Besides, wolves cry out before a storm comes.
Storms over water, such as typhoons, change water pressure. Sharks can feel the storm coming. They swim down deeper to be 5. .
People can watch animals to know the weather's change. However, the animals' actions might not be because of weather changes. Even so, it doesn't hurt to watch and learn from animals.
素材来源:《ABC互动英语》

本文介绍了一些动物感知天气变化的能力以及它们应对天气变化的方法。
1. days 2. is about to 3. lie down 4. As 5. safe

【解析】
1. 空后be动词为are，说明主语是复数，将day变为复数形式days，句意为：它们能察觉到白天正变得更短，天气正变得更冷。
2. 主语a storm是单数，be about to表示“即将”，be动词用is，构成is about to happen，句意为：当危险或风暴即将来临时，一些动物能在空气中察觉到。
3. 句子主语cows是复数，时态为一般现在时，用动词原形lie down，句意为：所以奶牛躺在田野里，绵羊聚成紧密的一群。
4. 固定搭配as a result表示“结果，因此”，位于句首首字母大写，填As。
5. 空前be动词后接形容词作表语，填safe，句意为：它们游到更深的地方来保证安全。
【答案】
1. days
2. is about to
3. lie down
4. As
5. safe
【知识点】
词形转换
固定搭配
主谓一致
【点评】
本题结合人与自然主题的语篇考查词汇运用，既需要掌握方框内词汇的含义与变形规则，也需要结合上下文语境和语法规则判断正确形式，难度适中，能帮助学生巩固常用短语和基础语法。
【难度系数】
0.7