Unit 13 The water planet (Warming up & Speaking)What do they have in common?Lead-inWithout water, Without water, what would what would happen?happen?• It is very important to all the animals and plants.It’s also important to human beings.• It’s a liquid at room temperature.• Every day you ...

时间:2024-12-07 10:33栏目:中学教育

Model Verbs情态动词 第一部分 情态动词的基本用法情态动词表示可能、必要、允许、愿望、猜测等意义，它们本身虽有一定词义，但不能独立用作谓语、也没有人称和数的区别，其后必有动词原形，共同构成复合谓语。 can 与 could...

时间:2024-11-22 21:16栏目:中学教育