高一英语重点知识点总结：Unit4

【摘要】高中如何复习一直都是学生们关注的话题，下面是精品学习网的编辑为大家准备的高一英语重点知识点总结：Unit4

Unit 4 Astronomy: the science of the stars

1. be fundamental to… 对……是基本的，必需的This is fundamental to a true understanding of the book. 这对真正理解这本书十分重要。

2. in sb’s presence 当着某人的面，有某人在场

She asked them not to discuss the matter in her presence. 她要求他们不要当着她的面讨论这个问题。

3. be harmful to… 对……有害的

= do harm to…The air here is harmful to our health. 这里的空气对我们有害。

4. There is no harm in doing sth. 不妨做某事

= It does no harm to do sth.

He may not be able to help but there’s no harm in asking him. 他可能帮不了忙，但是求他一下倒也无妨。

5. exist on… 靠……生存

= live on…They exist on very little food. 他们靠极少的食物生存。

6. exist in… 存在于……中

Several people believe the Devil exists in the world. 少数人认为世界上存在恶魔。

7. in a puzzle 不知如何是好，很迷惑

I am in a puzzle about what he said. 我对他说的话迷惑不解。

8. in time

1)迟早;最后 = sooner or later; eventually

2)及时;不迟 = not late

You’ll learn how to do it in time. 你早晚能学会做这件事的。

Will I be in time for the train? 我赶得上那趟火车吗?

9. give birth to… 生出，产出

She gave birth to a second child in January. 一月份的时候她生了第二个孩子。

The Chinese nation has given birth to many national heroes and revolutionary leaders. 中华民族养育了很多民族英雄和革命领袖。

10. in one’s turn 轮到某人也(做某事)，也They, in their turn, made a proposal. 他们接着也提了一个建议。

11. by turns 轮流，交替

The two brothers looked after their sick mother by turns. 兄弟俩轮流照看他们生病的母亲。

12. in turn 依次

Each man in turn stood up and spoke. 每个人依次站起来发言。