《2025年系统集成新课程同步导学练测高中英语必修第二册》

6. exist vi. 存在；生活，生存
【归纳拓展】
exist in 存在于……之中
exist on 靠……为生
There exists/existed... 存在……
existent adj. 存在的
existence n. 存在；生存
come into existence 产生；开始存在
be in existence 存在
The world exists，whether you like it or not.
不管你喜欢与否，这个世界照样存在。
There，in the ancient temple，used to exist a big bell，which is now missing.
在这家古寺里，过去有个大钟，现在不见了。
Research opportunities exist in a wide range of areas.
研究机会存在于广泛的领域中。
Scientists have many theories about how the universe first came into existence.
关于宇宙的起源，科学家们有多种理论。
温馨提示
exist 是不及物动词，不能用于被动语态和进行时。
【活学活用】
单句语法填空
①Even though he is a little boy，strange ideas always exist in his mind.
②The old lady became seriously ill last week；she has only existed on milk ever since.
③There exists(exist)a good way to solve the problem at present.
④No one knows when such a custom first came into existence(exist).

答案： 6.①in ②on ③exists ④existence

7. breathe vi. & vt. 呼吸；呼出
【归纳拓展】
breathe in/out 吸入/呼出
breathe one’s last 断气
breathe a deep breath 深吸一口气
breath n. 呼吸
take sb.’s breath away 让人叹绝
draw a breath 吸一口气
hold one’s breath 屏息
catch one’s breath 歇口气，缓一口气；恢复正常呼吸
lose one’s breath 喘不过气来
take a breath 吸一口气
in one breath 一口气，一举
out of breath 喘不过气来
breathless adj. 喘息的；屏息的
breathlessly adv. 气喘吁吁地
He breathed deeply before speaking again.
他深深地吸了一口气，然后继续说下去。
He stood there breathing deeply and evenly.
他站在那里深深地、均匀地呼吸。
Most people don’t realize that they are breathing polluted air.
大多数人没有意识到自己正呼吸着被污染了的空气。
Hold your breath and count to ten.
屏住呼吸，数到十。
My first view of the island from the air took my breath away.
我第一次从空中看到这个岛时，叹赏不已。
【活学活用】
单句语法填空
①If breathed in，they can result in illness or even death.
②Humans take in oxygen and breathe out carbon dioxide.
③He recited the whole poem in one breath.
④We were out of breath after only five minutes.

答案： 7.①in ②out ③in ④of