文档介绍：Words and expressions
高一英语必修二unit1单词语言点
rare adj. 稀罕的；稀有的；珍贵的
熊猫是稀有动物，需要得到保护。
Pandas are rare animals, which need protection.
It is rare for sb. to do sth. 某人难得/很少做某事
他很少不按时交作业。
It is rare for him not to hand in his homework on time.
高一英语必修二unit1单词语言点
rarely adv. 不常；很少；难得
注：rarely, seldom, never等表示否定意义的副词用于句首时，句子用部分倒装（即一般疑问句形式）
I have rarely seen such a beautiful sunset.
Rarely have I seen such a beautiful sunset.
她很少向我们求助。
She rarely turned to us for help.
Rarely did she turn to us for help.
高一英语必修二unit1单词语言点
valuable adj. 贵重的；有价值的
我想要你给我一些有价值的建议。
I want you to give me some valuable advice.
短语：be valuable to(prep.)...
对······有价值
你的建议对我很有价值。
Your advice is very valuable to me.
value
n. 价值；重要性
be of value to= be valuable to
Your advice is of value to me.
valueless adj.
无价值的；没用的
高一英语必修二unit1单词语言点
survive
⑴ vi. 幸存；生存；生还
A car accident happened to him yesterday, but luckily,
he survived.
昨天他遭遇了车祸，但幸运的是他活了下来。
短语：survive from... 从······中留存下来
许多奇怪的风俗从古代留存了下来。
Many strange customs have survived from earlier times.
高一英语必修二unit1单词语言点
⑵ vt. 经历······后依然存在着；幸免于
其宾语一般是表示事故、战争、疾病或灾难的名词
这个六岁的女孩在地震中幸存了下来。
The six-year-old girl survived earthquake.
n. survival 生存；幸存
survivor
幸存者；残存着；生还者
高一英语必修二unit1单词语言点
in search of 寻找
（of后面接寻找的目标或对象）
为了寻找她的妹妹，他去了北京。
Tony went in search of water.
托尼找水去了。
He went to Beijing in search of his younger sister.
高一英语必修二unit1单词语言点
search
⑴n. 搜寻；寻找
After a long search, they found the lost child at last.
经过长时间的搜寻，他们终于找到了那个走失的孩子。
⑵v. 搜寻；搜查
短语：①search sb./someplace (for sth.)
搜某人的身/搜某地（以寻找某物）
②search for 寻找；搜寻 =look for
为了找我的表，我搜遍了房间的每个角落。
I searched every corner of my room for my watch.
你在找什么？
What are you searching for?
高一英语必修二unit1单词语言点
Exercise:
They were walking around the town___ a place for the party.
A. in search of B. to searc