内容正文:
选2 Unit 5 课文1 知识点
1. first-aid techniques 急救技能
a blog post 博文;博客帖子
a hospital leaflet 医院传单
a short story 短篇小说;短故事
2. The skin is an essential part of your body and is its largest organ.
1)essential adj. 必不可少的,极其重要的;本质的 n. 【pl.】要素;要点;实质;必需品 ① It is essential that … ……是必要的/至关重要的。(that从句要用虚拟语气,即从句谓语用“should + 动词原形”的形式)
② It is/ was essential (for sb.) to do sth. (对某人来说)做某事是必要的。
③ be essential for/ to … 对……来说是重要的。
④ essence n. 【U】本质,实质,精髓 in essence 从本质上讲
⑤ essentially adv. 本质上;根本上
2. act as 起……作用;担任;担当
3. a barrier against抵御……的屏障
4. the sun’s rays 太阳的光线
(
注意:
1
)在主动语态中,
prevent
/stop
…
from doing
结构中的
from
可以省略;但在被动语态中,
from
不可省。
2
)区分:
keep sb. doing
…
使某人一直做
……
)5. It also helps control your body temperature, prevents your body from losing too much water, warns you when things are too hot or cold, and gives you your sense of touch. 1)helps, prevents, warns,及warns作并列谓语
(
阻止
……
做
……
)2)prevent…(from) doing
keep … from doing
stop