冀教版英语九年级Unit3短语知识点18-35
18. prevent sb./sth.(from) doing sth. =stop sb./sth.(from) doing sth.
组织某人/某物做某事
keep sb. from doing sth.防止某人做某事
keep sb. doing sth. 使某人一直做某事
19. fall off 从......跌落，从......摔下来
20. put out 扑灭，熄灭
21. instead 代替；替代 副词，一般至于句首或句末
instead of 而不是  后接名词、代词或v.ing
22. 变复数时把-f(s)变成-ves的单词
leaf 树叶   half 一半   self 自己   wife 妻子   knife 刀子

shelf 架子   wolf 狼    thief 贼   life  生命

初一英语练习题
英语单词记忆
英语语法练习题

23. be sure 的用法
be sure to do sth. 表示主观判断，认为主语“必然会做某事”
be sure of /about sth./doing sth. 确信（做）某事，对（做）某事有把握
be sure +宾语从句 确信......
24. leave sb./sth. alone 让某人/某物独自呆着
25. experience 经历（可数）；经验（不可数）
26. warn sb. of sth. 警告某人某事
warn sb. (not) to do sth. 告诫某人（不要）做某事
warn sb. against doing sth. 告诫某人不要做某事
27. protect sb. /sth. 保护某人某物
protect sb./sth. from/against  保护某人/某物不受到某物的损害
28. pull over 靠边停车
29. close to 接近，靠近
30. keep an eye out for 注意；警惕
31. learn from sb. 向某人学习
learn from sth. 从某事只能汲取教训
learn to do sth. 学习做某事
32. advise doing sth. 建议做某事
advise sb. (not) to do 建议某人（不要）做某事
give some advice 提一些建议
fellow one’s advice 听从某人的建议
take one’s advice 接受某人的建议
on one’s advice 按照某人的建议
33. watch sb. do sth. 看某人做了某事
watch sb. doing sth. 看某人正在做某事
34. higher and higher 越来越高
比较级+比较级  表示越来越......
35. stay calm 保持冷静
ring sb. ⇔ up 给某人打电话
As the cry was repeated several times, she ran to tell the manager who promptly rang up the fire-brigade.
给某人打电话
ring / phone sb. ⇔ up (Br.E.)
= call sb. ⇔ up (Am.E.) telephone / phone / call sb. give sb. a call
= give sb. a ring (Br.E.) help in sth.

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