内容正文:
Unit 1 The Changing World
Topic 2 The population in developing countries is growing faster.
· 词形转换
center
→ (形容词)
India
→ (n./adj)
little
→ (比较级)
difficult
→ (名词)
nature
→ (形容词)
bad
→ (比较级)
know
→ (形容词)
control
→ (V-ing)
face
→ (形容词)
close
→ (形容词)
probable → (副词)
society
→ (形容词)
luck
→ (形容词)
→ (副词)
· 语法 ——现在完成时(II)
现在完成时常与下列副词连用:
already 已经 (多用于肯定陈述句,句中)
yet 尚,还,仍然 (多用于否定句、疑问句,句末)
ever 曾经 (多用于疑问句,句中)
recently 最近 (多用于句末)
never 从不 (多用于否定句,句中)
just 仅仅 (多用于肯定句句中)
before 之前 (一般位于句末)
I. 用just, already, yet, recently, ever, never填空
a. --- Have you been to the West Lake?
--- No, I have been there.
b. I have read the novel twice.
c. Have you finished your work ?
d. I haven’t heard f