内容正文:
Unit2 Topic2 All these problems are very serious.
Section D
【学习目标】
By the end of the lesson, students should be able to:
Words and phrases: avoid, discover, thirsty, nearly, law, shortage, resource, reuse,
take sth. away from…, the shortage of water / water shortage, avoid (doing) sth., make progress in, nearly 3/4 of…
2. Difficult points:
学会归纳话题中的重点语法和表达法。
【预习导学】
必备单词、短语和句子
1 ________________ n.不足;缺少;短缺
2 ________________ v.防止,避免
3 ________________ n.资源,财力
4 ________________ v.发现,找到
5 ________________ adj.缺水的,渴的
6 ________________ n.法律,法令;定律
7.避免犯错误____________________________
8.一天天,逐日____________________
9.缺乏,短缺____________________________
10.浇花____________________________
11.一开始,起初__________________________
12.被…覆盖_______________________
【探究提升】
Section D
1. The sea seems to have the best answer.
seem + adj. (详情参考系表结构)
+ to do sth
It seems that + 从句
2. We can solve the problem of the shortage of water.
① 解决问题:solve / deal with the problem
② the shortage of 缺乏 be short of 缺乏
拓展 be short for… 是……的缩写 = for short
Eg. TV is short for television = We call television TV for short.
3. How can we avoid a serious water shortage?
avoid 避免 v. + sth. / doing sth.
后接动名词的动词?
avoid practice finish discourage enjoy
imagine keep mind prevent regret spend consider(考虑)
4. Third, we should discover ways to reuse water.
① discover 发现 探索 v. discovery 探索 发现 n.
拓展:find, discover 及invent的区别
A. find是较非正式用词,表示找到或发现的意思。
Eg. Please find my hat for me.
B. discover指通过有意识地寻找或查询,发现某种已经存在的现象或事物。
Eg. It was Columbus who discovered America in 1492.
C. invent则表示发明以前不存在的东西。
Eg. Alexander Bell invented the telephone in 1876.
② reuse 重复使用 v. re- 为构词法中的前缀,意为“再一次……”
类似用法:recycle(再循环) retell(重述) return (返回) reform(重整,改革)
5. This is because about 97% of the water on the earth i