内容正文:
Unit2 Topic1 Pollution has caused too many problems.
Section A
【学习目标】
By the end of the lesson, students should be able to:
1.掌握本课的重点词汇和短语,巩固一般过去时和现在完成时的用法和区别。
Words and phrases: bee, butterfly, mess, shame, several, pollute, waste, villager, destroy, cut down, goodness, pour, see sb./sth. do sth., see sb./sth. doing sth., cut down, my goodness
Sentences: What a shame! / What a mess!
The flowers and grass have gone!
What has happened here?
There be sth./sb. doing sth.
There are several factories pouring waste water into the stream.
Everything has changed.
Grammar: differences between Simple Past and Present Perfect tense.
2.能够用一般过去时和现在完成时描述过去和现在的变化。
正确使用there be sth./sb. doing sth.来表达“有某人/物正在做某事”。
Difficult points:
正确使用there be sth./sb. doing sth.来表达“有某人/物正在做某事” 。
区别使用短语see sb./ sth. do sth.和 see sb. / sth. doing sth.。
能正确地以口头和书面形式区别使用一般过去时和现在完成时。
【预习导学】
必备单词、短语和句子
1 ________________ n.蜜蜂
2 ________________ n.蝴蝶;蝶泳
3 ________________ n.肮脏,杂乱;困境
4 ________________ n.羞耻,羞愧=pity
5 ________________ det.&pron.几个,数个= a few
6 ________________ v.倒出;倾泻;不断流出
7 ________________ adj.废弃的n.废料v.浪费
8 ________________ n.村民,乡下人
9 ________________ v.破坏,毁坏
10 ________________ 砍倒
11 ________________ v.污染
12 ________________ n.天哪;啊呀
13.bear to do sth. /bear doing sth___________________________
14.__________________________和…几乎一样差
15.___________________________据报道…
16.several hundred / thousand / million / billion _________________________
17.pour … into…_____________________________
18.You could see bees and butterflies dancing.________________________________
19.The flowers and grass have gone.___________________________________
20.What’s worse, the factory makes too much noise.____________________________
21.There are several chemical factories pouring waste water into the stream.___________________________
22.Everything has changed.______________________________
答案:
1 bee n.蜜蜂
2 butterfly n.蝴蝶;蝶泳
3 mess n.肮脏,杂乱;困境
4 shame n.羞耻,羞愧=pity