仁爱科普版九年级上册Unit 2 Saving the earth. Topic 1 Section A 学案（含答案）

Unit 2 Topic 1 Section A
【学习目标】
1.能区分一般过去时和现在完成时。
2.能听懂表示环境变化的对话和短文。
【预习导学】
一、生词速查
1.　　 n.肮脏,杂乱;困境
2.　　 n.羞耻,羞愧→What a shame! 真可惜!
3.　　 det.&pron.几个,数个
4.　　 adj.废弃的,丢弃的,无用的→waste v.浪费→waste n.浪费,废品
5.　　 v.污染→pollution n.污染
二、短语速记
1.去野餐 　 　
2.西山 　 　
3.两年前 　 　
4.许多花和草 　 　
5.看见蜜蜂和蝴蝶在舞蹈 　 　
6.几家化工厂　 　
7.把……倒入……里 　 　
8.砍倒 　 　
三、句子速译
1.What a shame!
______________________________________________________________
2..., and you can see bees and butterflies dancing.
______________________________________________________________
3.There were several chemical factories pouring waste water into the stream.
______________________________________________________________
4.Everything has changed.
______________________________________________________________
四、想一想
预习课本1a,回答下列问题。
1.What did the West Hill look like two years ago
______________________________________________________________
2.How is the West Hill now
______________________________________________________________
【答案】
一、
1.mess
2.shame
3.several
4.waste
5.pollute
二、
1.have a picnic
2.the West Hill
3.two years ago
4.lots of flowers and grass
5.see bees and butterflies dancing
6.several chemical factories
7.pour ...into ...
8.cut down
三、
1.太可惜了!
2.……,你能看到蜜蜂和蝴蝶在舞蹈。
3.有几家化工厂向溪水中排放废水。
4.一切都发生了变化。
四、
1.It was a mess.
2.The air is fresh and the water is clean, and you can see bees and butterflies dancing.
【合作探究】
任务驱动一 时态练习
根据句意在横线上填入谓语动词的适当形式
1.Miss Li 　　(leave) here an hour ago.
2.I 　　(watch) the new movie Detective Chinatown 3(《唐人街探案3》)twice. It is a wonderful movie.
3.My parents 　　(lived) in the village for more than 40 years.They are used to everything here now.
4.I 　　(watch) the 2021 Spring Festival Gala Evening on TV at home on the night of the Spring Festival.
5.-　　 you ever 　　(be) to Caozhou Peony Garden
-Yes, I 　　(go) there last year.
◎学法指导:时态是动词的一种形式,动作发生在不同的时间,谓语动词就要用不同的形式来表示。
任务驱动二 小组调查
小组讨论自己熟悉的一个地方的污染情况,每组派代表进行全班展示。
Name of the place In the past now
　　◎学法指导:在小组里调查小组成员熟悉的一个地方的污染,注意各种时态的准确使用。
【答案】
任务驱动一
1.left
2.have watched
3.have lived
4.watched
5.Have　been　went
【知识超市】
[命题点一]see的用法
●...and you can see bees and butterflies dancing...……并且你能看见蜜蜂和蝴蝶在飞舞……。
◎观察思考:1.Yesterday Jenny called up her mother at once when she saw her little brother climbing up a tree.昨天当珍妮看见她弟弟正在往树上爬时,她立刻给妈妈打了电话。
2.Jack saw his mother put the key into her pocket.杰克看见她妈妈把钥匙放进口袋。
◎用法总结:1.see ...doing ...表示“看见 ……正在做 ……”,强调看见时动作正在进行中;
2.see ...do ...表示“看见……做某事……”,强调看见动作全过程。
◎用法拓展:除see之外,其他的感官动词,如hear, watch, notice等也有类似的用法。 如:
David heard someone singing songs in the next door.大卫听到有人正在隔壁房间唱歌。
Every day lots of people go to the Tian'anmen Square to watch the flag go up.每天很多人去天安门广场看升红旗。
I didn't notice Tom go upstairs just now.刚才我没有注意到汤姆上楼。
对点自测
用括号内所给词的正确形式填空
1.When Mom heard her son 　　(cry) outside, she rushed out of the room immediately.
2.I often see the old man 　　(walk) in the park in the evening.
【答案】
1.crying
2.walk
[命题点二]waste的用法
●There were several chemical factories pouring waste water into the stream.有几家化工厂向溪水中排放废水。
◎用法总结1.作动词
waste+n.(尤指时间/金钱)+on/over sth.在某事/某物上浪费……
waste+n.(尤指时间/金钱)+(in) doing sth.浪费……做某事
2.作名词
浪费;废料;废物(不可数)
a waste of...一种浪费……的行为
3.作形容词
废弃的;丢弃的;无用的
如:People shouldn't pour waste water into the rivers directly.人们不应该把废水直接排放到河中。
对点自测
根据汉语意思完成英语句子,每空词数不限
1.地板上有许多废纸。
There is lots of 　　 on the floor.
2.关注你失去的东西是一种浪费时间的行为,而快乐的关键在于享受你所拥有的。
It's 　　 time to pay attention to what you have lost, and the key to happiness is to take pleasure in what you have.
3.别浪费电。出去时关掉灯。
Don't 　　.Turn off the lights when you go out.
【答案】
1.waste paper
2.a waste of
3.waste electricity
2