2021高三英语人教版一轮教师用书：选修7 Unit 3 Under the sea

三言两语

1．Rubbish and waste water are being poured

into

the

river ；as a consequence ，water resources

have become badly polluted.

2．We should adopt reducing ，reusing and recycling approaches to solve the problem and take good care of our environment .

3．With the number of cars increasing fast in our city ，our environment is getting increasingly worse.

1．众所周知，由于全球变暖，全球水资源短缺问题正变得日益严重。It is well ­known that the global water

shortage is becoming increasingly severe

mainly due to global warming.

2．现在，越来越多的人开始认识到，目前的环境与我们对地球的所作所为有很大关系。

Now more and more people become aware that the present environment has much to do with what we have done to the earth.

[单词　拼写应用]

核心单词

1．witness v t.当场见到； 目击

n ．目击者； 证人； 证据2．opposite prep .在……对面

adj .相对的； 相反的

[语境运用]　用所给词的适当形式填空1．The year 1849 witnessed (witness) a great war in

that country.2．Scientific studies have shown that making a habit of pausing (pause) before you do something can actually

have a big impact on how your life turns out.

3．He arrived at school early in the morning ，dragging

3．pause v i.&n.暂停；中止

4．drag v t.拖；拉；扯

5．neat adj.〈口〉好的；整齐的；匀称的6．flee v i.逃避；逃跑v t.逃离7．meantime ad v.期间；同时

8．narrow adj.狭窄的；有限的；狭隘的9．shallow adj.浅的；肤浅的；浅显的10．awesome adj.使人敬畏的；令人畏惧的(drag) his heavy instrument case across the campus. 4．People fled (flee) aimlessly in terror as the tsunami struck the city without any precaution.

5．To their relief，their students narrowly (narrow) escaped from the shaking building.

拓展单词1．accommodate v t.提

供住宿

→accommodation

n．住所；住宿

2．deep adj.&ad v.深

的(地)→depth n．深

(度)；深处→deeply

ad v.深深地→deepen

v．使加深；使强烈；

变深

3．urge v t.催促；极

力主张；驱策

[语境运用]　用所给词的适当形式填空

1．It was a scary story and children were scared after

they heard it.(scare)

2．Though the soup is tasty, I've lost my sense of taste

and it tastes just like tasteless water.(tasty)

3．The lake is over 20 meters in depth．So we were all

moved deeply by the man who dived deep into the lake

to save the boy.(depth)

4．Some flowers are reflected in the river and the

reflection is very beautiful.(reflect)

5．If you can't find any accommodations elsewhere,

here is a room which can accommodate up to five

people.(accommodation)

→urgent adj.紧急的；迫切的

4．abandon v t.放弃；遗弃；抛弃

→abandoned adj.被遗弃的；放纵的5．reflect v i.思考v t.映射；反射；思考

→reflection n．反射；反映；映像6．aware adj.意识到的；知道的

→awareness n．意识；认识

7．sharp adj.锐利的；锋利的；敏捷的

→sharpen v．削尖；磨快；尖锐；变锋利8．taste n．味道v．品尝→tasty adj.好吃的；可口的→tasteless adj.无味的9．scare v t.恐吓v i.受惊吓→scared adj.恐惧的；害怕的→scary adj.恐怖的；可怕的6．It is urged that we (should) finish the job in such urgent time.(urge)

阅读单1．anecdote n．轶事；

奇闻

2．migration n．迁徙；

5.jog v i.慢跑

v t.轻推；轻撞

6．pure adj.纯的；纯粹的；

10.steep adj.陡峭的

11．boundary n．界

限；分界线