版高中英语外研版必修三学案Unit 4 Period One IntroductionReading and VocabularyWord文件下载.docx

版高中英语外研版必修三学案Unit 4 Period One IntroductionReading and VocabularyWord文件下载.docx

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3.WhichisbelievedtobethesandsourcetonortheastAsia?

PeriodOne　Introduction&

ReadingandVocabulary

Ⅰ.重点单词

1.adj.吓人的；

可怕的

vt.使惊吓

2.adj.内陆的；

内地的

n.陆地

3.n.进程；

过程

4.n.公民，市民

5.n.沙尘；

灰尘

6.n.力量；

力气

adj.强健的，强壮的

Ⅱ.重点短语

1.砍倒

2.挖

3.突然遭遇（风暴等）

4.由于，因为，作为……的结果

5.一个接一个地

Ⅲ.重点句式

1.so...that...

Theyareoftenthickyoucannotseethesun，andthewindissometimesstrongenoughtomovesanddunes.

沙尘暴常常很大，以至于遮住了太阳，有时风力大得足以移动沙丘。

2.不定式作主语

“wasaterribleexperience，”hesaid.

他说：

“遇上沙尘暴是一种可怕的经历。

”

3.make＋it＋adj.＋todo

Thestormssometimescontinuealldayandtrafficmovesveryslowlybecausethethickdustmakesitdifficult（see）.

暴风有时持续一整天，车辆开得很慢，因为浓浓的尘埃降低了能见度。

Ⅰ.阅读课文，匹配段落大意

1.Para.1　　　　　A.Thedescriptionofstrongsandstorms.

2.Para.2B.TheeffectsofsandstormsonBeijing.

3.Para.3C.ThemeasurestopreventsandstormscomingtoBeijing.

4.Para.4D.Sandstorms，Asianmajordisaster.

5.Para.5E.Whattodoinasandstorm.

6.Para.6F.NorthwestChina，asandstorm

center.

Ⅱ.课文判断正（T）误（F）

1.Sandstormsarestrong，wetwindsthatcarrysand.（　　）

2.Sandstormscomefromthedesertareas.（　　）

3.Thelandbecomesdesertmainlybecauseofclimatechanges.（　　）

4.SandstormsinChinaseemtohaveincreasedinrecentyears.（　　）

5.SandstormsusuallycontinueseveralmonthsinBeijing.（　　）

Ⅲ.课文阅读理解

1.Whatisthebestdescriptionaboutasandstormaccordingtothetext?

A.IthasbeenamajordisasterformanyAsiancountriesforcenturies.

B.Itisstrongwindcarryingsand.

C.Itisawaytocauselandtobecomedesert.

D.Itisakindofnaturaldisasterthatcan’tbetreated.

2.WhatisthemainreasonfortheincreaseofsandstormsinChinarecently?

A.Tobeclosetomanydeserts.

B.TheworseningoftheweatherinChina.

C.Desertification.

D.Cuttingdowntreesanddiggingupgrass.

3.Whateffectsaresandstormsbringingtopeoplelivingincities?

A.Thewholecityisusuallycoveredinathickandbrownyellowdust.

B.Trafficmovesveryslowly.

C.Peoplecan’tbreathewellandthedustmakesthemill.

D.Alloftheabove.

4.Whatisthebestwaytoavoidtheeffectsfromthesandstorm?

A.Tolivefarawayfromdeserts.

B.Tostayathomewhenasandstormhappens.

C.Towearamaskifyouwanttogoout.

D.Toplantmoretrees.

5.WhichofthefollowingisNOTtheelementtomakeCentralAsia，NorthAmerica，CentralAfricaandAustraliathefourmainplaceswheretherearesandstorms?

A.Theclimateintheseplacesisratherbad.

B.Theyarealltheplaceswithbigdeserts.

C.Thenaturalenvironmentintheseplacesisworseningeveryyear.

D.Thegovernmentsintheseplacespaylittleattentiontotheprotectionofnature.

重点词汇

1.Itlastedfortenhoursandwasveryfrightening.

它（这场沙尘暴）持续了十个小时，非常可怕。

[归纳拓展]

（1）frighteningadj.令人害怕的，吓人的

（2）frightenedadj.害怕的

befrightenedof/at/that...害怕……

befrightenedtodosth.害怕去做某事

（3）frightenvt.使害怕

frightensb.away吓走某人

frightensb.todeath把某人吓得要死

frightensb.intodoingsth.恐吓某人做某事

frightensb.outofdoingsth.恐吓某人使其不敢做某事

[语境助记]

（1）Asuddenstopcanbeaveryfrighteningexperience，especiallyifyouaretravellingathighspeed.（2016·

浙江）

突然停下来可能是一次非常可怕的经历，尤其是你正在高速行驶时。

（2）Theboywasfrightenedtospeak.

那孩子吓得不敢说话。

（3）Theyfrightenedtheoldladyintosigningthepaper.

他们恐吓那位老太太签了字据。

[题组训练]

（1）用frighten的正确形式填空

①Thegirlwasbythedog.

②Onseeingtheman’sface，allareaway.

（2）单句改错

Ihada