人教版初中英语九年级上册单元写作小专题[4]-课件.pptVIP

单元写作小专题SectionB(3a～3b)

;【单元写作目标】

能描述地球的环境问题、原因及解决问题的建议。

1.能用“usedto，atpresent，however”等词来描述当今的环境变化；

2.能用“Ithinkweshould…/Isuggestthat…/Wedbetter…/Wecould…/Itsagood

ideato…”等句型来提出解决环境问题的建议。

;一、语言积累

(一)Environmentalproblemsandreasons:根据句意及汉语提示完成下列句子。

1.Theriverusedtobeclean，butnowthe________(底部)oftheriveris________(充满着)of________(垃圾).

2.Peopleare________(乱扔)rubbishintheriverandfactoriesare________(倒入)wastewaterintotheriver.Thatswhytheriverbecomesdirtieranddirtier.Asaresult，thereisnomorefishfor________(渔民)tocatch.

3.Alotof________(工业的)wastewatercomesfromthefactories.

;4.Peopleusealargenumberof________(塑料)bagseveryday.Peopleare________(扔)thosebagseverywhere.Thisturnsthebeautifulcitiesinto________(丑陋的)ones.

Whatsworse，theyalsopollutetheearth.

5.Thefactoriesthatburn________(煤)pollutetheairwithalotofblacksmoke.Theair________(污染)isgettingworseandworse.

6.Atpresent，planesarewidelyusedinourdailylife，which，however，makesalotof________(噪音).

7.Manyanimalsareendangeredbecauseofthe________(残酷的)hunting.

;8.Wearentabletoseestarsintheskyjustlikebefore.Theproblemisthatpeopleusetoomuch________(灯光).Anditsalso________(有害的)totheenvironment.

9.Manythingsweusedmaybethrownawayandwehardlyever________(再利用)them.

10.Weusenicepapertowrap(包装)thepresent.Doyouthinkthenicepaperis________(必要)ornot?

;(二)请将以上的环境问题进行分类，将序号填入以下相关的污染类别后。

A:airpollution________

B:noisepollution________

C:waterpollution________

D:wastepollution________

;(三)以下行为会导致哪些污染，请从(二)里选择。

()1.blacksmoke

()2.thehorn(喇叭)

()3.washingclothesintheriver

()4.smokingcigarettes

()5.usethrow－awaychopsticks

;(四)Solutions:根据句意及首字母或汉语提示???成下列句子。

●Tocutdownairpollution

1.Ithinkweshouldntsmokeinp________.

2.Wedbettertakethebusorsubway_