13-人教版九年级英语下册第13单元课件.ppt

Unit13;Unit13We’retryingtosave

theearth!;1.Weshouldputupnoticetostopfrom______（乱扔）.

2.Theteacheraskedustofindawaytopickupthecoinsatthe

_______（底部）ofthebottle.

3.Therearenomorefishfor__________（渔夫）tocatchintheriver.

4.Weshouldtakethepaperbagstogoshoppinginsteadofthe

______（塑料）ones.

5.Couldyoupleasetellusanother__________（优点）ofridingbiketo

work?;noisepollution;1b.Listenandcompletethesentences;

1.Theairisbadlypollutedbecausethereare__________ontheroadthesedays.

2.Factoriesthatburncoalalso_________theairwithalotofblacksmoke.

3.Thereisalsotoomuchrubbishandwaste.People_______________

thingseveryday.

4.Peoplearealsolitterin_______likeparks.Thisisturningbeautifulplacesintouglyplaces.;;;Thisisturningbeautifulplacesintouglyones.

turn…into…把……变成……;2.It’sgoodforhealthanditdoesn’tcostanything!

costv.花费；使付出

指花费金钱，主语通常是物。cost的过去式和过去分词均为cost。;take,spend,paycost

take，spend，pay和cost都可以表示“花

费”，但它们的用法各有不同。

1)take多表示花费时间，常用于Ittakessb.sometimetodosth.这一句型中，其中it作形式主语。

e.g.Itusuallytakesme40minutesto

cookthedinner.;2)spend多表示花费时间和金钱，主语通常是人，常用于sb.spend(s)sometime/moneyonsth.和sb.spend(s)sometime/money(in)doingsth.两种句型。

e.g.Davidspent2,000yuanonthenew

machine.

Myfatherspendsanhour(in)

watchingthenewsonTVeveryday.;3)pay多表示花费金钱，主语通常是人，常用于sb.pay(s)somemoneyforsth.句型。

e.g.Tommypaid20yuanforhis

breakfastyesterday.

4)cost多表示花费金钱，主语通常是物，常用于sth.cost(s)(sb.)somemoney.句型。

e.g.ThenewdresscostLinda88yuan.;根据句意用take,spend,pay或cost的适当

形式填空。

1.Thatnewcar________?themlotsofmoney.

2.Mona__________50yuanonthebooksjustnow.

3.Itusually_______?meanhourtodomyhomework.;4.Youshould__________?sometimepractisingyourpronuncia