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1、Unit 6When was it invented?第四課時Section B (1a1e) salty形容詞，意為“咸的；含鹽的”，是由名詞salt加上y構(gòu)成的，類似的形容詞還有tasty，smelly，sunny，cloudy等。 Potato chips were invented by mistake.薯條是被無意中發(fā)明的。by mistake意為“錯誤地；無意地”。在此短語中mistake要用單數(shù)形式，且前面不能用冠詞。【拓展】make a mistake犯錯誤mistake.for.把錯認(rèn)為 The customer was happy in the end.最后顧客滿意了。in

2、 the end意為“最后，最終”，相當(dāng)于at last/finally。eg：They were out of danger in the end.最后他們脫險了?！就卣埂縤n the end不能與of連用，可放在句首，也可放在句末。at the end of.后接地點名詞，表示“在的盡頭”；后接時間名詞，表示“在結(jié)束時”。eg：at the end of the road/month在這條路/這個月的盡頭by the end of意為“在以前，到為止”，常與將來時態(tài)或過去完成時態(tài)連用。eg：By the end of last month，we had learnt over ten En

3、glish songs.到上個月底為止，我們已經(jīng)學(xué)會了十多首英文歌曲。 enough的用法enough作形容詞，意為“足夠的；充分的”，后接名詞；作副詞，意為“足夠地；充分地”，總放在被修飾的副詞或形容詞之后。eg：I have enough food to eat.我有足夠的食物吃。(修飾名詞)The book is easy enough for your children to read.這本書對你的孩子們而言很簡單。(修飾形容詞)They cant walk fast enough.他們走得不夠快。(修飾副詞) 一、根據(jù)句意選擇方框中的單詞并用其適當(dāng)形式填空。1I dont like

4、drinking lemon juice because its too 2The supermarket is usually crowded with lots of on weekends.3Jane likes cookies.They are dry，hard and easily broken (易碎的)4The boy got to the top of the mountain in the 5Dont add too much salt in the soup，or it will be too sourcustomerscrispyendsalty二、單項選擇。( )6.T

5、he woman took my bag _ mistake.AforBat Cof Dby( )7.My little sister isnt _ to look after herself.(易錯題)Ayoung enough Benough young Cold enough Denough old( )8.The potato chips have been in the paper bag for half an hour.They are not _ any more.Acrispy Bsweet Csalty Dsour( )9.Its 9 oclock now.I must g

6、o.Its raining outside.Dont leave _ it stops.(原創(chuàng)題)Awhen Bsince Cwhile Duntil( )10.Please give this book to a boy _ Zhang Ming.Acall Bcalled Ccalling Dto callDCADB三、從方框中選出適當(dāng)?shù)木渥友a全對話。A：I have some potato chips.Do you want to eat?B：No，thanks.11._A：What do you mean？Why was it an accident?B：Well，they were

7、invented by a cook called George Crum.12._ He ordered a plate of fried potatoes.When the potatoes came，he said they were cut too thick and sent them back to the kitchen.A：So what happened?B：Well，George was angry，so he cut the potatoes very thin，and he cooked them for a long time until they were cris

8、py.And he put lots of salt on them so they were really salty.13._A：And?B：14._ He told the other customers about them，and soon everyone was ordering potato chips.A：15._ How interesting!BDACEAHe thought the customer would hate them.BOh，do you know that potato chips were invented by mistake?CAnd the customer loved them and asked for more.DOne day，a customer came into the restaurant where George worked.EAnd we are still eating them today.