人教版小学四年级下册英语第四单元导学案·优选.

Unit 4 Then an Now

课前演练

适当形式填空

1.You __________ (be not ) very tall then.

2.There _______________(be) no Internet in my time.

3.Grandpa _______________(can not) use computer then.

4.There ___________ (be) many trees and flowers there ten years ago.

5.___________(read) this story ,please!

英汉翻译

去骑自行车________________ 草坪______________ 饭厅____________ badminton________________ woke_________________ felt______________ easy ___________ look up _______________ everyday _____________ dream___________ every day______________ trip_________________ different_________________

重点单词短语

dining hall 饭厅grass草坪gym 体育馆ago过去cycling 骑车ice_skate滑冰badminton 羽毛球star 星星easy 容易的different不同的active活跃的dream 梦想trip旅游go cycling 去骑自行车look up查阅

重点句子

1.There was no library in my old school.我以前的学校里没有图书馆

2.Tell us about your school,please.请给我们讲讲你的学校吧

3.There were no computers or internet in my time.我那时没有电脑也没有网络

4.Before, I was quiet. Now, I am very active in class.以前我很安静，现在我在

课堂上很活跃。

5.I was short ,so I couldn＇t ride my bike well. Now ,I go cycling

every day.我以前个子小，自行车骑得不好，现在我天天骑自行车。

重难点精讲

1.either 作副词，表示“也”时通常用于否定句中，而且要放在句尾。

He can＇t play football, and I can＇t either.

There was no cars , and ___________________________________________.过去没有汽车，也没有电脑。

2.There was no library in my old school。________________________________. 这是there be 结构的一般过去时态的否定句，表示“某地过去不存在某人或某物”。there be 结构的一般过去时态的肯定句句式为“There was/ were +主语+地点”，其否定句是在was/ were 后加no或not，即：

There + was/ were + no +主语+地点

There +wasn＇t/ weren＇t +主语+地点

There was no bridge over the river= There wasn＇t a bridge over the river.河上以前没有桥。

There were no flowers in the garden.= There weren＇t any flowers in the garden.花园里以前没有花。

“no +单数名词”相当于“not a /an +单数名词”.

“ no +复数名词/ 不可数名词”相当于“not any +复数名词/ 不可数名词”. 。所以上面例句中：no bridge= not a bridge no flowers= not any flowers

There was no boy over there{写出另外一句}

__________________________________________________________________-

There were no apples on the hill{写出另外一句}

there be 的一般疑问句:Were /Was there +主语+地点？

肯定回答：Yes, there was ./ Yes, there were.

否定回答：No, there wasn't / No, there weren't.

--Were there are many birds in the tree?

--Yes, there were.

--No ,there weren't.

Was there any milk in the bottle?(作肯定回答) _______, _______ _______. Were there many fish in the river?(作否定回答) ________, ________ ___________. 注意：如果肯定句中有some，在否定句中和一般疑问句中要变为any。

There were some pencils on the desk.(肯定句)

Were there any pencils on the desk?（否定句）

There were some apples on the tree.(改为一般疑问句)

_______________________________________________________________________________ 3.One day ,I am going to visit the moon._________________________________

be going to 是用现在进行时表达将来的含义的一种结构，通常是指按计划，安排打算要做的事情，基本结构“主语+ be动词+ going to + 动词原形+其他“

I am going to do my homework after dinner.

We are going to make a kite.

__________________________________________________________________他打算踢足球_____________________________________________________________________她打算去骑自行车。

be going to结构的各种句型总复习：

肯定句：主语+ be动词+ going to+ 动词原形+其他

He is going to read a book.

否定句：主语+ be动词+ not + going to+ 动词原形+其他n

She isn＇t going to swim .

一般疑问句：Be 动词+ 主语+ going to+ 动词原形+其他？肯定回答：Yes, 主语+be 否定回答: NO ,主语+ be not.

--Is he going to take a trip?

--Yes, he is. / No, he isn＇t.

4.take 作动词，意为“花费{时间}”，常用于句型“It takes / took {+某人} +时间+to do sth.”.意为：做某事花费某人多长时间.

It took me about two hours to made the snowman.大概花费我两小时去堆雪人。打扫我的房间花费了我大约一个小时的时间。（翻译成英语）

_______________________________________________________________________________ 5.look up 为固定搭配，意思为“（在词典中或通过电脑）查阅”。look up接名词作宾语时，该名词即可以置于look 与up 之间，也可以置于up之后；若接代词作宾语时，该代词只能置于look 与up之间。

You can look up the words in the dictionary.=You can look the words up