4.Some warm-blooded animals,…they lead an active life…有些热血动物……它们生活活跃……

　　 (1)warm-blooded animals是由“形容词/数词+名词-ed”构成，用来说明事物的特征。

又如：

　　 able-bodied person体格健全的人，cold-blooded animal冷血动物，double-bedded　 room 有双人床的房间,one-eyed man独眼人，three-legged desk三条腿的桌子，white-haired girl白发女孩。

　　 (2)lead/live+a/an+…+life过着……生活。如：

　　 lead a poor (happy,hard,miserable,quiet)life过着贫穷(幸福、艰苦、悲惨，安静)

的生活。

　　 The Smiths have led an active life since their marriage.史密斯夫妇从结婚以来

一直过着快活的日子。

3。Why don't you hire a car and drive around for a couple of weeks? 你为什么不租一辆汽车转一两个星期呢?

　　 a couple of “两个，几”，后接可数名词的复数，只用于口语中。如：

　　 We had walked a couple of miles before we knew. 我们不知不觉已走了几英里。

　　 She'll go abroad to start her own company in a couple of months.她几个月后就要出国开办自己的公司了。

2.Do what you feel like! (Do what you feel like doing!)你想怎么玩就怎么玩吧!

　　 feel like doing=would like to do 很想干……。如：

　　 Do anyone feel like eating something? 有谁想吃点什么吗?

1.在本单元第46课中有这样一句：A good many animals sleep under the snow.There　 is a lot of air in loose snow.这里用了两个表很多的词组，它们是a good many 和a lot of.它们能在换用吗?

　　 在本句不能换用。因为英语中表示“许多”的词语有许多，有的只可以修饰可数句词，

有的只可以修饰不可数名词，有的既可修饰可数名词又可修饰不可数名词。

　　 修饰可数名词的有：much,a great/good deal of,amount of,quite a little.

　　 既修饰可数名词又修饰不可数名词的有：a lot of,plenty of,a large quantity of,

a good supply of.

　　 (1)many a +单数名词作主语时，谓语动词用单数形式。

　　 more than one+单数名词，one and a half+复数名词。

　　 Many a man comes or goes.(=Many men come or go.)很多人来来往往。

　　 One and a half apples is left on the table.桌子上留有一个半苹果。

　　 More than one student has been sent to Japan since 1990.自1990年以来，不只一个学生被送到日本学习。

　　 (2)a great/good many作宾语时，其后一般不跟of，但若名词前有形容词性物主代词，

如his,my和指示代词these,those等时，则其后须加of.如：

　　 A good many of my books were stolen yesterday.昨天，我的许多书被盗了。

　　 (3)a number of修饰可数名词，作主语时谓语用复数，而the number of表示“……的数目”，修饰名词，作主语时谓语用单数。如：

　　 The number of the students is small in this school, but a large number of books are lent in the library.

　　 这个学样学生的数目很少，但可以在图书室里借很多书。

　　 (4)large amounts of+不可数名词作主语时，谓语动词要用复数形式。对比：

　　 Large amounts of money were spent on the bridge.大的量的钱都花在了建桥上。

　　 There is a large amount of work for us to do.大量的工作等待我们去做。

　　 (5)a large quantity of+名词或large quantities of+名词作主语，谓语动词的单复

数与of后的名词的数无关，而与quantity 的数要保持一致。如：

　　 There is a large quantity of students in the classroom.教室里有许多学生。

　　 Large quantities of food are on the table.桌上有很多吃的。

1.show off炫耀，买弄 2.put on 上演，穿上，戴上 3.as to 关于，至于

单元句型思路明晰

31.describe…as…把……描述成……

　　 Lesson 48

30.large/great quantities of=a large/great quantity of(修饰可数名词或者不可数名词)大量的。

　　 You need drink great quantities of water.

　　 [注意点]表达“少量的”用small quantities of,a small quantity of。注意当quantities作主语时，不管后面是可数名词还是不可数名词，谓语都用复数。如：

　　 Large quantities of milk have gone bad.

29.make secret food stores for秘密储藏食物

28.on warm winter days 在冬天暖和的日子里

27.that is to say=that is=in other words换句话说，也就是说

　　 He will come on Wednesday, that is, on 5th January, 2000.