如：It is often rainy here in spring.这⼉的春天经常是有⾬的。

If it is rainy tomorrow,Ill stay at home.如果明天是有⾬的，我将呆在家⾥。

21⽐较级

注意只有同类事物才可进⾏⽐较。

如：My eyes are bigger than hers.Your school bag is heavier than mine.My computer is nicer than Nancys.My brother is stronger than me.

22have,has

表⽰某⼈有(has⽤于第三⼈称单数)；There is/are;

There was/were表⽰某地存在有

注意There be句型的就近原则

单数或不可数⽤there is/was;

复数⽤there are/were.

23本⾝就是复数的词

眼镜glasses;⽿机earphones;鞋shoes;裤⼦trousers等词本⾝是复数。

如：My glasses were on the chair just now.

但如果表⽰这双，这副，⼀双的时候⽤单数

如：There is a pair of chopsticks on the plate.This pair of earphones is for you.24五个元⾳字母：Aa,Ee,Ii,Oo,Uu;

25⼀个的⽤法

a⽤于辅⾳前不是辅⾳字母前；an⽤于元⾳前不是元⾳字母前。

如：There is an s,a t,a u,a d,an e,an n,and a t in the word student.

26时间表⽰法

有两种：

（1）直接读时钟和分钟。

如6:10读成six ten;7:30读成seven thirty;8:45读成eight forty-five;

(2)⽤to与past表⽰。

在半⼩时包括半⼩时以内⽤⼏分past⼏点

如：6：10读成ten past six;7:30读成half past seven;

过了半⼩时⽤下⼀个钟点差⼏分

如7：45读成a quarter to eight;9:50读成ten to ten;

27基数词变序数词的.⽅法

基变序有规律，结尾加上th;⼀⼆三特殊例，结尾字母t、d(即first,second,third);⼋去t，九去e，ve要⽤f替（即eigheighth;nineninth;five--fifth;twelvetwelfth）；ty改y为ie后加th别忘记(即整⼗数如twentytwentieth；fortyfortieth);

⼏⼗⼏⼗位为基个位为序（如第⼆⼗⼀为twenty-first）。

另外强调序数词前⼀定要加the。

28⽇期的表⽰法

⽤the+序数词+of+⽉

如:三⽉三⽇the third of March;

12⽉25⽇the 25th of December.

29both表⽰两者都

如：My parents are both teachers.

all表⽰三者以上都

如：The students are all very excited.