Unit12 Don’t eat in class
practice 作動詞時，既可作及物動詞，又可作不及物動詞。意思是“練習，實踐”，作及物動詞時，后面可接名詞，代詞或動名詞作賓語。
i have to practice playing the piano every day.
we must practice speaking english as often as we can.
practice 作名詞時，意思是“練習，實踐，訓練”。
practice makes perfect.
it takes a lot of practice to become a good swimmer.
注意：every day 和everyday
every day 是名詞短語， 相當于副詞，常用于作狀語，意思是“每天”。everyday 是形容詞，常放在名詞前作定語， 意思是“每天的，日常的”。
my father walks to work every day.
do you have an english class every day?
the talk show is about everyday life.
we should practice everyday english every day.
10.i have too many rules in my home.
too 在本句中作副詞，意思是“太，過于”，表示超出一定的限度。
the box is too small. i can’t put all the things in it.
he arrived at school too late.
too 常用于 be too +形容詞 ＋ （for sb.）to do 的結構中，表示“太……而不能”.
he is too young to go to school.
the problem is too difficult for me to work out.
too many 意思為“太多”，修飾可數名詞復數形式, too much 意思為“太多”修飾不可數名詞。
there are too many people in the bus.
don’t eat too much meat. it’s bad for your health.
11.and i have to be in bed by ten o’clock.
①句中的in bed 有“睡覺，在床上，臥床”表示抽象意義，通常不加冠詞。
his mother is ill in bed.
it’s too late. why are you still in bed?
don’t read in bed. it’s bad for your eyes.
不用冠詞的詞組：
in class 課堂上 after class 下課后 at school 在學校
in school 在上學 at work 在工作 be in hospital 生病住院
go to school 去上學 go to work 去上班 go to bed 上床睡覺
self check
（1）comprehensive review of all key vocabulary presented in this unit.
ask students to check all the words they know. ask students to find out the meaning of any words they don’t know.
（2）ask students to write five new words in their vocab-builder.
after students have recorded their new words, ask them to share their lists with other students.
(1)this activity provides writing practice using the target language.
draw attention to the pictures. ask students to complete the list of rules.
at last, check the answers.
some exercises:
part one: choose the best answer：
（ ）1. stop ________. listen _______ me, please.
a. talk, to b. to talk, at
c. talking, to d. talking, at