A.If B.Whether C.And D.Unless 1.have a great/good/nice/wonderful time 过得很愉快 2.wear
（ ）5.You won’t catch the early bus you get up early.
jeans 穿牛仔裤 3.let sb. in/out/by 让某人进来/出去/过去
A.if B.before C.although D.unless
4.let sb. do sth. 让某人做某事 5.be late for 迟到 e.g:Don’t
（ ）6.Please organize some students the trees in our school.
be late for class! 上课不要迟到！6.be sorry (that)… 感到遗憾 A.water B.to water C.watering D.watered 知识剖析：
7.organize sth. for … 为…组织某事 8.If we have it today, half the class won’t come. 如果我们今天聚会，全班有一半的同学将不来参加。
（1）won’t 是 will not 的缩写 if 从句用一般现在时，表示假设，主句用一般将来时。
（2） half (of) the class 半班 half a day 半天 ,half an hour 半个小时
（3）条件状语从句由if或unless引导，表示如果有从句中的动作发生，就会有主句的动作发生。在条件状语从句中，用“主将从现”的原则。即：主句：用将来时、祈使句或含有情态动词的句子；从句：用一般现在时（表将来）
（4）if…：如果…… ， unless…：除非…… ;如果不= if… not…，…. e.g:We will have a meeting tomorrow if Mr. Gao doesn’t
leave for Shanghai.= We will have a meeting tomorrow unless Mr. Gao leaves for Shanghai
根据首字母或汉语提示填空: 1.If you have it today, h the class won’ t come.
2.We tomorrow.(我
们明天将玩得很愉快)
3.If you don’ t work hard ,you’ll (感到后悔)
4.Li Ming o (组织)some students to clean the classroom just
now. 翻译下列短语 过得愉快 去参加聚会
呆在家中 举行聚会
星期六下午 半数同学 感到后悔 乘公车
为考试而准备 制作食品
举行聚会的好时间 ●条件状语从句：
1、在复合句中，修饰主句的动词、形容词或副词等的从句叫 ，用 、 等连词引导的状语从句叫条件状语从句。
2、在条件状语从句中，当主句是一般将来时态、祈使句或含有情
态动词的句子，从句则用 时态。 ●I think I’m going to take the bus to the party. If you do , you’ll be late. 在此句中，动词do用于条件状语从句或答语中，起 作用，使句子更简洁。 ●half的用法
1、 Half the workers come from Shichuan.此句中half意为“一半的”，作形容词用，一般要放在冠词的 .
2、He spent two hours and a half mending his bike.此句中half意为“一半”，作名词用。two hours and a half＝ 。
3、half of ....意为“半数的....”,此结构作主语时,当其后宾语如果是名词或代词的单数形式,谓语要用 当其后宾语如果是名词或代词的复数形式,谓语要用 . （一）单项选择
（ ）1. I’m going to listen to music in class. If you , the teachers
will be angry with you. A.are B.do C.does D.will
（ ）2.If it rain , they’ll going to the park.
A.don’ t B.doesn’t C.won’ t D.isn’ t
（ ）3.Half of his life spent studying English.
A.be B.is C.are D.will
（ ） 7.Who cleaned the blackboard yesterday? ---Tom A.did B.does C.do D.done
（ ）8.If I am not free tomorrow, I fishing. A.don’t go B.won’t go
C.didn’t go
D.am not
( )9. —Did they ___________ a great time yesterday?—Yes.
They enjoyed ____.
A. have, them B. had, they C. have, themselves ( )10 You’d better look up the new word in a dictionary ____ you don’t know it.
A. if B. whether C. though
( )11. The young girl wants to ____ jeans to the party.
A. put on B. dress C. wear ( )12 Half the class ____ now.
A. sings B. is singing C.are singing ( )5. The children will go to park if it ____ tomorrow.
A. isn’t snowing B. won’t snow C. doesn’t snow
（二．）用所给词的适当形式填空。
1. Will you help me ____(make) the food? 2. When is a good time ____(have) the party? 3. If he ____(walk) to school, he’ll be late. 4. If he ____(have) enough time tomorrow, he ____(meet) you in his office.
5. It’s cold. We’d better keep the door ____(close)
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