第一题：You must be careful before you( ) A.across B.crossing C.cross D.walk cross第二题：---Do you know ( )---It is about 10 minutes' walk from hereA.how far is the post officeB.when does the post officeC.how far the post office isD.when the

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第一题：You must be careful before you( ) A.across B.crossing C.cross D.walk cross第二题：---Do you know ( )---It is about 10 minutes' walk from hereA.how far is the post officeB.when does the post officeC.how far the post office isD.when the
第一题：You must be careful before you( ) A.across B.crossing C.cross D.walk cross
第二题：---Do you know ( )
---It is about 10 minutes' walk from here
A.how far is the post office
B.when does the post office
C.how far the post office is
D.when the post office opens
第三题：Which do you like ( ),purple or green?
I like green( )
A.best best
B.better better
C.best better
D.better best
适当形式填空
第四题：He came to the classroom ,------------（sing）a song.
第五题：He -----（fix）the broken bike when I came in
第六题：After you ------（pass）the seventh tree ,you will see my door
请讲解,50

第一题：You must be careful before you( ) A.across B.crossing C.cross D.walk cross第二题：---Do you know ( )---It is about 10 minutes' walk from hereA.how far is the post officeB.when does the post officeC.how far the post office isD.when the
1 C ( A 是介词,不能作谓语； B 现在分词不能单独作谓语； D WALK 后不能直接接动词）
2 C 宾语从句是陈述语序,排除 A B ,问距离用HOW FAR ）
3 B 两者相比用比较级
4 singing 现在分词作状语
5 was fixing (when 引导的状语从句：当一个动作发生时另一个动词正在进行）
6 pass 主将从现

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第1个选C， before在这里是连词，后面是一个句子you cross。
第2个选C，宾语从句中的语序用正常语序，这里的引导词为how far，后面是the post office is，而不能是is the post office.

第3个选D，第一个空是better，比较级，因为是二选一；第二个空是best，因为这里没有明确的对比范围，就默认范围是所有颜色，所以不能用比较级，要用最高级。

第4个是singing，动名词作伴随状语
第5个是was fixing，这是过去进行时，后面是when引导的时间状语从句
第6个是pass，这个是after引导的时间状语从句，用一般现在时，这里是从句一般现在时，主句将来时

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第一个选C，后面加动词，而D中walk后应接副词改为across
第二个选C，宾语从句中的语序为正常语序，这里的引导词为how far，后面是the post office is，而不能是is the post office.

第三个选D，第一个空是better，比较级，因为是二选一，第二个空也是better，因为这里有明确的对比范围，所以要用比较级。

第四个是singing，都名词作伴随状语
第五个是was fixing，这是过去进行时，后面是when引导的时间状语从句
第六个是pass，这个是after引导的时间状语从句，用一般现在时

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you must be ____(care)when you cross the street. You must be more (care) next time怎么变 You take care We must be strong and carry on, You must be very ____ ,or you will make many mistakes.(care) I think you must be ()(care)with your coat怎么填 I think you must be busy at work,and your homework.Care for your health是什么意思. what i care,must be happy,please! you must be_____(care) next time.为什么 You must take good care ( ) young children You must good care （） young children. You must finish it ____(care) You must be very （）when you cross the busy street.A)care .B)careful .B) carefully随便说明为什么. You must be strong . you must be You must be hungry You must be joking You must be confident. You must be dreaming