一、用 am,is,are 填空。
1. I a boy. You a girl.
2. This T-shirt for her.
3. The coat so big.
4. The snowmen cute and fat.
5. Whose books they?
6. There apple juice on the table.
7. Where your football?
8. We making the bed.

1. am; are 2. is 3. is 4. are 5. are 6. is 7. is 8. are

我们可以结合小学阶段be动词的基础使用规则来解题：主语是I时搭配am，主语是you时搭配are，单数可数名词、不可数名词作主语时搭配is，复数名词作主语时搭配are。
1. 第一空主语是I，对应填am；第二空主语是You，对应填are。
2. 主语This T-shirt是单数物品，对应填is。
3. 主语The coat是单数物品，对应填is。
4. 主语snowmen是snowman的复数形式，对应填are。
5. 主语是they，指代复数事物，对应填are。
6. apple juice是不可数名词，there be句型中不可数名词作主语时be动词用is，对应填is。
7. 主语your football是单数物品，对应填is。
8. 主语是We，是复数人称，对应填are。

二、连词成句。
1. to, us, go,the, let, music, room (.)

2. the, can't, we, road, cross, now (.)

3. school,your, big, so,is (.)

4. are, there, buses, many, the, on,road (.)

5. room, the, art, is, our, on, too, floor, third (.)

6. to, these, I, take, want, the, boxes,to,the, classroom (.)

7. clean, a, what, library (!)

1. Let us go to the music room.
2. We can't cross the road now.
3. Your school is so big.
4. There are many buses on the road.
5. Our art room is on the third floor too.
6. I want to take these boxes to the classroom.
7. What a clean library!

这是小学英语连词成句题，解题时先判断句子句型，找到句首的关键词，再结合课内学过的固定搭配、常用短语组合剩余词汇，最后检查标点和语法是否符合要求：
1. 先找到祈使句引导词Let，结合固定搭配let sb do sth组合词汇；
2. 先找到主语We，结合情态动词用法和固定短语cross the road组合词汇；
3. 先找到主语Your school，后接be动词is，用程度副词so修饰形容词big；
4. 先找到There be句型引导词There are，后接对应名词many buses，搭配地点状语on the road；
5. 先找到主语Our art room，后接be动词is，搭配地点短语on the third floor，副词too放在句末；
6. 先找到主语I，结合固定搭配want to do sth、take sth to sp组合词汇；
7. 先找到感叹词What，用"What a + 形容词 + 名词"的感叹句结构组合词汇。

三、从方框中选择合适的句子补全对话,将序号填在横线上。
A. It's on the first floor.
B. Are there any computer rooms?
C. Let me show you around.
D. Are there any music rooms?
John: Welcome to our school, Amy. 1.
Amy: 2.
John: Yes, there are. We have two computer rooms.
Amy: 3.
John: Yes, there is a big one. We have a music lesson every week there.
Amy: Where is the library?
John: 4.
Amy: Thank you for showing me around.

1.C 2.B 3.D 4.A

我们结合对话的上下文逻辑逐一匹配选项：
1. 第一空前John欢迎Amy来到自己的学校，顺理成章提出要带对方参观，对应选项C。
2. 第二空后John回答“是的，我们有两间电脑室”，说明此处是询问是否有电脑室，对应选项B。
3. 第三空后John的回答提到有一个大场地，每周都在那里上音乐课，说明此处是询问是否有音乐室，对应选项D。
4. 第四空前Amy询问图书馆的位置，此处需要回答具体位置，对应选项A。