四、根据中文意思完成句子
1. 我们学校正在举办一场表演来庆祝这个节日。
Our school ______.
2. 看！我的妹妹雪莉正坐在椅子上玩玩具。
Look! My sister Shirley ______.
3. 他们正在演奏施特劳斯家族的一支名曲。
______ the Strauss family.

1. is having a show to celebrate the festival
2. is sitting on the chair playing with toys
3. They are playing a famous piece of

1. 第一句描述的是学校正在举办表演来庆祝节日，需要使用现在进行时态，结构为be+doing，主语是Our school，所以be动词用is，举办表演可以翻译为“is having a show”，庆祝节日可以翻译为“to celebrate the festival”，用不定式表示目的。
2. 第二句描述的是妹妹正在椅子上玩玩具，同样使用现在进行时态，结构为be+doing，主语是My sister Shirley，所以be动词用is，坐在椅子上可以翻译为“is sitting on the chair”，玩玩具可以翻译为“playing with toys”。
3. 第三句描述的是他们正在演奏施特劳斯家族的一支名曲，使用现在进行时态，结构为be+doing，主语是他们they，所以be动词用are，演奏可以翻译为“are playing”，一支名曲可以翻译为“a famous piece of”，施特劳斯家族可以翻译为“the Strauss family”，因此整句可以翻译为“They are playing a famous piece of”。

阅读短文,回答问题
It's ten o'clock on Saturday. West Street is busy today. Tina and Victoria are walking into a clothes shop. Mr Brown is buying some food and a newspaper in the shop at the corner. Sue and her brother are waiting for a bus at the bus stop.
Let's look at the park in Pole Street. Oh, it's full of children. Grace is playing with her doll. Walter and Harry are feeding a deer as they love animals so much. Little Alfie is crying and pointing to a balloon seller. His mother is reading a newspaper. George isn't riding his bicycle. He is very tired. Sarah is playing the guitar. She is singing with her friends happily. Some kids are playing games under a big tree.
People are having a lot of fun at the weekend.
1. What is Mr Brown doing at the moment?______
2. Who is waiting for a bus?______
3. What is Alfie asking for?______
4. Is George riding his bicycle? Why or why not?______
5. Where are some kids playing games?______

1. Mr Brown is buying some food and a newspaper in the shop at the corner.
2. Sue and her brother are waiting for a bus.
3. Alfie is asking for a balloon.
4. No, he isn't. Because he is very tired.
5. Some kids are playing games under a big tree.