句型转换。

1. Tom thinks they are scary. (改为否定句)

    Tom ______ ______ they ______ scary.

2. Her cousin likes thrillers. (就划线部分提问)

    ______ ______ ______ ______ does her cousin like?

3. I want to see a movie. (改为同义句)

    I want ______ ______ ______a movie.

4. My favorite movie star is Jack Chan. (就划线部分提问)

    ______ ______ your favorite movie star?

5. I like movies and I like Beijing Opera. (改为简单句)

    I like movies ______ ______ ______.

6. She doesn't like to see movies. (改为肯定句)

   She ______ ______ ______ movies.

给你一架天平，一只小烧杯，适量的水，如何测出牛奶的密度？要求：①简要写出实验步骤．②根据你测量的物理量，写出计算牛奶密度的公式．