阿拉伯半岛与长江中下游地区纬度大体相同，但阿拉伯半岛气候干旱，而长江中下游地区被称为鱼米之乡是因为[ ]

A、纬度位置的差异

B、海陆位置的差异

C、地形的差异

D、人口密度的差异

句型转换。

1. There is some rice in the bag. (改为否定句)

    There ________ ________ ________ in the bag.

2. Children often have a good time on Children's Day. (改为同义句)

    Children often ________ ________ on Children's Day.

3. It starts in May, and goes on to July. (改为同义句)

    It ________ from May to July.

4. She writes to her mother twice a month. (对划线部分提问)

    ________ ________ does she write to her mother?

5. I like apples. I like bananas, too. (合并句子)

    I like apples                                           bananas.