多音字

还hái____       huán____

根据内容及首字母提示完成短文。

    There are four seasons in the year. Then I will i____ the four seasons of the year.

    In the year, the f____ season is spring. Spring is a beautiful season.

    Summer comes a____ spring. It's the h____in a year. In summer there are some persons at home and t____ on the air-conditioner(空调). Summer is hot and sunny. But I like summer very much. Because I can eat some ice-creams and go s____.

    I think autumn is better than summer. Autumn is a wonderful season and a h____ season. In autumn I can eat so many fruit and food. And the trees are golden.

    Winter is the l____ season of the year. In winter I can play s____ with my friends.

    In my city, every season has three m____. The weather of the season is different from that of any other.

给下列图片选择合适的对话。

A. - Do you like singing? - No. I like dancing.

B. - What are they? - They're snakes.

C. - Would you like some meat? - No. I like fish.

D. - Do you like pigs? - Yes. They're lovely.

根据下列材料，概括雾与霾的特点。要求：答案不超过16字。

雾是由贴近地面空气层中大量水汽凝结成小水滴（或结晶）组成的悬浮体。出现雾时，空气中相对湿度大于95%，含水量一般为0．1—1克/立方米，形成人们的视觉障碍，一般情况下，水平能见距离低于1千米，而轻雾能见距离在1千米到10千米之间，给人朦胧缥缈的感觉。

霾由空气中浓度较大，直径很小的烟、尘等颗粒组成，它们形成悬浮体弥漫于空中。出现霾时，虽然没有沙尘暴、扬沙等恶劣天气现象，但大气浑浊，空气相对湿度小于80%。水平能见距离明显缩短，一般在10千米以下，给人不甚透明的感觉。

雾与霾的相同点：____