夏天正午蝉鸣叫的最厉害，气温降到24℃以下就停止鸣叫，影响蝉鸣叫的主要非生物因素是[ ]
A．阳光
B．水
C．温度
D．空气
答案：C
用所给单词的适当形式填空。
1. He would like some_____ (noodle).
2. He has two ______ (egg) and some_____(beef) for breakfast.
3. I'd like noodles with _____ (chicken) and _____ (tomato) in them.
4.—What kind of noodles would you_____(like)?
—I'd like_____(have)a small bowl of noodles, please.
5. —Do you like_____(eat) some bananas?
—Yes, I _____ (do).
简述青少年同伴交往的特点。
