填空题：画出细胞分裂过程示意图：______．

画出细胞分裂过程示意图：______．

细胞分裂就是一个细胞分成两个细胞，分裂时细胞核先分成两个，随后细胞质分成两份，每份各含一个细胞核，最后动物细胞的细胞膜从中央向内凹陷，将原细胞缢裂为两个细胞；植物细胞在原来细胞的中央，形成新的细胞膜和细胞壁．

故答案为：

完形填空。
We __1__ English, not learning about English. A student can __2__ all about English, but he __3__ not be able to speak English. There is a __4__ between "learning English" and "learning about English". If you __5__ to learn it well, please __6__ the following things. __7__ , learn the expressions (表达) by heart , learn the __8__ sentence, not single words. __9__ don't __10__ about mistakes. It is important __11__ a good habit from the very first lesson. Just try to say __12__ you want to say and don't care __13__ people laugh at you. Keep on __14__ and you'll make __15__ mistakes.
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