情景对话。    
1．你的朋友在学习上遇到困难，灰心丧气，请你用一句格言鼓励他。
                                                                                                                                              
2．有的同学乱倒垃圾，请你写一句警示语，要写得诙谐幽默哟！
                                                                                                                                              

【考点】口语交际，情景写话

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