将下列句子中汉语部分译成英语，注意使用适当的形式，并将答案写在答题卡的相应位置上。
【小题1】Smoking______your health， please give it up.(对……有害)
【小题2】The students often ask Mr Li for some advice on improving______.(英语口语)
【小题3】On weekdays.we must______school before730 in the morning.(到达)
【小题4】Many people nowadays are talking about______,but I know little about it.(黑洞)
【小题5】Now,______the robotic fish， researchers may be able to keep a close eye on fish and discover undersea secrets.(由于，多亏)