题干

【自然灾害与防治】

下图示意黑龙江省水稻初霜冻发生概率分布。初霜冻是指在农作物生长季后期因气温降到0℃或0℃以下而使农作物受害的一种农业气象灾害。分析图中R地水稻初霜冻发生概率最大的原因,并为该地区预防水稻冻害提出两条措施。

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答案(点此获取答案解析)

原因:纬度高,气温低,热量条件差;距离冬季风的源地近,冷空气活动频繁;地势较高,气温较低。

措施:培育与推广耐寒水稻品种;加强初霜冻的监测和预报。

同类题4

先读通下面的短文,然后从各题所给的A、B、C、D四个选项中,故答案选出最佳选项。

    It has been some time since(自从) Jack saw the old man. In fact, Jack moved away from the country and was busy 1his work. There, Jack had2 time to think about the past and often had no time to 3 with his wife and son. He was working for his future.

    One day, his mother 4him over the phone that Mr Belser, their neighbour had died and the funeral(葬礼) would be 5Wednesday.It took a long time 6 Jack gave an answer because he had not thought of Mr Belser for a long time. “Well, he didn't 7 you. Every time I saw him, he'd ask 8you were going. He'd 9the days you spent with him, ” Mum told him.

    It had been about two weeks since Mr Belser died. One day, Jack 10 a package(包裹). There, inside was a gold 11.The box was from Mr Belser. Jack's hands shook(晃动) as he read the note inside. “Upon my death(死亡) please give this box to Jack Bennett. It is the thing I value most( 珍视) in my life.” There inside he 12 a beautiful gold packet watch. He opened the cover. Inside he found these words, “Jack, thanks for your 13 !——Harold Belser.”Jack held the watch for a few 14, then called his office and canceled (取消) his meetings for the next two weeks. He needed some time to spend with his wife and son.

    No matter how( 无论怎么样) busy we are, we should always remember to spend some time with the person we love. They are 15part of our life.