依次填入下列各句横线上的词语，恰当的一组是（     ）
（1）看着这种          小姑娘营利的制度，我禁不住想起孩子时候看到过的船户养墨鸭捕鱼的事了。
（2）当听到要写时传祥时，老人就挺激动，同时也有些           ：“现在实实在在干活，本本分分做人还时兴吗？你要写劳模还有人看吗？”
（3）火箭渐渐变成一个小亮点，穿出大气层，在人们的           中消失。
（4）一本只有几十页的小书，居然附有占满两页纸的           表，这可真令人深思。

①良好生态环境也是重要的经济资源

②离开严厉的行政手段，就不能实现经济发展

③经济发展是改善环境的物质基础

④科学的宏观调控是实现经济健康发展的保障

用一根长50厘米的铁丝，把它弯成一个矩形框，设矩形框的一边长为x厘米，面积为y平方厘米，写出y关于x的函数解析式：　____ ．

舟山市某中学进行了“海陆风的现象及其影响”的课题研究，图中，甲、乙两图分别是他们绘制的“滨海地区某日海陆表面气温日变化曲线图（甲图）”和“海陆上空空气运动示意图（乙图）”，请根据所学知识，帮助他们完成下列各题．

    A drug that is used to treat serious bleeding could save thousands of lives of mothers giving birth. A world test of the drug found it reduced (降低) the risk of bleeding deaths during childbirth by nearly one third. The study included 20,000 women in 21 countries, mainly in Africa and Asia. The test was carried out by London School of Hygiene and Tropical Medicine. The drug is called tranexamic acid (凝血酸). It is low-cost and researchers said it does not cause serious side effects (副作用) for mothers or babies.

    The drug is used to treat mothers for serious bleeding during childbirth. Postpartum hemorrhage (产后出血) is the main cause of mothers' death around the world, according to the World Health Organization.

    Haleema Shakur is the project director for the test. She said though medical condition is improved in many countries, serious bleeding after childbirth remains a big problem in some parts of the world. “It's one of the biggest killers of mothers. In Africa and Asia, about 10% of women will end up with serious bleeding.” The drug works after a mother gives birth.

    Shakur said the best results were reported when the drug was given to women as soon as possible after childbirth. “The earlier you give it — within the first three hours after giving birth — the better the result is.”

    The next step will be to provide training for doctors and nurses on how to use it and then to find where the drug is needed. During the test, women were given the drug in a hospital. But researchers are looking for easier ways to use the drug so it can be more widely used in small clinics and the countryside.