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    We know the mosquito very well. Mosquitoes fly everywhere. They can be found almost all over the world, and there are more than 2,500 kinds of them.

    No one likes the mosquito. But the mosquito may decide that she loves you. She? Yes,she. It's true that male mosquito doesn't bite(咬) and only the female mosquito bites because she needs blood to lay eggs. She is always looking for things or people she wants to bite. If she likes what she finds, she bites. But if she doesn't like your blood,she will turn to someone else for more delicious blood. Next time a mosquito bites you,just remember you are chosen. You're different from the others!

    If the mosquito likes you,she lands on your body without letting you know. She bites you so quickly and quietly that you may not feel anything different. After she bites,you will have an itch(痒) on your body because she puts something from her mouth together with your blood. By the time the itching begins,and she has flown away.

    And then what happens? Well,after her delicious dinner,the mosquito feels tired. She just wants to find a place to have a good rest. There,on a leaf or a wall, she begins to lay eggs,hundreds of eggs.

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背景材料: “新常态”是当下最流行的经济关键词。某班学生围绕“新常态”开展了探究活动,请你一起参与,共同探究以下问题。

材抖一:近几年我国经济发展情况

     年份

    2011 年

    2012年

     2013年

      2014年

             注

国内生产总值(GDP )

471564亿元

519470亿元

568845亿元

636463亿元

2014年突破10万亿美元,仅次于美国

经济增长速度%

9.5

7.7

7.7

7.4

2015年预期7%左右

单位GDP能耗下降%

2.01

3. 60

3.70

4.80

2015年预期3.1%以上

三大 产业 占比%

1、农业

10.1

10.1

10.0

9.2

发达国家的第三产业占地区GDP总量的比例达70%以上

2、工业

46.8

45.3

43.9

42.6

3、服务业

43.1

44.6

46.1

48.2

材料二:对于新常态下的经济发展,中央经济工作会议明确指出,“要以创新驱动引领新常态”,并着重强调与创新驱动有关的要求:“更加注重科技进步和全面创新、更加注重加强教育和提升人力资本素质。”

材料三:进入新常态,我国的制造业发展面临新挑战。2015年5月,国务院出台《中国制造2025》,提出了2025年制造业主要指标:

类别

指标

2015年

2020年

2025年

创新能力

研发经费内部支出占主营业务收入比重(%)

0.95

1.26

1.68

主营业务收入有效发明 专利数(件/每亿元)

0.44

0.70

1.10

质量效益

质量竞争力指数

83.5

84.5

85.5

绿色发展

工业增加值能耗下降幅度

比2015年 下降18%

比2015年 下降34%