在“探究凸透镜成像规律”的实验中，如图所示，小明将焦距为10cm的凸透镜固定在光具座上50cm刻度线处不动．调节烛焰、凸透镜和光屏的中心在同一高度，将蜡烛移至光具座上20cm处，移动光屏，在光屏上得到一个倒立、 ____的实像．要在光屏上成放大的像，蜡烛应向 ____移动，光屏应向 ____移动（均选填“左”或“右”）．

从直线外一点到这条直线所画的____线段最短，它的长度叫作点到直线的____．

完形填空。

    Mary is worried about her 16-year-old daughter，Sophia．One day，Sophia comes back from a party，upset and unhappy．From then on，she  1  nothing but how to lose weight and become beautiful．She refuses to eat and keeps on2exercise．Sophia has always been a little heavy，so Mary encourages her to go on a diet．She feels that her daughter would  3  more attractive(有吸引力的)if she lost 5 kilograms．However，Sophia has lost over 10 kilograms until now．Her eating and exercising habits are having a harmful effect(影响)on her  4．She is too thin and is often sick．

    Her mother is trying to prevent her from going on a diet and  5 weight，but Sophia thinks that she is still too heavy and refuses to start eating as  6．Sophia's mind is full of the idea of looking like a model. Every day she goes to a club to do exercise．Sometimes she 7 her time reading magazines like Fashion&Beauty．The models in these magazines are very thin and beautiful．Sophia says “If I look like these models. I will be happy and the boys will like me．”

    Mary feels sorry for having encouraged her at first，because Sophia 8 feels good or pleased with her body．She's afraid that Sophia will never be happy  9 she always compares herself with the models in the magazines．Mary tries to tell Sophia that true 10  comes from the heart．The most ordinary face becomes beautiful when the person is filled with confidence．

某校研究性学习小组到野外考察。下图为“考察区域地形图”，虚线所示为考察线路。下列描述可能与实地情况相符的是（　　）。

​

书面表达

假如你是校学生会主席，为了更好地保护环境，你代表学生会向全校学生发出倡议。请根据以下内容，写一份“低碳生活”倡议书：

1） “低碳生活”节能环保。(1)尽量步行上学或骑自行车上学。(2)离开房间前关掉灯和其它电器。(3)垃圾分类回收。(4）节约用纸。

2）.倡议全校学生过“低碳生活”,这是一种经济、健康、幸福的生活方式。

注意：1.词数：100左右  2.可以适当增加细节，以使行文连贯

3）. 开头和结尾已为你写好，不计人总词数。

参考词汇：电器electrical appliances

Dear friends，

    As we can see, the environment around us is getting worse and worse. It is important for us to live a low-carbon life to protect the environment, not only for ourselves but also for our future generations.

    ……

Thank you!

The students' Union