水上漂浮房

    如图甲所示为科技人员设计的一种可移动式水上漂浮房，它具有冬暖夏凉的有点，不仅为人们到海滨旅游提供了方便，而且节约了能源、减少了对环境的污染。图中漂浮房的屋顶安装了太阳能电池板，接受太阳能的功率为9.0×10³W，电池板吸收的太阳能只用来提供推动漂浮房前进所需的能量，使漂浮房在平静的水面上能以恒定功率沿直线运动，运动过程中受到的阻力不变。现有一位中学生从岸上进入漂浮房参观体验，发现从某一时刻开始，漂浮房受到水平方向的牵引力F随时间运动t的变化关系如图乙所示，t=20s后，漂浮房以2.5m/s的速度做匀速直线运动。

电工师傅常用一只标有“220V 40W”的灯泡L₀（检验灯泡）取代保险丝来检查新安的照明电路中每个支路的情况，如图所示。当只闭合S、S₁时，L₀不亮；当只闭合S、S₂时，L₀和L₂都呈暗红色；当只闭合S、S₃时，L₀正常发光。由此可以判断      （   ）

    Self-confidence decides everything. When you are really confident, it attracts success to you like a magnet(磁铁). Self-confidence is the first step on the way1success. You should try your best to build your self-confidence.

    Be patient with yourself. Getting self-confidence2happen overnight(一夜之间). You might try something new and not meet your goal. If so, see what lessons you have got. Not meeting your goal is a3 to learn more about yourself. Self-confidence needs to be nurtured(培养), a bit at a time.

    Identify(认识)your abilities. Everyone is good at4 so discover the things in which you do well, and then focus on your abilities. Allow yourself to5them. Express yourself, whether it's through art, music, writing,6dance. Find something you enjoy and develop the ability to go with your interest.

    Stop comparing yourself with others. If you want to build your self-confidence, you have to focus on improving your own life for the better. You need to know that there is always someone who is prettier than you, just like there is always someone who 7attractive than you are. Caring about achieving your own goals and dreams is of great importance.

    Take care of yourself.8care of yourself, you should begin with small actions in life, like bathing regularly, brushing your teeth, and so on. Make time for yourself, even 9you are very busy. Either a ten-minute walk or a 50-mile-bike ride a good choice. Just start where you are now.

    Self-confidence can really10through many ways. If your life is not what you want it to be, try to become confident and live your life with confidence.

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Fitting in fitness

    Do you find excuses not to exercise? ____ Here are a few ways to get you going.

Do what you love.

    The easiest way to fall into the habit of doing exercise is to choose an activity you enjoy — one that doesn't feel like exercise, even though it is. ____ If you play to your strengths, you'll find fitness activities you can enjoy for years.

Choose your hour.

    Studies have shown that people who work out in the morning are most likely to stick with a routine. By doing exercise before the day starts, they can avoid the last-minute scheduling conflicts. But if you' re not a morning person, choose whatever time works best for you. ____

Call it by another name.

    ____ If it's something you have to do anyway — like washing the car or planting some bushes in the yard — you'll achieve two goals at once.

Partner up.

    Exercise is more fun when you do it with others. ____ On days when your motivation is low, you' re more likely to stick with the programme to avoid disappointing your exercise partners. You can also train with an expert. A personal trainer will help you set goals, design a personalized fitness programme, and vary your routine to keep it challenging.