Remaining Active

Our body is an amazing object. 26________ If you are inactive most of the time, your body will quickly become tired when it should be active. But if you are very active, your body will get used to the hard work, and the work will become easier for you to do.

Physical activity can help people remain active and stay healthy.27 ________ It also helps people sleep better. This is why active students don't complain about being tired. They have a good night's sleep and have the energy to study hard and have fun every day.

Physical activity also makes people look and feel good. Activity burns more calories（卡路里） than just sitting. 38________ In addition, regular exercise can make your muscles and bones stronger. There are many factors to look at when you select a new physical activity. The most important is to choose something you enjoy. If you like jumping rope, that is the activity you should do. 29________ In fact, two days of basketball, three days of swimming, and two days of bicycling can be more fun than jogging every day.

30 ________ Some skills will improve with practice while others may always be difficult for you. If you enjoy an activity, feel free to do it. No one cares whether you can do it well or not, and you don't need to care about it either. Whatever activity you choose, remain active. It can make you physically fit and healthy for life.

How to Make Your House More Energy-efficient

Using less energy around the home is easier than you might think, saving your money while creating a healthier, more comfortable living space for you and your family. Changing a few old habits can make an impact on your energy bill, your comfort and the environment. Here are some handy tips to make your house more energy-efficient.

1 If your home has adjustable central heating, lowering the room temperature even slightly can make a difference. You may not feel it, but your wallet will. It is even more advisable to control temperatures at different times of the day.

2 If the weather allows it, head outside and dry your laundry on a clothesline. The sunlight will help eliminate bacteria and dust. While clothes dryers get the job done faster, they also use up energy. By hanging your clothes out you’ll be cutting greenhouse gases by about three kilograms per load.

3 Installing large windows on the northern side of your house can help you make use of sunlight’s natural warmth. To stay cool indoors on hot summer days, install blinds（百葉窗）to block the heavy sun. Put your desk near the window, then you don’t need a lamp in the daytime.

4 Be sure your hot-water pipes are properly wrapped. In an average home heating water accounts for more than one-quarter of the energy bill. Why let warmth go to waste before it reaches you?

5 When the time comes to replace appliances, select those that are both energy-efficient and of the appropriate size for your needs. Don’t buy bigger ones just because you can.

Life is Difficult

What makes life difficult is that the process of facing and solving problems is a painful one. Problems cause 31________ , anger, fear or despair. These are 32________feelings, often as painful as any kind of physical pain. And since life 33________an endless series of problems, it is 34________difficult and is full of pain as well as joy.

Yet it is in this process of 35________and solving problem that life has its meaning. Problems call forth our 36________and our wisdom. It is only because of problems that we grow 37________ and spiritually. When we want to encourage the 38________ of the human spirit, we encourage the human capacity to solve problems, just as in school we deliberately 39________ problems for our children to solve. It is through the pain of confronting and resolving that we learn. It is for this reason that 40________people learn not to fear but actually to welcome problems and actually to welcome the pain of problems.