牛津英语译林版八年级上册期末复习专项练习 - 任务型阅读 B 卷(含答案)

牛津英语译林版八年级上册期末复习专项练习–任务型阅读B 卷

A

Having nice friendships is one of the happiest things in life, but sometimes you might find yourself without any close friends. Here is some advice that might help you get through the hard times.

Loneliness (孤独) is something that everyone can feel. Feeling lonely doesn’t mean you’re a strange person. Having fun by yourself is totally possible. You can spend time doing activities you enjoy. That can be a good way to pass the time and help you get to know yourself better. Putting your energy into your dream is also a good way. For example, if you always dream of travelling to somewhere, make a plan for it.

To be positive (乐观的) is important. If you find yourself thinking "no one likes me", then remember you’re alwa ys the best to your parents. Having healthy living habits can also help. Spend at least three times a week doing exercise or something that makes your body fee comfortable. And try giving a big smile to the people you pass by on the street. Maybe you’ll ge t a few back.

The last one is to make new friends. Going to the parties or activities that you are interested in. Although you might be shy, just believe in yourself and talk with people. You can also find friends on the Internet who share your thoughts and like the same things as you. They may not as close as those in real life, but it’s still a good way to feel connected (有联系的) . Just be

B

It happens every spring. We can find flowers here and there over night. Do they call each other? Of course not, but how do plants "know" when to flower?

It's a question for the biologist for years. But a new study may have found the answer— the secret lies in a protein (蛋白质) called FKF1. This allows plants to sense the differences in day lengths (时长) so that they can tell the seasons are changing.

Biologists found FKF1 protein when they were studying a plant called Arabidopsis. They found that the FKF1 protein can be activated (激活) by sunlight.

Plants make the protein every day in the late afternoon all year round. If there is no light at this time, for example, in winter when the sun goes down early. the protein won't be active. But when spring comes and days get longer, the FKF1 protein can be activated by sunlight and the plant knows it's time to flower. The daylight-sensing system also keeps plants from flowering when conditions (条件) are poor for growing, such as during autumn or winter when the weather is cold and days are short.

Biologists only studied how the FKF1 protein works in the Arabidopsis, but they believe that the process is same in many other plants, like rice and wheat. These could be useful to the farmers. If we can control (控制) the timing of flowering, we will have more crops in the field or more flowers in the garden. Also, we will have more biofuel (生物燃料) plants. This would be