The FLSA (Fair Labor Standards Act) sets rules about the days, hours that 14, 15, 16 and 17-year-old employees (雇员) can work.

Climate(气候)change will not only increase the world’s average(平均)temperature, and it will also increase the heatwaves(热浪)that are harming people and wildlife even now. Summertime is quickly becoming a dangerous season for all life on the earth.

Heatwaves have already produced attractive deaths in animals. Heatstroke (中暑)from such e-vents is also a present danger for people, especially the old.

Heatwaves can also have more effects on the bodies of animals. If wild animals are experiencing terribly high temperatures, although you won’t see death, you might see changes in their bodies that show they’re getting close to death. By studying responses like these, scientists could get a nearly warning sign before heatwaves start to produce more serious results. Some research deals with these kinds of responses to make predictions about how climate change will have an influence on humans, animals and ecosystems. As for when this kind of events will happen and just how terrible they’ll be, predictions are different. We can’t say it’s going to happen next year. But if we continue giving off CO₂ like this, by the end of this century, we’re going to see heatwaves that will be more powerful than those that have killed large numbers of people and wildlife.

As carbon dioxide(CO₂) and other greenhouse gases(气体)keep in heat and raise the earth’s average temperature, the heatwaves will come more often.

Climate change is having a great influence on the earth. Scientists are now calling for action to deal with the bad influence of heatwaves on the planet.

Someone’s birthday is a wonderful time. Everyone wants to get good wishes on their birthday.     46     Here are some ideas for you.

Buy or make a card for their birthday. Search for a card that reminds you of the birthday person, or design a card either by hand or on the computer.     47    

Send a thoughtful email or text message (短信). Don’t just write “Happy birthday”. You can write more words to make your email or text message special.     48     In this way, you can show your true feeling for your friends.

    49     Whether it’s a cake, cookies or chocolate, make their favorite desserts. You can either deliver (送) them in person on the day of your friend’s birthday, or mail them overnight for a special treat if you live far away.

Buy or make a thoughtful gift. Pay attention to things they are interested in. Gifts don’t have to be expensive.     50     Think about their personalities (个性) and interests, and try to buy a gift they may love.

My school life was one of the     61     experiences I have. I had many friends who were always there for me. It was really a wonderful time. And it did have special     62     to me.

While     63     in high school, I had a wonderful time     64     my friends and friendly teachers. But that didn’t mean that everything was good. When I entered high school, I cried a lot. At first, I hardly knew anyone. I was considered an outsider(外人)for a few weeks. Sometimes I was humiliated(羞辱)by other students. And when I     65     to give up going to that school, I got the support from a person who was very nice to me.     66     I started to get closer to him and then many students started to play with me. And now I have so many friends who are irreplaceable(不可替代的)to me. And we are still in touch.

In short, my high school life was full of spice(刺激)and fun. I had many ups and downs, but if you ask me to describe it in     67     sentence, then it will be “It was an experience which taught me many lessons that will be     68     all my life.”

It’s hard to predict what computers in the future will be like. However they will be different from what they are now for sure.

Firstly, computers in the future can be changed in size, color and shape easily. These changes can make them suitable for many different situations. Secondly, they can be in control of themselves whenever there is light instead of being controlled by electricity, which is environmentally friendly. Finally, computers in the future will be more intelligent（智能的）and they can communicate with humans like friends. What will make people more excited is that they can sense human feelings and react accordingly (根据情况回应). You can’t wait to own such a wonderful computer, can you?

On Jan. 22, 2021, China started a new high-speed railway route(路线) service that connects Beijing with Harbin, the capital of the northeastern province of Heilongjiang. The route is an important part of China’s high-speed railway network(网络), which completes the high-speed rail-way link(连接) between the southern and northern parts of the country.

With a designed speed of 350 km per hour, the service is expected to shorten the travel time from Beijing to Harbin to about five hours, around ninety minutes less than the previous(先前的)fastest railway route. In general, Beijing sends about 6 high speed trains (2 G trains and 4 D trains) to Harbin from 06:34 am to 15:15 pm every day. Specifically, D29 is the first train, G381 is the first high speed train with the shortest travel time, and D27 is the last high speed train which arrives at 23:00 pm at night.

Therefore, forget the dull(枯燥的)moments above those clouds in the plane, and just prepare to see what it looks like on the way in the four provinces including Hebei, Liaoning, Jilin and Heilongjiang.