By the year 2050, nearly 80% of the earth's population will live in cities. With the increase of human population, an estimated 109 hectares(公顷) of new land will be needed to grow enough food to feed them. If traditional farming practices continue as they are practiced today, there won't be enough land. Even if there were, traditional farming can also be harmful to land. Overused soil loses nutrients(营养). Farmers use chemicals to treat their crops. These chemicals get into the ground and run off into bodies of water. The polluted water supply does harm to the ecosystem(生态环境) and the health of those living things nearby.
Vertical(垂直的) farming systems can really help solve these problems. First, farms in urban areas will allow people to harvest fresh produce yearround. There is no need to worry about harm such as droughts or insects, which could destroy a crop. And indoor farms do less harm to the environment. They use less water than a traditional farm and 97 percent of fresh water is reused. Second, vertical farms use less energy because they don't depend on large farming equipment and long transportation systems to carry the food from farms to cities. And all of the crops in an indoor farm are grown without pesticides(农药), so they are fresh and healthy.
So, the next time you hear the word farm, don't just think of that large, open land with crops and animals. Think inside the city—it's the future of farming.
1题完成句子；2～3题简略回答问题；4题找出并写下第二段的主题句；5题将文中画线句子译成汉语。
1.If ____________ continue as they are practiced today, there won't be enough land.
2.What does the polluted water supply do harm to?
________________________________________________________________________
3.Why do vertical farms use less energy?
________________________________________________________________________
4.________________________________________________________________________
5.________________________________________________________________________
难忘的暑假
Young students from many nations travel to Canada each summer for the vacation. They will spend their days _____ and working like the cowboys of long ago at a working farm. It will make an unforgettable summer. They'll learn about cooperation and hard _____.
Soon after arriving in early July, the teenagers will learn how to ride a horse. After that, they'll learn how to cut wood, _____ a fire, and cook a noontime meal out in the open fields. They'll learn how to find their way using a compass, the sun, the moon and the stars _____ their guide. Building fences, cutting dry grass—the list of skills goes on and on. _____ the main skill these young international students will pick up is the skill of getting along with others.
They will rise each morning and come back before sunset, and work another _____ around the camp and the kitchen. When their long day of labour is complete, they'll finally _____ together for a meal. In the evening, around a big campfire, they'll discuss world events. Not long after the stars come out, they'll be _____ asleep in their beds. Russian, Chinese, English, Spanish—one of the first things they'll do is to _____ how to communicate with each other.
By the end of their stay at this farm, they'll know a lot about each other. They'll understand their ______ cultures. Many of the friendships made at this ranch(大农场) will last a lifetime. When the students return to their home countries, they'll have a better understanding of the way other people live.
1.A.reaching B.dancing C.living D.working
2.A.way B.study C.work D.attitude
3.A.put B.make C.produce D.cook
4.A.for B.with C.of D.as
5.A.But B.And C.Or D.Although
6.A.day B.week C.hour D.month
7.A.close down B.sit down C.walk down D.lie down
8.A.fast B.aloud C.early D.late
9.A.take B.show C.prove D.learn
10.A.exciting B.boring C.relaxing D.different
Don't ________ the waste paper. Everyone should be a greener person.
A.blow away B.put away C.throw away D.give away
As a citizen in Shijiazhuang, we should try our best to make our city meet the ________ of the civilized city.
A.safety B.secret C.standard D.support
Maria is not sure if she can ________ this difficult task. She decides to ask her brother for belp.
A.make B.overcome C.accept D.forget
Online reading has several ________. For example, it's possible for us to read at any time.
A.agreements B.projects C.purposes D.advantages
