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When it is difficult to find space to build more houses and offices, we auto
When it is difficult to find space to build more houses and offices, we auto
游客
2023-10-19
49
管理
问题
When it is difficult to find space to build more houses and offices, we
automatically build upwards—we build skyscrapers. Now, some farmers
are farming upwards too.
Vertical farms save space by growing plants inside buildings on special 【M1】______
designed racks. Each rack can hold many plants and this increases
the amount 【M2】______
of food produced. Hydroponics is a system where special water is giving to 【M3】______
the plants, water which contains everything the plant needs to grow. In
traditional farming, plants grow in the ground, and in vertical farms plants 【M4】______
grow in pots and are only fed by special water. Some farmers have racks 【M5】______
attached to elevators. Because the elevators are always moving, so the
plants are 【M6】______
always moving too. By this way the plants receive more sunlight and grow
better. 【M7】______
Vertical farming works well because farmers have full control for the 【M8】______
growing conditions. They control temperature, food and water, so vertical
farmers can grow plants all year round and almost anywhere in the world.
Furthermore, vegetables grown in the city do not have to transported as 【M9】______
far to reach the shops. This means the food is delivered fresher and with
less transport, so there is more pollution. 【M10】______ [br] 【M4】
选项
答案
and—but
解析
原文叙述,“在传统农业中,植物生长在地下,而在垂直农场中,植物生长在盆栽中,只能用特殊的水培养”。原句前后讲到,传统农业与垂直农场的植物生长环境不同形成对比,故要用but连接。因此,将and改为but。
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