A
(2021·合肥模拟)
Most of Bangladesh is at or below sea level. Rising seawater linked to climate change has severely affected the country. High water from storms in coastal areas also adds salt to soil. The land is becoming salty. Crops are less productive and many areas of cropland in the country are becoming unfit for farming. These are big problems for the small country. More than 155 million people live in Bangladesh. Growing crops is the most common way Bangladeshis support themselves.
To find a way out, farmers in the country are learning to grow vegetables in so-called“vertical gardens”. The soil in these gardens is better because heavy rains have removed much of the salt.
A vertical garden is easy to make. Villagers fill containers with good soil and natural fertilizers. They put the containers on bricks so they are off the ground. They add pieces of the bricks to the soil to help water flow and drain(排水).
The farmers cut small holes into the sides of the containers. This permits vegetables with short roots a place to grow. Vegetables with long roots grow on top of the container. One bag of soil can produce up to eight kilograms of vegetables in one season.
The farmers also grow vegetables in containers made from large, thin pieces of plastic supported by bamboo. This“vertical tower” measures more than a meter wide. Each of these towers can produce more than 100 kilograms of vegetables. It costs about $12-$13 to build.
【文章大意】本文是一篇说明文。“农作物产量减少”是孟加拉国的一个大问题。为了找到出路, 这个国家的农民正在学习在所谓的“垂直花园”里种植蔬菜。
1. What is mentioned as a big problem for Bangladesh?
A. Severe climate conditions.
B. Too many people to support.
C. Lack of enough fresh water.
D. Reduced crop productivity.
【解析】选D。细节理解题。根据第一段中的“Crops are less productive and many areas of cropland in the country are becoming unfit for farming. These are big problems for the small country. ”可知, “农作物产量减少”是孟加拉国的一个大问题。
2. Which mainly makes vegetables growing in vertical gardens successful?
A. Places in the soil for roots.
B. Heavy rains kept in the soil.
C. The good soil with little salt.
D. Brick pieces added to the soil.
【解析】选C。细节理解题。根据第二段的第二句“The soil in these gardens is better because heavy rains have removed much of the salt. ”可知, 少盐的好土让垂直花园的蔬菜种植成功。
3. What does the underlined word“they” in Paragraph 3 refer to?
A. Bricks. B. Fertilizers.
C. Villagers. D. Containers.
【解析】选D。代词指代题。根据第三段可知, 垂直花园很容易建造。村民们用好土和天然肥料装满容器。他们把容器放在砖上, 这样它们就离地了。他们在土壤中加入砖块来帮助水流和排水。由此推断画线词they指代的是“容器”。
4. What can we infer about the vertical tower?
A. It is off the ground.
B. It drains very improperly.
C. It uses bamboo for containers.
D. It is unfit for growing vegetables.
【解析】选A。推理判断题。根据最后一段的前两句“The farmers also grow vegetables in containers made from large, thin pieces of plastic supported by bamboo. This ’vertical tower’ measures more than a meter wide. ”可知, 农民们也在由竹子支撑的大而薄的塑料片制成的容器里种植蔬菜。这个“vertical tower”有一米多宽。
