题目内容
（请给出正确答案）
Trees become unhealthy if the gardener？？______.
A．to helps a wound to dry
B．to covers a rough surface
C．damages some of the small side branches
D．allows too many branches to grow in the middle
安装简答题APP，拍照搜题省时又省心！
更多“Trees become unhealthy if the …”相关的问题
Trees become unhealthy if the gardener______.
A．allows too many branches to grow in the middle
B．doesn't protect them from the wind
C．forces them to grow quickly
D．damages some of the small branches
A.Because nothing remains on land except floods.
B.Because there are no longer trees to keep the rain and protect the top-soil.
C.Because too much rain sinks in and washes away the top-soil.
D.Because roots of the trees break up the soil.
In the last two paragraphs the writer wanted to make it clear that ______.
A．where there are no trees, the soil becomes hard and poor
B．where there are many trees, there are fewer floods
C．where there are no trees, the land might become desert slowly
D．floods will make the land become desert
Why does land become desert after all trees are cut down？
A．Because nothing remains on land except floods.
B．Because there are no longer trees to keep the rain and protect the top-soil.
C．Because too much rain sinks in and washes away the top-soil.
D．Because roots of the trees break up the soil.
What is the final result if trees are cut down ruthlessly？
A．The roots of trees will break up the soil and bind the soil together.
B．The rainwater falls on the ground will wash away the soil.
C．The rainwater will lead to floods and carry away the rich top-soil.
D．The whole farmland will become a large area of poor, sand-covered land.
A．too many branches grow in the middle
B．branches in the middle are cut away
C．small side branches become thick
D．overgrown branches are removed
Why does land become desert after all trees are cut down？
A.Because nothing remains on land except floods.
B.Because there are no longer trees to keep the rain and protect the top-soil.
C.Because too much rain sinks in and washes away the top-soil.
D.Because roots of the trees break up the soil.
听力原文： Forests are of great importance to our environment because they can absorb carbon dioxide and produce oxygen. They may also provide shelter and food for many different types of plants and animals. Trees are cut down for many reasons but the main reasons are to make space to build new houses and to clear land to grow grass for cows and sheep to eat, to produce dairy foods. The trees being cut down are sold and are made into paper and furniture.
Cutting down trees may have serious effects to the environment. (33)If animals' homes, which are built in and around the trees, are destroyed, many species in the world will become extinct. For example, many different types of animals in South America had disappeared before scientists could learn about them. Cutting down trees also affects the climate. When rain falls on a forest, new clouds will be created. If huge areas of trees are cut down, clouds can not form, rain does not fall and the land becomes drier and drier and finally becomes deserts. (34)And what's more, the carbon dioxide builds up and adds to the global warming which is making the earth become hotter and hotter.
(35)In recent years, to protect the forests, many European countries are planting trees faster than they are cutting them down. Many trees were planted a few years ago to replace woodland and to create forests in areas where there wasn't much wood. We can also help to save forests by reusing and recycling paper.
(34)
A．The loss of natural habitat for many species.
B．Less space for building new homes.
C．Less carbon dioxide and oxygen.
D．Reduced supply of paper and wood.
If there were no trees, heavy rains would wash away the rich top soil that is so important to plants. The result is that the land will become a desert. There are plenty of desert areas in the world. A long time ago these desert areas used to be very rich areas, but man in the past had not enough knowledge about science of nature, they cut down too many trees in the area where they lived and never planted new ones. By and by the rich top soil was blown and washed away by strong winds and heavy rains. In the end the rich land changed into useless deserts where nothing could grow.
According to the passage, ______.
A．a long time ago, man did not know how to make use of wood
B．trees are not as useful as they were in the past
C．trees were more found in the past than they are today
D．people have 'always found trees useful
为了保护您的账号安全，请在“简答题”公众号进行验证，点击“官网服务”-“账号验证”后输入验证码“”完成验证，验证成功后方可继续查看答案！
微信搜一搜
简答题
微信搜一搜
简答题
如搜索结果不匹配，请 
