阅读理解：阅读下列短文，回答文后问题，选择最佳答案Trees mainly serve man in three important ways: They provide him with wood and other products; they provide him shade; and they help to prevent droughts and floods.Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important．In his eagerness to make money from trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And besides, he is usually too careless to plant and look after new trees. So the forests slowly disappear.This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees, their roots break up soil allowing the rain to sink in and also bind(固定) the soil, thus preventing it from being washed away easily；but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When the top-soil is gone, nothing remains but worthless desert.Two thousand years ago，a rich and powerful country cut down its trees to build warships, with which to gain itself an empire．It set up the empire, but, without its trees, its soil became poor and grew weak. When the empire fell to pieces, the home country found itself faced by floods and starvation(饥荒)．1. According to the passage, which is the most important service of trees to man?

【单选题】【消耗次数：1】

① A. They help him make money.

② B. They give him cool.

③ C. They give him wood and other things.

④ D. They help him to stop droughts and floods.

参考答案：

复制

纠错

相关题目

【单选题】 Trees mainly serve man in three important ways: They provide him with wood and other products; they provide him shade; and they help to prevent droughts and floods.Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important．In his eagerness to make money from trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And besides, he is usually too careless to plant and look after new trees. So the forests slowly disappear.This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees, their roots break up soil allowing the rain to sink in and also bind(固定) the soil, thus preventing it from being washed away easily；but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When the top-soil is gone, nothing remains but worthless desert.Two thousand years ago，a rich and powerful country cut down its trees to build warships, with which to gain itself an empire．It set up the empire, but, without its trees, its soil became poor and grew weak. When the empire fell to pieces, the home country found itself faced by floods and starvation(饥荒)．According to the passage, which is the most important service of trees to man?

① They help him make money.

② They give him cool.

③ They give him wood and other things.

④ They help him to stop droughts and floods.

查看完整题目与答案

【单选题】 Trees mainly serve man in three important ways: They provide him with wood and other products; they provide him shade; and they help to prevent droughts and floods.Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important．In his eagerness to make money from trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And besides, he is usually too careless to plant and look after new trees. So the forests slowly disappear.This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees, their roots break up soil allowing the rain to sink in and also bind(固定) the soil, thus preventing it from being washed away easily；but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When the top-soil is gone, nothing remains but worthless desert.Two thousand years ago，a rich and powerful country cut down its trees to build warships, with which to gain itself an empire．It set up the empire, but, without its trees, its soil became poor and grew weak. When the empire fell to pieces, the home country found itself faced by floods and starvation(饥荒)．Land becomes desert after all trees are cut down because __________.

① roots of trees break up the soil

② no tree keeps the rain and protects the top-soil

③ strong winds bring a lot of sand

④ there are too many rainfalls to make it

查看完整题目与答案

【单选题】 Trees mainly serve man in three important ways: They provide him with wood and other products; they provide him shade; and they help to prevent droughts and floods.Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important．In his eagerness to make money from trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And besides, he is usually too careless to plant and look after new trees. So the forests slowly disappear.This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees, their roots break up soil allowing the rain to sink in and also bind(固定) the soil, thus preventing it from being washed away easily；but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When the top-soil is gone, nothing remains but worthless desert.Two thousand years ago，a rich and powerful country cut down its trees to build warships, with which to gain itself an empire．It set up the empire, but, without its trees, its soil became poor and grew weak. When the empire fell to pieces, the home country found itself faced by floods and starvation(饥荒)．Why did the country mentioned in the passage suffer from floods and starvations?

① Because it set up an empire.

② Because it fell to pieces.

③ Because it turned its trees into warships.

④ Because it spent too much money on wars.

查看完整题目与答案

【单选题】 Trees mainly serve man in three important ways: They provide him with wood and other products; they provide him shade; and they help to prevent droughts and floods.Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important．In his eagerness to make money from trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And besides, he is usually too careless to plant and look after new trees. So the forests slowly disappear.This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees, their roots break up soil allowing the rain to sink in and also bind(固定) the soil, thus preventing it from being washed away easily；but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When the top-soil is gone, nothing remains but worthless desert.Two thousand years ago，a rich and powerful country cut down its trees to build warships, with which to gain itself an empire．It set up the empire, but, without its trees, its soil became poor and grew weak. When the empire fell to pieces, the home country found itself faced by floods and starvation(饥荒)．In many places forests slowly disappear because __________.

① many trees have been cut down by man

② new trees are not well looked after

③ man has not paid enough attention to planting trees

④ all the above

查看完整题目与答案

① Trees and Man

② The Function of Tree Wood

③ How do People do with Trees?

④ The Usage of Tree Roots

查看完整题目与答案

【单选题】阅读理解：阅读下列短文，回答文后问题，选择最佳答案Trees mainly serve man in three important ways: They provide him with wood and other products; they provide him shade; and they help to prevent droughts and floods.Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important．In his eagerness to make money from trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And besides, he is usually too careless to plant and look after new trees. So the forests slowly disappear.This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees, their roots break up soil allowing the rain to sink in and also bind(固定) the soil, thus preventing it from being washed away easily；but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When the top-soil is gone, nothing remains but worthless desert.Two thousand years ago，a rich and powerful country cut down its trees to build warships, with which to gain itself an empire．It set up the empire, but, without its trees, its soil became poor and grew weak. When the empire fell to pieces, the home country found itself faced by floods and starvation(饥荒)．3. Land becomes desert after all trees are cut down because __________.

① A. roots of trees break up the soil

② B. no tree keeps the rain and protects the top-soil

③ C. strong winds bring a lot of sand

④ D. there are too many rainfalls to make it

查看完整题目与答案

【单选题】阅读理解：阅读下列短文，回答文后问题，选择最佳答案Trees mainly serve man in three important ways: They provide him with wood and other products; they provide him shade; and they help to prevent droughts and floods.Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important．In his eagerness to make money from trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And besides, he is usually too careless to plant and look after new trees. So the forests slowly disappear.This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees, their roots break up soil allowing the rain to sink in and also bind(固定) the soil, thus preventing it from being washed away easily；but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When the top-soil is gone, nothing remains but worthless desert.Two thousand years ago，a rich and powerful country cut down its trees to build warships, with which to gain itself an empire．It set up the empire, but, without its trees, its soil became poor and grew weak. When the empire fell to pieces, the home country found itself faced by floods and starvation(饥荒)．2. In many places forests slowly disappear because __________.

① A. many trees have been cut down by man

② B. new trees are not well looked after

③ C. man has not paid enough attention to planting trees

④ D. all the above

查看完整题目与答案

【单选题】阅读理解：阅读下列短文，回答文后问题，选择最佳答案Trees mainly serve man in three important ways: They provide him with wood and other products; they provide him shade; and they help to prevent droughts and floods.Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important．In his eagerness to make money from trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And besides, he is usually too careless to plant and look after new trees. So the forests slowly disappear.This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees, their roots break up soil allowing the rain to sink in and also bind(固定) the soil, thus preventing it from being washed away easily；but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When the top-soil is gone, nothing remains but worthless desert.Two thousand years ago，a rich and powerful country cut down its trees to build warships, with which to gain itself an empire．It set up the empire, but, without its trees, its soil became poor and grew weak. When the empire fell to pieces, the home country found itself faced by floods and starvation(饥荒)．4. Why did the country mentioned in the passage suffer from floods and starvations?

① A. Because it set up an empire.

② B. Because it fell to pieces.

③ C. Because it turned its trees into warships.

④ D. Because it spent too much money on wars.

查看完整题目与答案

① A. Trees and Man

② B. The Function of Tree Wood

③ C. How do People do with Trees?

④ D. The Usage of Tree Roots

查看完整题目与答案

【单选题】 He lives in a village _____there are a lot of trees.

① there

② where

③ that

④ which

查看完整题目与答案

随机题目

【多选题】在工业普查中( )。

① 工业企业总数是统计总体

② 每一个工业企业是总体单位

③ 固定资产总额是统计指标

④ 机器台数是连续变量

⑤ 职工人数是离散变量

查看完整题目与答案

【单选题】全面调查与非全面调查的划分是以( )。

① 时间是否连续来划分的

② 最后取得的资料是否全面来划分的

③ 调查对象所包括的单位是否完全来划分的

④ 调查组织规模的大小来划分

查看完整题目与答案

【单选题】下列分组中哪个是按品质标志分组( )。

① 企业按年生产能力分组

② 产品按品种分组

③ 家庭按年收入水平分组

④ 人口按年龄分组

查看完整题目与答案

【单选题】抽样调查与重点调查的主要区别是( )。

① 作用不同

② 组织方式不同

③ 灵活程度不同

④ 选取调查单位的方法不同

查看完整题目与答案

【单选题】下列调查属于不连续调查的是( )。

① 每月统计商品库存额

② 每旬统计产品产量

③ 每月统计商品销售额

④ 每季统计进出口贸易额

查看完整题目与答案

【单选题】设某地区有670家工业企业，要研究这些企业的产品生产情况，总体单位是( )。

① 每个工业企业

② 670家工业企业

③ 每一件产品

④ 全部工业产品

查看完整题目与答案

【多选题】下列哪些旅游点属于湘鄂渝黔桂边境山地生态文化区

① 张家界

② 黄果树

③ 梵净山

④ 三峡

查看完整题目与答案

【多选题】山水艺术因艺术家在艺术传达和意境的创造方面有许多相同的审美特征有

① 情景交融

② 虚实相生

③ 对意境韵味的追求

④ 强调人与自然的和谐统一

查看完整题目与答案

【单选题】山水画属于山水文化的

① 物资形态

② 文化形态

③ 精神形态

④ 不属于

查看完整题目与答案

【单选题】雄伟使人感到美的最主要原因是：

① 比较少见

② 使人惊撼崇敬

③ 奇特

④ 自我认可

查看完整题目与答案