搜题
网友您好,请在下方输入框内输入要搜索的题目:
搜题
题目内容 (请给出正确答案)
提问人:网友weichaoyang 发布时间:2022-01-07
[主观题]

Dependent on limited soil moisture and rainfall, __________ can adapt to drought and cope

with the challenges of their habitats for their ability to storage water in the tissues and prevent it from vaporing from open pores.

A、hydrophytes

B、xerophytes

C、respiration

D、transpiration

简答题官方参考答案 (由简答题聘请的专业题库老师提供的解答)
查看官方参考答案
更多“Dependent on limited soil moisture and rainfall, __________ can adapt to drought and cope”相关的问题
第1题
Thelack of rainfall causes soils to dry out, making them lighter and more to wind erosion.
A.tenet

B.arbitrary

C.vulnerable

D.literary

点击查看答案
第2题
After the festival, the temperature drops and rainfall increases, making it a good time for spring ploughing and sowing.
点击查看答案
第3题

Threes are useful to man in three very important ways: they provide him wood and other products; they give him shade; and they help to prevent drought (干旱) and floods. Unfortunately, in many parts of the world, man bas not realized that the third of these services is the most important. In his eagerness to draw quick profit from the trees, he has cut them down in large numbers. Two thousand years ago, a rich and powerful country cut down its trees to build warships, with which to gain itself an empire. It gained the empire but, without its trees, its soil became bare and poor. When the empire fell to pieced, the country found itself faced by floods and starvation. Even where a government realizes the importance of a plentiful supply of trees, it is difficult sometimes to make the people realize this. They cut down the trees but are too careless to plant and look after new trees. So, unless the government has a good system of control, or can educate the people, the forests slowly disappear. This does not only mean that there will be fewer trees. The results are even more serious: for where there are trees, their roots break the soil up, allowing the rain to sink in, and also bind the soil. This prevents the soil from being washed away. But where there are no trees, the rain falls on hard ground and flows away on the surface, and this causes floods and the rain carries away the rich topsoil in which crops grow. When all the topsoil is gone, nothing remains but worthless desert. Trees are useful to man mainly in three ways, the most important of which is that they can __________ . A. Keep him from the hot sunshine

B. enable him to build warships

C. make him draw quick profit from them

D. protect him from droughts and floods

It’s a great pity that __________ .A.man is only interested in building empires

B.man is eager to profit from trees

C.man hasn’t realized the importance of trees to him

D.man hasn’t found out that he has lost all trees

Sooner or later the forests will disappear __________ .A.unless a country has a plenty supply of trees

B.unless people stop cutting down their trees

C.unless all people are taught the importance of planting trees

D.unless the government punishes those who cut trees instead of planting them

When there is a heavy rain, trees can help to prevent floods, as they can __________ .A.keep rain from falling down to soft ground

B.cause the soil to allow rainwater to sink in

C.prevent the soil from being washed away

D.make the topsoil stick together

The word “bind” in Paragraph 5 means “__________”.A.to wash away

B.to make wet

C.to make stay together

D.to improve

点击查看答案
第4题
阅读理解。???Trees are useful to man in three impor...
阅读理解。
Trees are useful to man in three important ways: they give him wood and other useful things, they give him

cool places, and they help to stop drought and flood.

Unluckily, in many parts of the world, man has not found that the third of these points is the most important.

Man wants to make money from trees,so he has cut them down in large numbers, only to find that without

them he has lost the best friends he had. And also, 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 worse: for where there are

trees, their roots break up soil-make the rain in-and also bind the soil, thus stopping 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 all the top-soil is gone, nothing is left but useless desert.

1. The most important points of trees to man is _____.

[    ]

A. they help him to make money

B. they give him cool

C. they give him wood and other things

D. they help him to stop drought and floods

2. In many places forests slowly disappear because _____.

[    ]

A. many trees have been cut down by man

B. new trees are not well looked after

C. man has not paid enough attention to planting trees

D. all the above

3. Land becomes desert after all trees are cut down because _____.

[    ]

A. roots of trees break up the soil

B. there are too many rainfalls

C. strong winds bring a lot of sand

D. there are no longer trees to keep the rain and protect the top-soil.

4. Which title best fits the passage?

[    ]

A. Trees and Man B.The Function of Tree Wood

C. How do People deal with Trees?

D. The Usage of Tree Roots

点击查看答案
第5题
The inside surface is resistant to water, so the coat can be____when it rains.

[    ]

A. deserved

B. reversed

C. reserved

D. preserved

点击查看答案
第6题
It includes land with enough soil and enough rainfall or water, and enough heat, which, at present, we are not using. A. adj. →v. B. v. →n. C. v. →adv.

A、adj. →v.

B、v. →n.

C、v. →adv.

D、prep. →adv.

点击查看答案
第7题
What makes it rain? Rain falls from clouds for the same reason anything falls to Earth. The Earth's Gravity(重力) pulls it. But every cloud is made of water droplets or ice crystals. Why doesn't rain or snow fall constantly from all clouds? The droplets or ice crystals in clouds are exceedingly small. The effect of gravity on them is minute. Air currents move and lift droplets so that the net downward displacement is zero, even though the droplets are in constant motion.

Droplets and ice crystals behave somewhat like dust in the air made visible in a shaft(束) of sunlight. To the casual observer, dust seems to act in a totally random fashion, moving about wildly without fixed direction. But in fact dust particles are much larger than water droplets and they finally fall. The cloud droplet of average size is only 1/2,500 inch in diameter. (78)It is so small that it would take sixteen hours to fall half a mile in perfectly still air, and it does not fall out of moving air at all. Only when the droplet grows to a diameter of 1/125 inch or larger can it fall form. the cloud. The average raindrop contains a million times as much water as a tiny cloud droplet. The growth of a cloud droplet to a size large enough to fall out is the cause of rain.

What is the main topic of the passage?

A.The mechanics of rain.

B.The climate of North America.

C.How gravity affects air current.

D.Types of clouds.

点击查看答案
第8题
__________ is the study of the chemicals derived from plants by modern and scientific theories and methods.

A、Hydrophyte

B、Phytochemistry

C、Xerophyte

D、Respiration

点击查看答案
第9题
Check for a pulse and for breathing if you know first aid; begin artificial __________ and CPR (心肺复苏术) if necessary.

A、photosynthesis

B、phytochemistry

C、respiration

D、transpiration

点击查看答案
重要提示: 请勿将账号共享给其他人使用,违者账号将被封禁!
查看《购买须知》>>>
重置密码
账号:
旧密码:
新密码:
确认密码:
确认修改
购买搜题卡查看答案
购买前请仔细阅读《购买须知》
请选择支付方式
微信支付
支付宝支付
点击支付即表示你同意并接受《服务协议》《购买须知》
立即支付
搜题卡使用说明

1. 搜题次数扣减规则:

功能 扣减规则
基础费
(查看答案)
加收费
(AI功能)
文字搜题、查看答案 1/每题 0/每次
语音搜题、查看答案 1/每题 2/每次
单题拍照识别、查看答案 1/每题 2/每次
整页拍照识别、查看答案 1/每题 5/每次

备注:网站、APP、小程序均支持文字搜题、查看答案;语音搜题、单题拍照识别、整页拍照识别仅APP、小程序支持。

2. 使用语音搜索、拍照搜索等AI功能需安装APP(或打开微信小程序)。

3. 搜题卡过期将作废,不支持退款,请在有效期内使用完毕。

请使用微信扫码支付(元)

订单号:

遇到问题请联系在线客服

请不要关闭本页面,支付完成后请点击【支付完成】按钮
遇到问题请联系在线客服
恭喜您,购买搜题卡成功 系统为您生成的账号密码如下:
重要提示:请勿将账号共享给其他人使用,违者账号将被封禁。
发送账号到微信 保存账号查看答案
怕账号密码记不住?建议关注微信公众号绑定微信,开通微信扫码登录功能
警告:系统检测到您的账号存在安全风险

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!

- 微信扫码关注简答题 -
警告:系统检测到您的账号存在安全风险
抱歉,您的账号因涉嫌违反简答题购买须知被冻结。您可在“简答题”微信公众号中的“官网服务”-“账号解封申请”申请解封,或联系客服
- 微信扫码关注简答题 -
请用微信扫码测试
欢迎分享答案

为鼓励登录用户提交答案,简答题每个月将会抽取一批参与作答的用户给予奖励,具体奖励活动请关注官方微信公众号:简答题

简答题官方微信公众号

简答题
下载APP
关注公众号
TOP