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shudisz 发布时间：2022-01-06

[主观题]

听力原文：The water level of oceans rises and falls alternatively twice a day. This movemen

听力原文： The water level of oceans rises and falls alternatively twice a day. This movement of water is called the tide. Tides are caused by the pull of the sun and the moon on the earth's surface; since the moon is much closer, it affects the tides more than the sun. When the moon is directly overhead, it actually pulls on the water that is below it. This causes the water level to rise because the water is pulled away from the earth. As the moon disappears over the horizon, the pull lessens and the water level settles back towards the ocean bottom.

When the water reaches its highest level, we have high tide. And when the water reaches its lowest level, we have low tide. From its lowest point, the water rises gradually for about six hours until it reaches high tide. Then it begins to fall continuously for about six hours until it reaches low tide. Then the cycle begins again.

(23)

A．Every other day.

B．Twice a week.

C．Twice a day.

D．Only during the summer.

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“听力原文：The water level of oceans rises and falls alternatively twice a day. This movemen”相关的问题

第1题

听力原文：The average life of a hurricane is only about nine days, but it contains almost m

听力原文： The average life of a hurricane is only about nine days, but it contains almost more power than we imagine. The energy in the heat released by a hurricane's rainfall in a single day would satisfy the entire electrical needs of the United States for more than six months. Water, not wind, is the main source of death and destruction in a hurricane. A typical hurricane brings 6- 12-inch downpours resulting in sudden floods. Worst of all is the powerful movement of the sea—the mountains of water moving toward the low-pressure hurricane center. The water level rises as much as 15 feet above normal as it moves toward shore.

(26)

A．6.

B．9.

C．12

D．15

点击查看答案

第2题

听力原文：The ordinary raindrop is a mighty earthmover with sufficient strength to cut rock

听力原文： The ordinary raindrop is a mighty earthmover with sufficient strength to cut rock. When rainwater collects on the surface of the ground, some of it evaporates and some of it sinks into the earth. The remainder begins to flow downhill, commencing its lengthy journey from brook to stream to lake, or to a river that will carry it to the sea.

As water flows along the ground, it picks up sand, pebbles, even boulders. It uses them to gnaw at the sides and bottoms of its channel, gradually loosening more earth.

By this process enormous amounts of mud and rock are moved from the land to the sea. Each year the Mississippi River carries 730 million tons of solid matter into the Gulf of Mexico.

This constant hauling of land into the sea is lowering the United States' average height above sea level at a rate of about one foot every 9,000 years. If erosion continues at the same rate, the United States will be worn completely down to sea level in about 23 million years.

What does erosion by water result in？

(30)

A．Wearing down the soil.

B．Building up land.

C．Enriching the soil.

D．Loosening more earth.

点击查看答案

第3题

听力原文：The average life of a hurricane is only about nine days, but it contains almost m

ore power than we can imagine. The energy in the heat released by a hurricane's rainfall in a single day would satisfy the entire electrical needs of the United States for more than six months. Water, not wind, is the main source of death and destruction in a hurricane. A typical hurricane brings 6-to 12-inch downpour resulting in sudden floods. Worst of all is the powerful movement of the sea -- the mountains of water moving toward the low-pressure hurricane center. The water level rises as much as 15 feet above normal as it moves toward shore.

What is the main source of death and destruction in a hurricane？

A．The heat.

B．The wind

C．The water.

D．The mountains.

点击查看答案

第4题

听力原文： Rescue workers ill France say an effort tu retrieve eight Swiss explorers trappe

d in a flooded cave will resume Saturday, after being delayed by high water levels.

The rescue team says it is using pumps to lower the water level in cave. Divers found the explorers on Friday on a ledge more than 75 meters from the entrance to the cavern. Officials describe them as well, but tired.

More than 150 French and Swiss rescuers had worked since late Wednesday to find the missing tourists, who disappeared after a flash rainstorm caused water to rise in the cave they were exploring near the town of Goubois.

The eight have been identified as seven students and their guide, all from a school near Zurich.

When will the rescue resume？

A．On Saturday.

B．On Friday.

C．On Thursday.

D．On Wednesday.

点击查看答案

第5题

听力原文：TUVALU, a tiny country in the Pacific Ocean, has asked for help as it fears it wi

听力原文： TUVALU, a tiny country in the Pacific Ocean, has asked for help as it fears it will be swallowed up by the sea. Storms and huge waves are a constant threat and none of Tuvalu's nine little islands is more than five meters above sea level. Salt water is already entering the country's drinking water supply, as well as damaging plants that produce fruit and vegetable. Without urgent help, the country's days are numbered. But Tuvalu is not the first place to face sinking into the sea. Venice, a historic city in Italy, best known for its canals, has sunk about 24 cm over the past 100 years.

Experts say that it will have sunk another 20-50 cm by 2050. A century ago, St. Mark's Square, the lowest point in the city, flooded about nine times a year. Nowadays, it happens more than 100 times. While Venice is slowly sinking into the mud on which it stands. Tuvalu's rising sea level is caused by global warming. The average global temperatures also make water expand, so it takes up more space, causing the sea level to rise. The sea level has risen about 10-25 cm in the last 100 years. The main cause of global warming is human pollution. Through burning coal, oil and gas, people have been increasing the greenhouse gases in the atmosphere, such as CO2. This adds to the power of the greenhouse effect, making the planet even warmer.

(30)

A．It is in the Atlantic Ocean.

B．It has almost been swallowed by the sea.

C．It consists of 9 islands.

D．It is famous for its canal.

点击查看答案

第6题

听力原文：Today, most countries in the world have canals. Goods can be moved cheaply by boa

t than any other means of transport. Some canals, such as the Suez or the Panama, save ships weeks of time by making their voyage a thousand miles shorter. Other canals permit boats to reach cities that are located on the coast. Still other canals help to irrigate fields where there is not enough water, and drain lands where there is too much water.

In places where it does not rain very often, irrigation canals carry water from rivers or lakes, such as the lake behind .the Aswan Dam on the Nile River, and provide the irrigation water.

In places where there is too much water, canals can drain the water off the land for use in farming. In Holland, acres and acres of land have been drained in this way. Since much of this drained land is below sea level, the water in the canals has to be pumped up to sea level. Dikes have been built in Holland to keep the sea from coveting the land.

Which of following is the best title of the text？

A．How Aswan Dam was buik.

B．Transporting with canal boats.

C．Canals and their uses.

点击查看答案

第7题

SECTION BPASSAGESDirections: In this section, you will hear several passages. Listen to th

SECTION B PASSAGES

Directions: In this section, you will hear several passages. Listen to the passages carefully and then answer the questions that follow.

听力原文： Canals are watercourses constructed to improve and extend natural waterways. They are generally built to facilitate transportation, but from the beginning they have been used for many additional purposes including draining swamps, irrigating land for cultivation, and promoting economic development.

Canals are often classified by the size of vessel they can accommodate. Some small local canals, which are able to float only 100 to 300 ton boats or small rafts of timber, may be only 3 feet deep. Major barge canals generally range from 6 to 9 feet in depth, and some are as much as 10 or 12 feet deep. These canals can carry 1,350 to 2,000 ton craft. Ship canals are 25 feet or more deep and are capable of accommodating large vessels in the seagoing class.

Canals may also be classified as either water level or lock canals. Water level canals do not vary in height along their courses. The best known of these is the Suez Canal, which is at sea level. Lock canals, which include most modern waterways, contain locks, or special devices for raising and lowering boats along their courses by changing the depth of the water. Each lock is a stretch of water enclosed by gates at each end. After a boat enters the lock, water is let or drained out until it reaches approximately the same level as the water ahead.

What does the passage mainly discuss？

A．How canals are constructed.

B．Common types of canal boats and barges.

C．The world's largest canals.

D．How canals are used and classified.

点击查看答案

第8题

听力原文：In the second half of each year, many powerful storms are born in the tropical At

听力原文： In the second half of each year, many powerful storms are born in the tropical Atlantic and Caribbean seas. Of these, only about a half a dozen generate the strong, circling winds of 75 miles per hour or more that give them hurricane status, and several usually make their way to the coast. There they cause millions of dollars of damage, and bring death to large numbers of people.

The great storms that hit the coast start as innocent circling disturbances hundreds—even thousands—of miles out to sea. As they travel aimlessly over water warmed by the summer sun, they are carried westward by the trade winds. When conditions are just right, warm, moist air flows in at the bottom of such a disturbance, moves upward through it and comes out at the top. In the process, the moisture in this warm air produces rain, and with it the heat that is converted to energy in the form. of strong winds. As the heat increases, the young hurricane begins to swirl in a counter-clockwise motion.

Water, not wind, is the main source of death and destruction in a hurricane. A typical hurricane brings 6- to 12-inch downpours resulting in sudden floods. Worst of all is the powerful movement of the sea—the mountains of water moving toward the low-pressure hurricane center. The water level rises as much as 15 feet above normal as it moves toward shore.

When is an ordinary tropical storm called a hurricane？

A．When it begins in the Atlantic and Caribbean seas.

B．When it hits the coastline.

C．When it is more than 75 miles wide.

D．When its winds reach 75 miles per hour.

点击查看答案

第9题

听力原文： Scientists believe that when the oceans were young, they contained only a trace

of salt, and that the level of salinity has been going up gradually. Over the years, rains have been wearing away the reek mantle of the continent. Minerals released by these erosion have been carded to the sea by the flow of river water. This water adds several billions tons of salt to the ocean annually. There are other sources of oceanic salinity too; one source is underwater volcanic action. These eruptions occurred along the mid-ocean ridge and release great amount of salt into the sea each year. However, these sources don't increase the actual mineral composition of the water by much because the enormous chemical requirements of marine life. Oysters, clams, snails and other mollusk use salt to build shells and skeletons. Coral reefs also consume large amount of salt. Also, some salt leaves the ocean through the process of evaporation. As salts escape into the atmosphere, they go into the creation of rain drops, this is why the coast receives more rain. Salt exists in the atmosphere near the ocean, thereby attracting the increased moisture and producing rain.

What does the speaker say about the ocean's level of saltiness？

A．The level of saltiness in the ocean is extraordinarily high.

B．The average level of salinity in the ocean is higher than that of inland lakes.

C．Salt has been gradually accumulating in the ocean, which leads to a rise in oceanic salinity level.

D．Salt has accumulated very quickly at the early stage of life formation, then this process gradually slow down.

点击查看答案

第10题

SECTION BPASSAGESDirections: In this section, you will hear several passages. Listen to th

SECTION B PASSAGES

Directions: In this section, you will hear several passages. Listen to the passages carefully and then answer the questions that follow.

听力原文： Canals are watercourses constructed to improve and extend natural waterways. (11) They are generally built to facilitate transportation, but from the beginning they have been used for many additional purposes including draining swamps, irrigating land for cultivation, and promoting economic development.

(11) Canals are often classified by the size of vessel they can accommodate. Some small local canals, which are able to float only 100 to 300 ton boats or small rafts of timber, may be only 3 feet deep. Major barge canals generally range from 6 to 9 feet in depth, and some are as much as 10 or 12 feet deep. These canals can carry 1,350 to 2,000 ton craft. Ship canals are 25 feet or more deep and are capable of accommodating large vessels in the seagoing class.

Canals may also be classified as either water level or lock canals. (13) Water level canals do not vary in height along their courses. The best known of these is the Suez Canal, which is at sea level, Lock canals, which include most modern waterways, contain locks, or special devices for raising and lowering boats along their courses by changing the depth of the water. (12) Each lock is a stretch of water enclosed by gates at each end. After a boat enters the lock, water is let or drained out until it reaches approximately the same level as the water ahead.

What does the passage mainly discuss？

A．How canals are constructed.

B．Common types of canal boats and barges.

C．The world's largest canals.

D．How canals are used and classified.

点击查看答案

账号：尚未登录

登录没有账号？去注册

购买搜题卡

考试指南全部 >

2024年怎么快速提升学历哪些方法速度快 2024年初中学历升专科大概要多少钱考哪些内容自考英语专业考试科目一览表具体考哪几门 2024年自考会计大专科目及考试时间安排 2024年4月甘肃自考成绩查询入口已开通海南2024年10月自考本科需要什么学历条件及要求广西2024年10月自考报考条件及要求有哪些湖南2024年10月自考本科的条件有哪些有什么限制 2024自考文凭怎么考最全报考流程分享 2024年自考考试时间安排表开考时间是几月

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》和《购买须知》

立即支付已付款，但不能查看答案，请点这里登录即可>>

搜题卡使用说明

1. 搜题次数扣减规则：

功能	扣减规则
功能	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。

找回账号密码

联系在线客服

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 -

下载APP

关注公众号

TOP