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The coastal area has verymildwinter, but the central plains remain extreme
A.severe
B.hard
C.warm
D.dry
请为划线处选择意义较为接近的一处选项
答案
更多“The coastal area has very mild winter, but the central plains remain extreme”相关的问题
第1题
The coastal has area has very mild winter， but the central plains remainextremely cold.
A.warm
B.severe
C.hard
D.dry
第2题
A.A.warm
B.B.severe
C.C.hard
D.D.dry 请为划线部分确定1个意义最为接近的选项
第3题
According to the speaker, why does coastal area receive more rain than land regions？
A．The ocean saturates the atmosphere with water.
B．More salt particles are suspenede in the air over the coast.
C．The dust from blowing sand causes moisture to condense.
D．Lower coastal elevations attract predictable weather patterns.
第4题
根据材料请回答 46～50
British Columbia is the third largest Canadian province, both in area and population.It is nearly one and a half times as large as Texas, and extends 800 miles (1,280 km)north from the United States border. 46 .
Most of British Columbia is mountainous, with long, rugged ranges running north
and south. 47 .During the last Ice Age, this range was scoured (侵蚀) by glaciers(冰川) until most of it was beneath the sea.Its peaks now show as islands scattered alongthe coast.
The southwestern coastal region has a humid mild marine climate.Sea winds that blow inland from the west are warmed by a current of warm water that flows through the Pacific Ocean, As a result, winter temperatures average above freezing and summers are mild. 48 .
49 .As they rise to-cross the mountains, the winds are cooled, and their moisture begins to fall as rain.On some of the western slopes almost 200 inches (500 cm)of rain fall each year.
Morethan half of British Columbia is heavily forested. 50 .These forest giants often grow to be as much.as 300 feet (90m) tall, with diameters upto 10 feet (3m).More lumber is produced from these trees than from any other kind of tree in North America.
A．On mountain slopes that receive plentiful rainfall, huge Douglas firs (洋松) rise in towering columns
B．It includes Canada's entire west coast and the islands just off the coast
C．These warm western winds also carry moisture from the ocean
D．Plants are the basis of the food pyramid for all living things, even for other plants
E．Even the coastal islands are the remains of a mountain range that existed thou-sands of years ago
F．Inland from the coast, the winds from the Pacific meet the mountain barriers of the coastal ranges and the Rocky Mountains
第 46 题 请选择（46）处的最佳答案
第5题
If the salinity(含盐量) of ocean waters is analyzed, it is found to vary only slightly from place to place.Nevertheless, some of these small changes are important. There are three basic processes that cause a change in oceanic salinity. One of these is the subtraction of water from the ocean by means of evaporation--conversion of liquid water to water vapor. In this manner, the salinity is increased, since the salts staybehind. If this is carried to the extreme, of course, white crystals of salt would be left behind.
The opposite of evaporation is precipitation(降水), such as rain, by which water is added to the ocean. Here the ocean is being diluted(稀释) so that the salinity is decreased. This may occur in areas of high rainfall or in coastal regions where rivers flow into the ocean. Thus salinity may be increased by the subtraction of water by evaporation, or decreased by the addition of fresh water by precipitation or runoff(形成地表水部分的降水).
Normally, in tropical regions where the sun is very strong, the ocean salinity is somewhat higher than it is in other parts of the world where there is not as much evaporation. Similarly, in coastal regions whererivers dilute the sea, salinity is somewhat lower than in other oceanic areas.
A third process by which salinity may be altered is associated with the formation and melting of sea ice. When seawater is frozen, the dissolved materials are left behind. In this manner, seawater directly beneath freshly formed sea ice has a higher salinity than it did before the ice appeared. Of course, when this ice melts, it will tend to decrease the salinity of the surrounding water.
In the Weddell Sea, off Antarctica, the densest water in the oceans is formed as a result of this freezingprocess, which increases the salinity of cold water. This heavy water sinks and is found in the deeper portions of the oceans of the world.
Choose correct answers to the question: The best title of the passage can be “_____”.
A.Typical Oceans and Their Respective Features
B.The Causes of the Changes in Salinity of Ocean Water
C.Different Oceans Have Different Salinity
D.The Precipitation and Evaporation of Oceans
Which of the following processes will increase salinity of ocean waters？A.Evaporation.
B.Precipitation.
C.Melting.
D.Dilution.
According to this passage, the sea _ is likely to have the lowest salinity.A.in tropical areas
B.off Antarctica
C.of high rainfall
D.with abundant
The Weddell Sea _____.
A.is a good example of increased salinity in freezing sea water
B.is much larger in area than the Arctic oceans
C.has a much lower salinity now than ever
D.has the denser water in its upper parts
Coastal regions are mentioned as cases where _____.A.sea water is less salty because fresh water joins in
B.rivers carry industrial exhaust into sea
C.sea ice tends to melt more quickly than in the center of oceans
D.heavy water sinks to the deeper portions of the oceans
请帮忙给出每个问题的正确答案和分析，谢谢！
第6题
听力原文： In the 1930s, archaeologists discovered spear points in the New Mexico town of Clovis, dated from around 13,000 years ago. The individuals who made them have since become known as the "Clovis people" and are believed by many to have been the first people to enter North America.
The "Clovis first" theory proposes that around 14,000 years ago people traveled across a land bridge that existed between Siberia and Alaska. Once in North America, their journey took them through a corridor that opened up between the ice sheets in Western Canada making them the first to be able to enter the interlor of the continent. It's an elegant and almost biblical explanation; but more recent fossil finds question the theory. Some researchers believe the first people entered North America much earlier—perhaps as long as 20,000-30,000 years ago.
In more recent years, the Pacific coast has been seen as an alternative route of entry-possibly at an earlier date than the Clovis. There is little direct evidence to support this, but fossil evidence from the islands of south-east Alaska tells us that this region, or part of it, was free of ice and may have been a refuge for animals throughout the ice age.
If animals such as bears and foxes lived here then why not people？ Fossilized human remains have been found on Alaska's Prince of Wales Island and much further south on the Channel Islands off California. These are thought to be as old as some of the Clovis .finds and it may only be a matter of time before older remains are discovered.
If people did travel down the coasts between islands, they must have used boats. Although the coastal route still lacks a lot of hard evidence, the relatively recent discovery of a stone tool off the coast of British Columbia has added support to the idea.
Why are "Clovis people" believed to first enter North America？
A．Some fossils have been discovered.
B．They were found to have lived in the area known as the refuge during the ice age.
C．Some spear points were discovered.
D．It is in accordance with the biblical explanation.
第7题
Which is NOT the measure New York has already taken to deal with future storms？
A．Setting new building codes.
B．Giving risky coastal development subsidy.
C．Updating flood maps.
D．Building a surge-barrier.
第8题
A．correspondences between coastal contours
B．proof of an original solitary land mass
C．level of sima underlying the continents
D．immobility of the African continent
E．relative heaviness of the continental masses
第9题
第三篇
Water
The second most important constituent (构成成份) of the biosphere (生物圈) is liquid water. This can only exist in a very narrow range of temperatures, since water freezes at 0℃ and boils at 100℃. Life as we know it would only be possible on the surface of a planet which had temperatures somewhere within this narrow range.
The earth's supply of water probably remains fairly constant in quantity. The total quantity of water is not known very accurately, but it is about enough to cover the surface of the globe to a depth of about two and three-quarter kilometers. Most of it is in the form. of the salt water of the oceans - about 97 per cent. The rest is fresh, but three-quarters of this is in the form. of ice at the Poles and on mountains, and cannot be used by living systems until melted. Of the remaining fractional which is somewhat less than one per cent of the whole, there is 10—20 times as much stored underground water as there is actually on the surface. There is also a tiny, but extremely important fraction of the water supply which is present as water vapor in the atmosphere.
Water vapor in the atmosphere is the channel through which the whole water
circulation (循环) of the biosphere has to pass. Water evaporated (蒸发) from the surface of the oceans, from lakes and rivers and from moist (潮湿的) earth is added to it. From it the water comes out again as rain or snow, falling on either the sea or the land. There is, as might be expected, a more intensive evaporation per unit area over the sea and oceans than over the land, but there is more rainfall over the land than over the oceans, and the balance is restored by the runoff from the land in the form. of rivers.
41 Liquid water only exists
A in the center of the earth.
B on the surface of our planet.
C in a very narrow range of temperatures
D in the coastal areas of the earth.
第10题
The "Clovis first" theory proposes that around 14,000 years ago people traveled across a land bridge that existed between Siberia and Alaska. Once in North America, their journey took them through a corridor that opened up between the ice sheets in Western Canada making them the first to be able to enter the interlor of the continent. It's an elegant and almost biblical explanation; but more recent fossil finds question the theory. Some researchers believe the first people entered North America much earlier—perhaps as long as 20,000-30,000 years ago.
In more recent years, the Pacific coast has been seen as an alternative route of entry-possibly at an earlier date than the Clovis. There is little direct evidence to support this, but fossil evidence from the islands of south-east Alaska tells us that this region, or part of it, was free of ice and may have been a refuge for animals throughout the ice age.
If animals such as bears and foxes lived here then why not people？ Fossilized human remains have been found on Alaska's Prince of Wales Island and much further south on the Channel Islands off California. These are thought to be as old as some of the Clovis .finds and it may only be a matter of time before older remains are discovered.
If people did travel down the coasts between islands, they must have used boats. Although the coastal route still lacks a lot of hard evidence, the relatively recent discovery of a stone tool off the coast of British Columbia has added support to the idea.
Why are "Clovis people" believed to first enter North America？
A．Some fossils have been discovered.
B．They were found to have lived in the area known as the refuge during the ice age.
C．Some spear points were discovered.
D．It is in accordance with the biblical explanation.
