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Sharks Perform. a Service for Earth's WatersIt is hard to get people to think of sharks as

Sharks Perform. a Service for Earth's Waters

It is hard to get people to think of sharks as anything but a deadly enemy. They are thought to 【51】______ people frequently. Although these fish perform. a valuable 【52】______ for earth's waters and for human beings, business and sport fishing are threatening their 【53】______. As a result, some sharks are at risk of disappearing from Earth.

Warm weather may influence both fish and shark 【54】______. Many fish swim near coastal areas because of their 【55】______ waters. Experts say sharks may follow the fish into the same areas, 【56】______ people also swim. In fact, most sharks do not purposely charge at or bite humans. They are thought to mistake a person 【57】______ a sea animal, such as a seal(海豹) or sea lion. That is why people should not swim in the ocean when the sun goes down or comes up, because those are the times when sharks are looking for 【58】______. Experts also say that bright colors and shiny jewelry(珠宝) may cause sharks to attack.

A shark has an extremely good sense of 【59】______, with which it can find small amounts of substances in water, such as blood, body liquids and chemicals 【60】______ by animals. These powerful senses help sharks find their food. Sharks eat fish, any 【61】______ sharks, and plants that live in the ocean.

Medical researchers want to learn more about the shark's body defense and immune(免疫的) 【62】______ against disease. Researchers know that sharks 【63】______ quickly from injuries. They study the shark in hopes of finding a way to fight human disease.

Sharks are important for the world's oceans, as they eat injured and diseased fish. Their 【64】______ activities mean that the numbers of other fish in ocean waters do not become too 【65】______. This protects the plants and other forms of life that exist in the oceans.

A.attack

B.meet

C.recognize

D.visit

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更多“Sharks Perform. a Service for …”相关的问题
第1题
根据以下资料,回答{TSE}题。 Sharks Perform. a Service for Earth’s Waters {TS}请在第____

根据以下资料,回答{TSE}题。 Sharks Perform. a Service for Earth’s Waters根据以下资料,回答{TSE}题。 Sharks Perform. a Service for Ear根据以下资料,回答{TSE}题。 Sharks Perform. a Service for Ear{TS}请在第____处填上正确答案。

A. meet

B. attack

C. recognize

D. visit

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第2题
根据材料,回答题。 Sharks Perform. a Service for Earth"s Waters.It is hard to get people to

根据材料,回答题。

Sharks Perform. a Service for Earth"s Waters.

It is hard to get people to think of sharks as anything but a deadly enemy. They are thought to________ (51 )people frequently. But these fish perform. a ________ (52 )service for earth"s waters and for human beings. Yet business and sport fishing are threatening their________ (53). Some sharks are at ________ (54) of disappearing from earth.

Warm weather may influence both fish and shark activity. Many fish swim near coastal areas________ (55 ) their warm waters. Experts say sharks may follow the fish into the same areas,________ (56)people also swim. In fact,most sharks do not purposely charge at or bite humans.

They are thought to mistake a person________ (57 ) a sea animal, such as a seal or sea lion. That is why people should not swim in the ocean when the sun goes down or comes up. Those are the________.(58 )when sharks are looking for food. Experts also say that bright colors and shiny jewelry may cause sharks to attack.

A shark has an extremely good sense of smell. It can find small amounts of substances in water, such as blood, body liquids and ________ (59)produced by animals. These powerful________ (60) help sharks find their food. Sharks eat fish, any________ (61 ) sharks ,and plants that live in the ocean.

Medical researchers want to learn more about the shark"s body defense and immune systems________ .(62) disease. Researchers know that sharks ________ (63)quickly from injuries. They study the shark in hopes of finding a way to fight human disease.

Sharks are important for the world"s________.(64). They eat injured and diseased fish. Their hunting activities mean that the numbers of other fish in ocean waters do not become too________ (65). This protects the plants and other forms of life that exist in the oceans.

回答(51)题 查看材料

A.attack

B.meet

C.love

D.visit

点击查看答案
第3题
根据以下材料,回答题Sharks Perform. a Service for Earth"s WatersIt is hard to get people to

根据以下材料,回答题

Sharks Perform. a Service for Earth"s Waters

It is hard to get people to think of sharks as anything but a deadly enemy. They are thought to 51______ people frequently. But these fish perform. a 52______ service for earth"s waters and for human beings. Yet business and sport fishing are threatening their 53______ Some sharks are at risk of disappearing from 54______

Warm weather may influence both fish and shark activity. Many fish swim near coastal areas 55______ their warm waters. Experts say sharks may follow the fish into the same areas,56______ people also swim. In fact, most sharks do not purposely charge at or bite humans. They are thought to mistake a person 57______ a sea animal, such as a seal or sea lion. That is why people should not swim in the ocean when the sun goes down or comes up. Those are the 58______ when sharks are looking for food. Experts also say that bright colors and shiny jewelry may cause sharks to attack.

A shark has an extremely good sense of smell4. It can find small amounts of substances in water, such as blood, body liquids and 59______ produced by animals. These powerful 60______ help sharks find their food. Sharks eat fish, any 61______ sharks, and plants that live in the ocean.

Medical researchers want to learn more about the shark"s body defense, and immune 62______ against disease. Researchers know that sharks 63______ quickly from injuries. They study the shark in hopes of finding a way to fight human disease.

Sharks are important for the world"s 64______. They eat injured and diseased fish. Their hunting activities mean that the numbers of other fish in ocean waters do not become too 65______

This protects the plants and other forms of life that exist in the oceans.

回答(51)题 查看材料

A.attack

B.meet

C.love

D.visit

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第4题
下面的短文有15处空白,请根据短文内容为每处空白确定一个最佳选项。Sharks Perform. a Service fo

下面的短文有15处空白,请根据短文内容为每处空白确定一个最佳选项。

Sharks Perform. a Service for Earth's Waters

It is hard to get people to think of sharks as anything but a deadly enemy. They are thought to (51) people frequently. Although these fish perform. a valuable (52) for earth's waters and for human beings, business and sport fishing are threatening their (53) . As a result, some sharks are at risk of disappearing from Earth.

Warm weather may influence both fish and shark (54) . Many fish swim near coastal areas because of their (55) waters. Experts say sharks may follow the fish into the same areas, (56) people also swim. In fact, most sharks do not purposely charge at or bite humans. They are thought to mistake a person (57) a sea animal, such as a seal (海豹) or sea lion. That is why people should not swim in the ocean when the sun goes down or comes up, because those are the times when sharks are looking for (58) . Experts also say that bright colors and shiny jewelry (珠宝) may cause sharks to attack.

A shark has an extremely 'good sense of (59) , with which it can find small amounts of substances in water, such as blood, body liquids and chemicals (60) by animals. These powerful senses help sharks find their food. Sharks eat fish, any (61) sharks, and plants that live in the ocean.

Medical researchers want to learn more about the shark's body defense and immune (免疫的) (62) against disease. Researchers know that sharks (63) quickly from injuries. They study the shark in hopes of finding a way to fight human disease.

Sharks are important for the world's oceans, as they eat injured and diseased fish. Their (64) activities mean that the numbers of other fish in ocean waters do not become too (65) . This protects the plants and other forms of life that exist in the oceans.

51 A meet B attack C recognize D visit

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第5题
听力原文:A community theatre is an important part of almost every city or town in the Unit

听力原文: A community theatre is an important part of almost every city or town in the United States. There are over 2,000 community theatres in the United States today, about 4.5 million people work or perform. in these theatres for an audience of more than 50 million people annually. These theatres are amateur organizations and are different from professional theatre companies. A community theatre may have its own building or perform. in a school or church hall. The actors and actresses do not receive money for their work in the community theatre. They have other jobs to support themselves instead. Small communities can't support a full time theatre. They cannot pay actors, directors or stage workers, se the theatre participants work for free. One purpose of community theatre is to provide an opportunity for creative work. Many people join in community theatres because they want to perform. or to do creative. Several people in a community theatre group were asked why they join. Each one said he or she needed to do something creative, to be something original. One man said, "I love acting. It's the only time I feel alive. ' Another said, "I have a very boring job. In the play, I can create something." One woman said, "My whole life la occupied by husband and family. I need something more than that." Another purpose of community theatre is to educate and improve the community. Theatre is an art but also introduces new ideas to the audience.

(20)

A.About 45 million.

B.About 50 million.

C.About 5.4 million.

D.About 4.5 million.

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第6题
A.All sharks have teeth.B.A shark can have six rows of teeth.C.A shark can have hundre

A.All sharks have teeth.

B.A shark can have six rows of teeth.

C.A shark can have hundreds of teeth.

D.All sharks have extremely sharp teeth.

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第7题
Sharks eat their food by ______?A.suckingB.swallowingC.grindingD.chewing

Sharks eat their food by ______?

A.sucking

B.swallowing

C.grinding

D.chewing

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第8题
Which of the following sharks is the most common sharks?A.The whale shark.B.The spiny dogf

Which of the following sharks is the most common sharks?

A.The whale shark.

B.The spiny dogfish shark.

C.The basking shark.

D.The great white shark.

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第9题
Which of he following sharks is the most common shark?A.The whale shark.B.The spiny dogfis

Which of he following sharks is the most common shark?

A.The whale shark.

B.The spiny dogfish shark.

C.The basking shark.

D.The great white shark.

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第10题
Sharks eat their food by ______?A.suckingB.grindingC.chewingD.swallowing

Sharks eat their food by ______?

A.sucking

B.grinding

C.chewing

D.swallowing

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