Box jellyfish (箱型水母)are the most poisonous marine animals known to man. They measure 3 meters long and weigh up to 2 kilograms. They are pale blue and transparent in color, and get their name from the cube--like shape of their body, Box jellyfish have 6 eyes on all 4 sides of their body, although it is uncertain how they process what they see as they do not have a central nervous system. They also have up to 15 tentacles (觸須)growing from each corner of their body that have about 5,000 stinging(帶刺的)cells each.

Box jellyfish can be found primarily in the coastal waters off Northern Australia as well as throughout the Indo--Pacific. They prefer to live at river mouths. They do not have any organs to breathe, and will sleep on the ocean floor from 3 pm to dawn. Unlike other jellyfish that merely move along with the current, box jellyfish have developed a way to travel wherever they want to go. They will shoot themselves in a jet-like fashion, reaching speeds of up to 7.4 kilometers per hour.

The diet of box jellyfish consists of thing like fish, small animals, and even other jellyfish. They use their venom, a chemical which causes heart, skin, and breath failure, to kill their prey(獵物). Since box jellyfish have eyes, some scientists believe that they actively hunt their prey while others insist that they are just passive opportunists that will wait and catch anything that wanders into their tentacles.

Box jellyfish are responsible for more human deaths in Australia than snakes, sharks, and salt-water crocodiles combined. It is best to avoid them as most stings(刺) will result in death. Hopefully, humans and box jellyfish can find a way to live with one another while keeping conflicts to a bare minimum. After all, such a unique species of jellyfish deserves to live and grow just as humans do.

1.What do we NOT know about box jellyfish from the first paragraph?

A. Its size. B. Its hardness.

C. Its color. D. Its poisonousness

2.What can be learned about box jellyfish from Paragraph 2?

A. They live in the deep sea in groups

B. They can breathe on the ocean floor.

C. They usually move along with the current.

D. They can decide the direction in which they move.

3. The underlined word “they” in Paragraph3 refers to ________.

A. box jellyfish

B. scientists

C. box jellyfish’s prey

D. box jellyfish’s tentacles

4. The text is mainly about _________.

A. a kind of sea animal

B. some poisonous animals

C. scientists’ research into box jellyfish

D. the relationship between humans and jellyfish

練習(xí)冊系列答案
相關(guān)習(xí)題

科目:高中英語 來源:2016屆廣東省中山市高三3月高考模擬考試英語試卷(解析版) 題型:閱讀理解

It’s hard to predict the weather in the near future. It’s even more difficult to know what the climate of the coming season is like. Now you know the winter of 2011/12 was not warm but a freezing one/ many people in the Northern Hemisphere died of cold. but a Native American tribe was fortunate enough to survive the terrible winter because of what was foretold by a weatherman.

One day in early September o 2011 the chief of the Native American tribe was asked by his tribal elders if the winter was going to be cold or mild. The chief asked his medicine man, but the man also had lost touch with the reading signs from the natural world around the Great Lakes.

In truth, neither of them had idea about how to predict the coming winter. However, the chief decided to take a modern approach, and rang the National Weather Service in Gaylord Michigan.

“Yes, it is going to be a cold winter,” the weatherman told the chief. Consequently, the chief went back to his tribe and told his tribe people to collect plenty of firewood.

A fortnight later the chief called the National Weather Service and asked for an update. “Are you still forecasting a cold winter?” he asked.

“Yes, very cold,” the weatherman told him.

As a result of this brief conversation the chief went back to the tribe people to collect every bit of wood they could find.

A month later the chief called the National Weather Service once more and asked about the coming winter. “Yes,” he was told, “it s going to be one of the coldest winters ever.”

The weatherman was right! And the Native American tribe went comfortably through the terrifying winter. The chief was thankful and curious. He rang the weatherman again and asked, “How can you be so sure about it tat it was freezing winter?”

The weatherman replied, “Because the Native American tribe of the Great Lakes are collecting wood like crazy.”

1.The underlined words in Paragraph2 must be a person who .

A. only has the ability to cure illness

B. can foretell what will happen in the future

C. governs he whole American tribes

D. is a weatherman for the Great Lakes

2.The chief decided to take a modern approach, so he turned to .

A. his medicine man

B. his tribe people

C. a telephone

D. a weatherman

3.The native tribe survived the terrible winter mainly because of .

A. lucky coincidence

B. good leadership

C. scientific prediction

D. modern technology

4.The chief rang the weatherman several times out of .

A. anger B. excitement

C. curiosity D. doubt

查看答案和解析>>

科目:高中英語 來源:2015-2016學(xué)年廣東梅州蕉嶺縣蕉嶺中學(xué)高一下第一次質(zhì)檢英語卷(解析版) 題型:閱讀理解

Green is an important color in nature. It is the color of grass and the leaves on trees. It is also the color of most growing plants.

Sometimes, the word green means young, fresh and growing. Sometimes, it describes something that is not yet ripe(成熟的) or finished.

For example, a greenhorn is someone who has no experience, who is new to a situation. In the 15th century, a greenhorn was a young cow or ox whose horns(角) had not yet developed. A century or so later, a greenhorn was a soldier who had not yet had any experience in battle. By the 18th century, a greenhorn had the meaning it has today --- a person who is new in a job.

About 100 years ago, greenhorn was a popular expression in the American west. Old-timers used it to describe a man who had just arrived from one of the big cities back east. The greenhorn lacked the skills he would need to live in the west.

Someone who has the ability to grow plants well is said to have a green thumb. The expression comes from the early 1900s. A person with a green thumb seems to have a magic touch that makes plants grow quickly and well. You might say that the woman next door has a green thumb if her garden continues to grow long after your plants have died.

Green is also the color used to describe the powerful emotion, jealousy(嫉妒). The green-eyed monster is not a frightening creature from outer space. It is an expression used about four hundred years ago by British writer William Shakespeare in his play "Othello."

It describes the unpleasant feeling that a person has when someone has something that he wants. A young man may suffer from the green-eyed monster if his girlfriend begins going out with someone else. Or, that green-eyed monster may affect your friend if you get a pay raise and she does not.

In most places in the world, a green light is a signal to move ahead. A green light on a traffic signal means your car can continue on. In everyday speech, a green light means approval to continue with a project.

1.If a person was a greenhorn, he might ___________.

A. be good at growing plants

B. get along well with others

C. be a soldier in the 16th century

D. have no experience in doing something

2.When you have trouble in growing flowers, you can ask for help from ___________.

A. a green thumb B. a green light

C. a greenhorn D. a green-eyed monster

3.If a girl refuses your invitation to a dance party but accepting another gentleman’s, you may___________.

A. need to buy a green light

B. have to get a green thumb

C. show them your greenhorn

D. be affected by the green-eyed monster

4.What is the passage mainly about?

A. The origin of the word “green ”.

B. Some expressions concerning green.

C. The story of a green-eyed monster.

D. Some ways of how to use words properly.

查看答案和解析>>

科目:高中英語 來源:2015-2016學(xué)年甘肅武威二中高一下學(xué)期第一次月考英語試卷(解析版) 題型:完形填空

完形填空

閱讀下列短文,從短文后各題所給的四個選項(xiàng)(A.B.C和D)中,選出可以填入空白處的最佳選項(xiàng)。

Animals can be of great fun, but it’s important to know ___________ to be safe when you’re with them. Both indoor animals and outdoor animals need to be ___________ kindly all the time. This means different things on the animal and the situation. ___________ a wild animal, being kind may mean staying far away ___________ the animal doesn’t feel threatened and so you stay ___________ .

Stepping outside can mean a world full of great animals to see — ___________ squirrels in trees to birds in flight. In some parts of the world, kids ___________ see slithery snakes, black bats, ___________ even cool coyotes. And don’t forget raccoons, skunks, and other critters ___________ come out in some places at night.

The rule in the great outdoors is simple: Don’t ___________ or go near an animal. ___________ some of these animals may look cool or even cute, leave them ___________ . These animals aren’t like regular pets. They’re not ___________ to being around people and may bite or attack if you come near them. They also might have rabies(狂犬病).

Don’t ever try to ___________ a wild animal. Bird feeders are OK, but other animals, ___________ they look hungry, shouldn’t ever be fed. When it comes to these animals, it’s better for everyone if you stay ___________ and check them out at the zoo, on the Internet, on TV nature shows, or in books.

If a pet looks sick or is injured, stay far away. An animal that ___________ loves to be petted may get very ___________ and even bite when it is feeling ill. Tell an adult so he or she can get ___________ for the animal.

1.A. whatB. whyC. howD. which

2.A. taken careB. servedC. protectedD. treated

3.A. dependB. lookC. waitD. call

4.A. ToB. WithC. AsD. Treating

5.A. soB. andC. butD. because

6.A. safeB.dangerousC. threatenedD. calm

7.A. likeB. roundC. fromD. not only

8.A. shouldB. have toC. willD. may

9.A. orB. andC. butD. either

10.A. whatB. thatC. thoseD. who

11.A. touchB. lookC. feelD. keep

12.A. BecauseB. EvenC. AlthoughD. Since

13.A. outsideB. lonelyC. aloneD. quietly

14.A. usingB. usedC. being usedD. to be used

15.A. keepB. feedC. attackD. check

16.A. howeverB. ifC.afterCD. even if

17.A. closerB. closelyC. awayD. far

18.A. normallyB. alwaysC. rarelyD. often

19.A. happyB. satisfiedC. excitedD. upset

20.A. exerciseB. hopeC. planD. help

查看答案和解析>>

科目:高中英語 來源:2014-2015學(xué)年河北永年縣一中高二下期末考試英語試卷(解析版) 題型:短文改錯

短文改錯

增加:在缺詞處加一個漏字符號(),并在其下面寫出該加的詞。

刪除:把多余的詞用斜錢(\)劃掉。

修改:在錯的詞下劃一橫線,并在該詞下面寫出修改后的詞。

注意:

1. 每處錯誤及其修改均僅限一詞;

2.只充許修改10處,多者(從第11處起)不計分。

Once there lived a man who was such lazy that no job was fit him. In order to make a living he went to the neighbor of his for help one day. The neighbor advised to him to be a grave caretaker as it is the easiest job one could find. The lazy man was delighting and soon became a grave caretaker. And to everybody’s surprise he gave up his job three days before he got it. “It’s unfair.” He said to the neighbor angry. “In the grave all the others are lying still when I am the only one who has to stand.”

查看答案和解析>>

科目:高中英語 來源:2016屆遼寧沈陽市高三第一次模擬考試英語試卷(解析版) 題型:語法填空

閱讀下面材料,在空白處填入適當(dāng)?shù)膬?nèi)容(1個單詞)或括號內(nèi)單詞的正確形式。

Fabien Cousteau was born with deep love for the ocean. His grandfather and his father were ocean _1.__ (explore) and documentary filmmakers. Today, Fabien follows his family’s footstep, trying __2.__ (protect) the planet’s endangered ocean life __3.__ to strike a balance between environmental problems and market economies.

Fabien is well known for his study of sharks. In 2001,he created a TV special based on the shark attacks that __4.__(occur) along the New Jersey shoreline in 1916. Then in 2003,__5.__ the help of a large crew,F(xiàn)abien created a shark submarine that enabled him to put __6._(he) inside the shark world. For the next four years,F(xiàn)abien was part of a series called Ocean Adventures, __7.__ offered a rare look into some of the most fantastic ocean species. In 2010, Fabien and his team spent 31 days underwater to discover __8.__ climate change and pollution which are affecting the oceans.

Fabien is __9.__(current) working on a documentary film about the adventures of Mission 31, as well as _10.__ (build) an Ocean Learning Center to provide children with the opportunity to learn about oceans.

查看答案和解析>>

科目:高中英語 來源:2016屆湖北沙市高三下期第二次半月考英語試卷(解析版) 題型:書面表達(dá)

書面表達(dá)

假如你是李華,是一名高中生。隨著科技的發(fā)展,iPad已成為中學(xué)生的新寵。用iPad既可以聽音樂,閱讀純文本電子書,又可玩電子游戲。請你用英語給某英語報社寫一封信,談?wù)勚袑W(xué)生使用iPad的情況。信的內(nèi)容必須包括以下幾點(diǎn):

1、使用iPad對學(xué)習(xí)的好處:

2、對課堂紀(jì)律和學(xué)習(xí)可能產(chǎn)生的負(fù)面影響:

3、提出自己的建議并說明理由。

注意:開頭已經(jīng)給出,不計入總數(shù)。詞數(shù)100字左右

Dear Editor

I'm a senior high school student named Li Hua.

查看答案和解析>>

科目:高中英語 來源:2016屆河北省保定市高三第一次模擬考試英語試卷(解析版) 題型:閱讀理解

There is a growing number of kidults---or adults who wear the mask of maturity but prefer to pander(迎合) to their inner child.

They feel ill equipped for parenthood, because they don’t see what values or lessons they could honestly pass on to their young, besides self-centeredness and a passion for the good things in life. They are trying to live by not acting their age.

As Ms Jane put it in her letter: I’m married, in my late 20s and enjoy a lifestyle other married graduate couples enjoy: winning and dining, tasteful clothes, travel and a career. Why give up all these for a baby?

It is reported that when asked whether they were adults, most people in their 20s answered they were not sure. This reflected a global economy in which people chased more papers to get better jobs that would comfortably support middle class living.

Being a kidult is not all about being selfish, though. With the untold uncertainties of war, fluctuating(波動)markets, disease and terrorism, many see this world as a poor place to live in—let alone bring kids up in. This seems especially so in urban living. All anyone wants after a long, hard day at work is some peace and quiet.

My classmate, Jenny, mused(沉思)recently how our friends living in small Malaysian towns were onto their second or third kids. Maybe they just loved having children around. Or maybe, in their own way, they wanted to leave the world a better place than they found it.

That’s how you, I and everyone know we have the chance to breathe air, touch grass and see sky. I think out parents understand that just being alive is an experience worth passing on.

1.What is a kidult in the writer’s opinion?

A. A person who doesn’t have a child

B. An adult who actually has a psychology of a child

C. A child who doesn’t want to grow up

D. A person who doesn’t know that what values he has

2.What does the underlined word “paper” in Para. 4 mean?

A. money

B. reputation

C.qualification

D. power

3.The author explains the kidult phenomenon by ________.

A. presenting research findings

B. making comparison

C. showing her own experience

D. using examples

4.We can learn from the text that kidults________.

A. know little what they can pass on to their children

B. are sure of their abilities for good life

C. living in urban can enjoy more peace

D. living in small towns know well what they’re living for

查看答案和解析>>

科目:高中英語 來源:2015-2016學(xué)年貴州遵義航天高級中學(xué)高一3月考英語試卷(解析版) 題型:閱讀理解

EVENTS

Long March exhibit

The Shanghai History Museum is putting on an exhibition to mark the 60th anniversary of the Long March. On show are more than 220 photos and 40 items that explain with pictures how the communist Red Army drew back from its besieged(被圍困的) bases in Jiangxi Province and fought its way to northern Shaanxi Province in the mid-1930s. Explanations are all in Chinese. The show will end on November 20.

Time: 10:00 am-4:00 pm

Address: 1286 Hongqiao Road

Admission: 8 yuan for Chinese /15 yuan for foreigners

Thai elephants

Eight elephants from Thailand are entertaining visitors at Changfeng Park by riding bikes, playing basketball, balancing on a beam, dancing and blowing a mouthorgan. People are encouraged to have a tug-of-war(拔河比賽)with the animals or lie on the ground and have the elephants walk over them. The elephants give three shows a day at 9:30 am, 3:30 pm and 8:00 pm and there is an additional show at l:30 pm at weekends. The show will end on November 15.

Address: 189 Daduhe Road

Admission: 30-40 yuan

Dancing dolphins

Dolphins jumping from the water to touch a ball, swaying their bodies to music, kissing people and doing math by tapping their tails have made the dolphinarium(海豚館) in Peace Park an attraction for children. Seals and sea lions also perform.

Hours: 10:30 am, 4:00 pm, and 7:30 pm

Admission: 20 yuan for adults and 10 yuan for children.

1.If you go to visit the Long March exhibit with an Australian, how much will you pay altogether for the admission(入場費(fèi))?

A. 16 yuan.

B. 23 yuan.

C. 30 yuan.

D. 20 yuan.

2.At the exhibition, you will see ______.

A. books on the Long March

B. many things left by the Red Army

C. many articles written by famous writers

D. many photos and pictures about the Long March

3.The dolphinarium in Peace Park is a hall where you can see ______.

A. only seals perform

B. only dolphins perform

C. only seals and sea lions perform

D. not only dolphins but also seals and sea lions perform

查看答案和解析>>

同步練習(xí)冊答案