【題目】When 18thcentury scientists first came across Australia’s platypus (鴨嘴獸)，they thought it was a trick.It is not surprising that the platypus made people confused.This funnylooking animal has feet and is a kind of warmblooded mammal(哺乳動(dòng)物)．

While other mammals usually keep their blood at around 37 degrees，the platypus has a lower body temperature of 32 degrees.As to its appearance，the platypus’ mouth is not really like the duck’s; its mouth actually looks a bit softer.The platypus closes its eyes when swimming instead of watching its hunters.It uses its mouth to pick up outside information made by the creatures underwater.

Strangest of all，the platypus is a mammal that can lay eggs.And there is only one other kind of mammal that can lay eggs，the echidna(針鼴鼠) of Australia.Both the platypus and the echidna lay soft shelled eggs，and both feed their young with their own milk that comes out of their skin.These animals also walk in a way that is similar to crocodiles (鱷魚)，with legs on the sides of their bodies rather than under them.

Though pretty in a special way，the platypus is actually one of the few mammals that are poisonous.A male platypus has knifelike bones on its back legs which have enough poison to kill a dog.

The platypus has the honor of being one of the oldest mammals in the world.Until the early 20thcentury，it was hunted for its fur，but it is now protected.Although the platypus is easily influenced by pollution，it is not under any immediate threat.

【1】What can we learn about he platypus?

A．It has a lower body temperature than other mammals.

B．It only closes its eyes when underwater.

C．It’s the only poisonous mammal in the world.

D．It feeds its young on wild animal meat.

【2】Which of the following is NOT used as a comparison in the passage?

A．The crocodile.

B．The echidna.

C．The duck.

D．The dog.

【3】The characteristics of the platypus that have been described in the passage include________．

a．the color of its skin

b．the way it gets information

c．its walking pose

d．its strange appearance

A．b－c－d

B．a(chǎn)－b－c

C．a(chǎn)－c－d

D．a(chǎn)－b－d

【4】We can learn from the last paragraph that the platypus is________．

A．hunted for its meat

B．in danger of extinction

C．endangered because of air pollution

D．wellprotected now

【答案】【1】 A

【2】 D

【3】 A

【4】 D

【解析】【1】細(xì)節(jié)理解題。根據(jù)第二段第一句可知鴨嘴獸的體溫比其他哺乳動(dòng)物較低，正確答案為A。根據(jù)第二段倒數(shù)第二句可知鴨嘴獸在水中會(huì)閉上眼睛，B與文意不一致；由第四段第一句可知鴨嘴獸不是唯一有毒的哺乳動(dòng)物，故C有誤；根據(jù)第三段第三句可知母鴨嘴獸用乳汁喂養(yǎng)后代，D項(xiàng)錯(cuò)誤。

【2】細(xì)節(jié)理解題。第三段最后一句提到鴨嘴獸和針鼴鼠像鱷魚一樣爬行，故A項(xiàng)是一個(gè)比較對象；第二段第二句提到鴨嘴獸的嘴不完全像鴨子，可知C項(xiàng)是一個(gè)比較對象；第三段提到針鼴鼠和鴨嘴獸的一些共同特征，故B項(xiàng)是一個(gè)比較對象；第四段最后一句只提到鴨嘴獸的毒素足以殺死一條狗，但沒有拿鴨嘴獸和狗作比較，故D項(xiàng)不正確。因此答案為D。

【3】細(xì)節(jié)理解題。文章第二段最后一句提到了鴨嘴獸獲取信息的途徑；第三段最后一句提到了鴨嘴獸的走路姿勢；第二段第二句提到了鴨嘴獸的外表。故b、c、d三項(xiàng)均符合文意，故答案為A。文中第三段第三句提到母鴨嘴獸靠體內(nèi)分泌的乳汁喂養(yǎng)后代，但沒有提到鴨嘴獸的皮膚顏色，故a不正確。

【4】細(xì)節(jié)理解題。根據(jù)最后一段最后兩句可知鴨嘴獸從前被捕獵者們獵取皮毛，但現(xiàn)在是受保護(hù)動(dòng)物，它的生存沒有受到直接威脅，A項(xiàng)錯(cuò)誤；雖然鴨嘴獸易受污染影響但并沒提到空氣污染使它們?yōu)l臨滅絕，故B項(xiàng)和C項(xiàng)也不對。

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源： 題型：

【題目】The manager is said to have arrived back from Paris where he __________ some European business partners.

A. would meet

B. is meeting

C. meets

D. had met

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】—Thank you so much for changing the flat tire for me.

—Don’t mention it. I only did what anyone else in my place.

A. must do B. should do

C. may have done D. would have done

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】__________ around Tian'anmen Square, the tourists were taken to visit the Palace Museum.

A. Showing

B. Having shown

C. Being shown

D. Having been shown

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】It's the second time that I __________ in Shanghai ！ What great changes have taken place in Shang Hai. It is ten years since I __________ it last time.

A. have been ； left

B. had been ； left

C. have been ；had left

D. went ；had left

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】As modern equipment is being used widely，the factory________some of its workers with robots.

A．represents B．replaces

C．exchanges D．reduces

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】Mary went to the box office at lunch time, but all the tickets __________ out.

A. would sell

B. had sold

C. have sold

D. was selling

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】【改編】Is language, like food, a basic human need without which a child at a critical period of life can be starved and damaged? Judging from the experiment of Frederick in the thirteenth century, it may be. Hoping to discover what language a child would speak if he heard no mother tongue, he told the nurses to keep silent.

All the infants died before the first year. But clearly there was more than lack of language here. What was missing was mothering. Without good mothering, in the first year of life especially, the capacity to survive is seriously affected.

Today no such severe lack exists as that ordered by Frederick. Nevertheless, some children are still backward in speaking. Most often the reason for this is that the mother is insensitive to the signals of the infant, whose brain is programmed to learn language rapidly. If these sensitive periods are neglected, the ideal time for acquiring skills passes and they might never be learned so easily again. A bird learns to sing and to fly at the right time, but the process is slow and hard once the critical stage has passed.

Experts suggest that speech stages are reached in a fixed order and at a constant age, but there are cases where speech has started late in a child who eventually turns out to be of high IQ. At twelve weeks a baby smiles and makes vowel-like sounds; at twelve months they can speak simple words and understand simple commands; at eighteen months he has a vocabulary of three to five words. At three he knows about 1,000 words, which he can put into sentences, and at four his language differs from that of his parents in style rather than grammar.

Recent evidence suggests that an infant is born with the capacity to speak. What is special about man’s brain, compared with that of the monkey, is the complex system which enables a child to connect the sight and feel of, say, a toy-bear with the sound pattern “toy bear”. And even more incredible is the young brain’s ability to pick out an order in language from the mixture of sound around him, to analyze, to combine and recombine the parts of a language in new ways.

But speech has to be induced（激發(fā)，引起）, and this depends on interaction between the mother and the child, where the mother recognizes the signals in the children’s babbling（咿呀聲）,grasping and smiling, and responds to them. Insensitivity of the mother to these signals dulls the interaction because the child gets discouraged and sends out only the obvious signals. Sensitivity to the child’s nonverbal signals is essential to the growth and development of language.

【1】The experiment of Frederick proved ____.

A. lack of mothering didn’t affect the development of a baby

B. only lack of language could kill a baby

C. very cruel to the babies in the experiment

D. babies could be starved to death

【2】Why are some children backward in speaking?

A. Because they are born disabled.

B. Because they lack language input when in sensitive periods.

C. Because they are exposed to too much language at once.

D. Because their mothers are not smart enough

【3】Which of the following is true ?

A. If a child starts to speak later than others, he will be backward in future.

B. If the ideal time for acquiring skills passes, there will be a second time.

C. A child can only imitate others’ language.

D. An infant is born with the ability to speak.

【4】What is the purpose of the example of birds in the third paragraph?

A. To prove the importance of the sensitive periods.

B. To prove birds has the same ability to speak as human.

C. To explain why some birds can’t sing.

D. To inform the results of Frederick’s experiment.

【5】where can you read this passage?

A. In a science report.

B. In an Entertainment magazine.

C. In a health report.

D. In a science fiction story.

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】目前，學(xué)校存在少數(shù)學(xué)生考試作弊現(xiàn)象。某英文雜志社擬對此現(xiàn)象向中學(xué)生征文，標(biāo)題是“My Opinion on Cheating in Examinations”。 請根據(jù)下列提示用英語寫一篇征文稿。

內(nèi)容要點(diǎn)如下：

主要原因：1．考試偏多，偏難；

2．不用功，懶惰；

3．取悅父母和老師。

個(gè)人看法：1．作弊不對，違反校規(guī)；

2．要誠實(shí)，努力學(xué)習(xí)；

3．寫出自己的其他看法。

注意：

1．短文必須包括所有內(nèi)容要點(diǎn)，可適當(dāng)發(fā)揮；

2．短文標(biāo)題與開頭已為你寫好，不計(jì)入總詞數(shù)。詞數(shù)100左右。

My Opinion on Cheating in Examinations

It is known to us all that some students cheat in examinations at school.

查看答案和解析>>

同步練習(xí)冊答案