Plants are very important living things. Life could not go on if there were no plants. This is because plants can make food from air. water and sunlight. Animals and man cannot make food from air. wat 题目和参考答案——青夏教育精英家教网—

精英家教网 > 高中英语 > 题目详情

Plants are very important living things. Life could not go on if there were no plants. This is because plants can make food from air， water and sunlight. Animals and man cannot make food from air， water and sunlight. Animals get their food by eating plants and other animals. Therefore animals and man need plants in order to live. This is why we find that there are so many plants around us.
If you look carefully at the plants around you， you will find that there are two kinds of plants： flowering plants and non-flowering plants. Flowering plants can make seeds. The seeds are protected by the fruits. Some fruits have one seed， some have two， three or four， and some have many seeds. But a few fruits have no seeds at all. An example of a fruit without seeds is the banana fruit. Most non-flowering plants do not grow from seeds. They grow from spores（胚芽）。 Spores are very small. Some spores are so small and light that they can float in the air. We may say that spores are quite the same as seeds. When these spores are all on wet and shady places， they usually grow into new plants.
62.小题1:The main idea of the first paragraph is that ______.

A．plants are important for life	B．plants cannot grow without air
C．there are many plants in the world	D．we can not live without water

63.小题2:What can we infer（推断） from the passage ？

A．Of all living things animals are most.	B．Spores are seeds.
C．All fruits of flowering plants have seeds.	D．Without plants，man will die out.

64.小题3:What is the meaning of the underlined word?

A．Kept.

B．Guarded.

C．Prevented.

D．Surrounded

65.小题4:This passage may be taken from______.

A．a medicine book	B．a novel
C．a science magazine	D．an experiment report

小题1:A
小题2:B
小题3:B
小题4:C

小题1:主旨推理题。第一段说明了人和动物都需要植物。
小题2:细节推理题。根据文章可以排除A.B.C。
小题3:词义推理题。Protect 与guard都是保护的意思。
小题4:推理题。文章在第一段讲了植物的重要性。第二段又说明了植物的种类以及植物的种子、胚芽等概念。是一篇科技说明文。

练习册系列答案

年级	高中课程	年级	初中课程
高一	高一免费课程推荐！	初一	初一免费课程推荐！
高二	高二免费课程推荐！	初二	初二免费课程推荐！
高三	高三免费课程推荐！	初三	初三免费课程推荐！
更多初中、高中辅导课程推荐,点击进入>>

相关习题

科目：高中英语 来源：不详 题型：阅读理解

These days we hear a lot about how air pollution is changing temperatures on the earth. New evidence from a mountaintop in China now suggests that pollution can also change the amount of rain and snow that falls in some places.
Usually, more rain falls in mountainous places than in flat areas upwind from the mountains. That’s because air can hold a lot of water. When wind blows wet air up a mountainside, the air gets colder. This temperature change often forces water to fall as rain or snow.
In recent years, however, many mountainous areas in the western United States have been getting less rain than normal. Mountains that are downwind from cities have experienced the biggest drops.
Some scientists have theorized（推理）that pollution drifts （趋势）from the cities into the mountains, affecting rainfall, but proving this link has been difficult.
Searching for answers, a team led by a scientist from the Hebrew University went to s mountain in China called Mount Hua, which is 2,060 meters tall and lies about 120 kilometers east of the Chinese city Xi’an. Since 1954, scientists have been collecting details about rainfall, humidity（湿度）, and visibility（能见度）in the area.
Using this data, the scientists compared rainfall on Mount Hua to rainfall in the nearest city, Huayin, on days with different levels of visibility. When the air was clear and people could see as far as 20 km, the scientists found that 65% more rain fell on the mountain than in the city.
But when the air was smoggy, allowing only 8 km of visibility through the mist, the mountain received just 20% more rain than the city. The new data supports the theory that pollution affects rainfall.
Some scientists believe that there are other explanations for the numbers. It’s possible, for example, that natural particles（微粒）in the air, rather than particles produced by pollution, are affecting visibility.
小题1:According to the 1^st paragraph, air pollution is changing the following EXCEPT ______.

A．the temperature	B．the amount of rain
C．the habit of eating	D．the amount of snow

小题2:According to the passage, what will probably happen when the wet air in the sky gets colder?

A．It will probably rain or snow	B．It will probably be cloudy.
C．It will probably wind	D．It will probably become dry.

小题3:Why did the team led by a scientist go to Mount Hua?

A．They wanted to pay a visit to Mount Hua.

B．They wanted to collect the data for their theory.

C．They wanted to measure Mount Hua.

D．They wanted to have a good rest on Mount Hua.

小题4:You can most probably read the passage in _______.

A．a travel guide

B．a telephone book

C．a cartoon book

D．a science book

查看答案和解析>>

科目：高中英语 来源：不详 题型：阅读理解

Sports shoes that work out whether their owner has done enough exercise to warrant time in front of the television have been devised in the UK.
The shoes — named Square Eyes — contain an electronic pressure sensor and a tiny computer chip to record how many steps the wearer has taken in a day. A wireless transmitter(传话器) passes the information to a receiver connected to a television, and this decides how much evening viewing time the wearer deserves, based on the day’s efforts.
The design was inspired by a desire to fight against the rapidly ballooning waistlines among British teenagers, says Gillian Swan, who developed Square Eyes as a final year design project at Brunel University to London, UK. “We looked at current issues and childhood overweight really stood out,” she says. “And I wanted to tackle that with my design.”
Once a child has used up their daily allowance gained through exercise, the television automatically switches off. And further time in front of the TV can only be earned through more steps.
Swan calculated how exercise should translate to television time using the recommended daily amounts of both. Health experts suggest that a child take 12,000 steps each day and watch no more than two hours of television. So, every 100 steps recorded by the Square Eyes shoes equals precisely one minute of TV time.
Existing pedometers （计步器） normally clip onto a belt or slip into a pocket and keep count of steps by measuring sudden movement. Swan says these can be easily tricked into recording steps through shaking. But her shoe has been built to be harder for lazy teenagers to cheat. “It is possible, but it would be a lot of effort,” she says. “That was one of my main design considerations.”
小题1:According to Swan, the purpose of her design project is to ________.

A．keep a record of the steps of the wearer

B．deal with overweight among teenagers

C．enable children to resist the temptation of TV

D．prevent children from being tricked by TV programs

小题2:Which of the following is true of Square Eyes shoes?

A．They regulate a child’s evening TV viewing time.

B．They determine a child’s daily pocket money.

C．They have raised the hot issue of overweight.

D．They contain information of the receiver.

小题3:What is stressed（强调）by health experts in their suggestion?

A．The exact number of steps to be taken.

B．The precise number of hours spent on TV.

C．The proper amount of daily exercise and TV time.

D．The way of changing steps into TV watching time.

小题4:Compared with other similar products, the new design ________.

A．makes it difficult for lazy teenagers to cheat

B．counts the wearer’s steps through shaking

C．records the sudden movement of the wearer

D．sends teenagers’ health data to the receiver

小题5:Which of the following would be the best title for the text?

A．Smart Shoes Decide on Television Time

B．Smart Shoes Guarantee More Exercise

C．Smart Shoes Measure Time of Exercise

D．Smart Shoes Stop Childhood Overweight

查看答案和解析>>

科目：高中英语 来源：不详 题型：阅读理解

A strong wind can be a dangerous thing — sometimes it is powerful enough to knock you off your feet. But to plants, the wind is a source of new life, carrying them or their spores (孢子) thousands of miles.
A NASA satellite called QuikSCAT has discovered highways of wind over the Earth's oceans. Scientists believe these invisible roads may explain why many nonflowering plants, such as mosses (苔) and lichens (地衣), grow where they do.
The satellite is able to send microwaves (微波) from space to the surface of the ocean. The pattern of signals that come back shows which way the winds are blowing.
Using this data, the scientists studied a group of islands in the southern hemisphere (半球), near Antarctica．Winds tend to blow anticlockwise (逆时针) in this region, but there are lots of local differences.
When the researchers compared these local patterns to botanical (植物学) data, they found that the wind had an important effect on where species of mosses, lichens, and other nonflowering plants grow.
For example, Bouvet Island and Heard Island, share 30 per cent of their moss species, 29 per cent of liverworts (叶苔), and 32 per cent of lichens — even though they are 4,430 kilometers apart. In contrast, Gough Island and Bouvet Island, separated by just 1,860 kilometers of sea, share only 16 per cent of mosses and 17 per cent of liverworts. They have no lichens in common.
Ferns (蕨类植物) and flowering plants don't travel as well in the wind, so they don't show the same kinds of distribution (分布) patterns.
小题1:This story is about _____.

A．the discovery of wind highways	B．how wind travels
C．how wind affects different plants	D．one function of the wind

小题2:The underlined word "data" in the fourth paragraph means _____.

A．signal

B．pattern

C．information

D．research

小题3: Which of the following is wrong?

A．Bouvet Island, Heard Island and Gough Island are all in the southern hemisphere.

B．Winds in the researched area blow anti-clockwise.

C．The scientists shouldn't base this research on how winds affect where ferns grow.

D．Without the discovery of QuikSCAT, the research wouldn't have made sense.

小题4: Which of the following diagrams shows the correct position of the islands?

查看答案和解析>>

科目：高中英语 来源：不详 题型：完形填空

Of all living creatures on earth, insects are the most plentiful. Some　 36　 are very useful to man, for example, bees,　 37　 we get honey and wax, and silkworms, which　 38　 us with silk. Other varieties,　39　, are extremely harmful, and do a great　 40　 of damage, especially to crops. Locusts （蝗虫） are perhaps the most dangerous of all,　 41　 they will eat almost any green　 42　 , and when millions of them　 43　 on cultivated land（耕地）they soon leave it　 44　. In some countries they are the farmer’s　 45　 enemy. Another nuisance is the common　 46　 , not only because it　 47　 us indoors and out - of- doors, but because it spreads diseases.
　　Scientists have given much time and　 48　 to the study of insects. It needs the most careful and　 49　 observation. Thanks　 50　 their discoveries we now know almost all　51　is to be known about the habits of these hardworking insects, bees and ants, which live in　52　better planned in some ways than our　　53　 . But the most valuable work has been done in trying to give　 54　 to men, animals and crops from the　 55　 which insects cause.
　　36．A. members B. forms C. qualities D. varieties
　　37．A. by which B. from which C. of which D. in which
　　38．A. give B. produce C. offer D. supply
　　39．A. however B. meanwhile C. therefore D. what's more
　　40．A. majority B. number C. amount D. quantity
　　41．A. and B. for C. if D. when
　　42．A. grass B. field C. fruit D. plant
　　43．A. settle B. attack C. pass D. cross
　　44．A. bare B. nothing C. empty D. untouched
　　45．A. hardest B. greatest C. serious D. wildest
　　46．A. insect B. creature C. fly D. enemy
　　47．A. dislikes B. bites C. worries D. hates
　　48．A. understanding B. ideas C. comprehension D. thought
　　49．A. serious B. patient C. curious D. long
　　50．A. for B. of C. to D. with
　　51．A. that B. which C. there D. what
　　52．A. societies B. crowds C. teams D. organizations
　　53．A. world B. nation C. selves D. own
　　54．A. help B. protection C. living D. defense
　　55．A. injury B. wound C. sickness D. ruin

查看答案和解析>>

科目：高中英语 来源：不详 题型：阅读理解

For some time past,it has been widely accepted that babies—and other creatures—learn to do things because certain acts lead to “rewards(报酬)”,and there is no reason to doubt that this is true. But it used also to be widely believed that effective rewards, at least in the early time, had to be directly connected to such basic physiological(生理的) “drives” as thirst or hunger. In other words, a baby would learn if he got food or drink or some sort of physical comfort, not otherwise.?
It is now clear that this is not so. Babies will learn to behave in ways that produce results in the world with no reward except success in sight.?
Papousek began his studies by using milk in the normal way to “reward” the babies and to teach them to carry out some simple movements, such as turning the head to one side or the other.Then he noticed that a baby who had had enough to drink would refuse the milk but would still go on making the learned response(回答) with clear signs of pleasure. So he began to study the children's responses in situations where no milk was provided. He quickly found that children as young as four months would learn to turn their heads to right or left if the movement “turned on” some lights—and indeed that they were able to learn some more turns to bring about(产生) this result,for example,two left or two right,or even to make as many as three turns to one side.?
Papousek's light experiment was placed directly in front of the babies and he made the interesting observation that sometimes they would not turn back to watch the light closely ?although? they would “smile and speak” when the light was on.Papousek concluded that it was not the sight of the lights which pleased them.It was the success they were achieving in solving the problem,in mastering the skill,and then there is a basic human nature to make sense of the world and bring it under control.?
小题1:According to the writer,babies learn to do things which _______.?

A．will satisfy their surprise	B．will meet their physical needs?
C．are directly connected to pleasure	D．will bring them a feeling of success

小题2:Papousek noticed in his studies that a baby _______.

A．would make learned responses when it saw the milk ?

B．would continue the simple movements without being given milk ?

C．would turn its head to right or left when it had enough to drink?

D．would carry out learned movements when it had enough to drink ?

小题3:In Papousek's experiment babies make learned movements of the head in order to _______.

A．be praised	B．please their parents?
C．be rewarded with milk	D．have the lights turned on ?

小题4:The babies would “smile and speak” at the lights because _______.?

A．they succeeded in “turning on” the lights?

B．the sight of lights was interesting?

C．they need not turn back to watch the lights?

D．the lights were directly connected to some basic “drives”

查看答案和解析>>

科目：高中英语 来源：不详 题型：阅读理解

Some kids can't sit still for long. They have a hard time paying attention to just one thing. They're easily distracted(分神).They can get very impatient. They hate standing in line or waiting for their turn in a game or activity. They get bored pretty fast. They may also be impulsive—saying the first thing that comes to mind or interrupting someone else who's talking.?
For certain kids, this problem is so severe(严重) that doctors have a name for it: attention deficit hyperactivity disorder, or ADHD. Perhaps as many as 1 out of every 20 kids under the age of 18 have characteristics of ADHD. Often, these kids have trouble getting through school and face other difficulties later in life.?
Rizzo started developing the Virtual Classroom in 1999.He wanted to see if he could use it as a tool for testing and treating kids who have attention disorders.?
To diagnose(诊断) ADHD, doctors typically test patients by giving them tasks that require attention. As part of one classic test, you watch letters flashed on a computer screen. Every time you see the letter “A” followed by the letter “X”,you have to press the space bar. If you're paying close attention, you'll register all the times this combination occurs. If not, you'll miss some.?
The Virtual Classroom makes these tests more efficient, Rizzo says. In one experiment, he gave a group of kids the classic “A-X” test. Instead of looking at a computer screen in a doctor's office, though, the kids wore headsets that made it look like they were taking the test in a classroom.?
“Basically what we found,”Rizzo says,“is that, in 20 minutes of testing with virtual reality,?we? replicated(复制) a finding that usually requires a couple hours of standard testing with computer screens in the psychologist's office.”?
小题1:The first paragraph mainly tells us _______.?

A．how to find a patient with ADHD?

B．the behavior of some kids with ADHD?

C．kids with ADHD cannot sit still for a long time?

D．kids with ADHD are easily distracted

小题2: Perhaps as many as _______ kids have characteristics of ADHD. ?
A. one out of every twenty kids
B. five percent kids less than 18 years old?
C. one out of twenty kids at the age of 18
D. five percent kids more than age of 18
小题3: In the experiment, patients need to press the space bar, when _______.

A．see letters A following X	B．first see A then see B?
C．see letter X and A	D．see letters A followed by X

小题4:The main idea of the last paragraph is _______.

A．in virtual classroom, we finish the test in 20 minutes?

B．the standard test with computer screen usually costs several hours?

C．the experiment is easy to do?

D．the result of the experiment

查看答案和解析>>

科目：高中英语 来源：不详 题型：阅读理解

On the afternoon of September27, 2008, Astronaut Zhai Zhigang became the first Chinese man to walk in space on Saturday, clambering（爬上,攀登） out of China's Shenzhou VII space craft in a technological feat（成就，功绩）that made the Chinese people excited.

"I'm feeling quite well. I greet the Chinese people and the people of the world," Zhai said as he climbed out of the craft at around 16:40 Beijing time, a historic achievement telecast live on CCTV. Tens of millions of Chinese viewers gathered before TV screens to watch the moment.
Chinese President Hu Jintao and other top leaders had appeared at the Beijing Aerospace Control Center to watch the live transmission of Zhai's spacewalk.
Zhai, 42, chosen by an expert team for the first "out-of-capsule activity," showed a red national flag, helped by colleague Liu Boming, who also briefly popped his head out of the capsule.
Zhai slowly made his way towards a test sample of solid lubricant（润滑剂）outside the capsule, took a sample and handed it to Liu.
Zhai safely returned inside the craft after about 20 minutes. The walk marked the highpoint of China's third manned space journey, which has received widespread media coverage.
Zhai wore a $4.4 million Chinese-made suit weighing 120-kg. Liu wore a Russian-made one and acted as an assistant.
The third crew member, Jing Haipeng, monitored the ship from inside the re-entry module. w.w
The risky maneuver is a step towards China's longer-term goal of building a space lab and then a larger space station, analysts said.
"On this flight, Chinese people's footprints will be left in space for the first time," said a commentary（评论）by the Xinhua news agency.
The astronauts went aboard on their walk after receiving a clean bill of health from doctors on the ground at mission control in Beijing, Xinhua said.
Zhai's suit has 10 layers and takes up to 15 hours to assemble and put on.
China's first manned spaceflight was in 2003. A second, two-manned flight followed in 2005. The only other countries that have sent people into space are Russia and the United States.
Shenzhou VII took off on Thursday and is due to land on the northern steppes(草原) of Inner Mongolia on Sunday.
小题1:The space walk done by the Chinese astronaut was historic because ______.

A．it was telecast live	B．there were more Chinese viewers than ever
C．it was the first space walk carried out by Chinese astronauts
D．top leaders watched the space walk

小题2: The following statements are true except ______.

A．The lubricant put outside the capsule was a test sample

B．It took Zhai Zhigang about 20 minutes to return to the craft safely

C．Many televisions and newspapers around the world reported the event

D．There is an aerospace control center in the capital

小题3:The significance of the space walk is ______.

A．that the astronaut can work outside the spacecraft

B．it marks a successful step towards China’s longer-term goal of building a space lab as well as a space station

C．it has attracted tens of millions of people to watch the walk

D．that the Chinese-made space suit can be used in space

小题4:What does the underlined word “clean” mean in the passage?

A．healthy

B．paid-off

C．not dirty

D．clear

小题5: The best title of the passage is ______.

A．First Footprints of Chinese People in Space

B．Expensive Space Suit

C．Three Successful Manned Flights by Chinese Astronauts

D．Historic Space Walk by Chinese Astronaut

查看答案和解析>>

科目：高中英语 来源：不详 题型：阅读理解

This is John Roberts reporting from Cardiff. The result of the match which finished at four this afternoon between France and Wales was a draw. Neither side scored. The Dutch referee（裁判）did not allow the one goal which France managed to kick. The reason for this was that a French player was unfortunately off side. So both teams went home disappointed with the game. They particularly admired the French forwards, who were always fast and often threatened the Welsh defense. Once it looked as if the Welsh goalkeeper was in serious trouble. He dived to his right to save a shot from the French centre forward and crashed his head against the goal post. A doctor examined him and he soon began to play again. Of course the large, friendly crowd cheered for him. Wales will certainly welcome another visit from this splendid team.
小题1:This passage is__________.

A．a piece of sports news broadcast over radio

B．a piece of sports news in a newspaper

C．an advertisement about sports

D．an essay about sports

小题2:The underlined word “draw” in this passage means ?

A．An act of pulling.

B．Taking money from a bank.

C．A state in which neither side wins.

D．Making pictures with a pencil or a pen.

小题3:Which of the following sentence is NOT TRUE according to the passage?

A．The French team is a visiting team while the Welsh team is the home team.

B．The French goalkeeper was brave and he didn’t quit the match even after he had his head seriously injured in the game.

C．People liked the French forwards for they were very active on the field.

D．A French player did kick a goal but the referee refused to admit it.

查看答案和解析>>

同步练习册答案

练习册

高中

初中

小学