Can plants talk?Modem study has found something amazing:they do communicate with each other.
It has been known for some time that plants use chemicals to communicate with each other.This happens when a plant gets attacked by insects.The plant gives out chemicals from the leaves hat are being eaten.This is like a warning,or a call for help:"I'm being attacked!" When another plant gets the chemicals,it starts to give out its own,different chemicals.Some of these chemicals drive insects away.Others attract the wasps (黃蜂)!The wasps kill the insects that are eating the plants.Scientists hope to learn more about this plant warning system,so that we can use it to grow more crops.
More surprisingly,plants also use sounds to communicate.People can't hear these sounds,but plants are making them.Some plants make noises with their roots.Com and chili plants do this.Some trees make clicking noises when there is not enough water.
Most surprisingly of all,plants have an amazing system of communication that can link nearly every plant in a forest.Scientists call this system the "wood wide web".The wood wide web is linked underground by fungi (真菌).It links the roots of different plants to each other.It is in some ways similar to the Internet we use.Using the wood wide web,plants can share information and even food with each other.However,it may lead to bad effects.Plants may use it to steal food from each other,or spread chemicals to attack other plants.Perhaps one day scientists will learn how to create a "firewall" to help prevent these attacks within the wood wide web.
Scientists are learning more every day about the secret ways in which plants talk to each other.Maybe one day we will know enough about plant communication to be able to"talk" with them ourselves.
(1)What will plants do when they are attacked by insects? DD
A.They will kill the insects by themselves.
B.They will control the wasps to kill the insects.
C.They will send out signals to ask for food.
D.They will produce chemicals as a warning or a call for help.
(2)How is the wood wide web linked by fungi? CC
A.By making noises with their roots.
B.By spreading chemicals to each other.
C.By connecting the roots of different plants to each other.
D.By leading to bad effects.
(3)What is the writer's purpose of the last paragraph? AA
A.To give people hope for further studies.
B.To praise scientists for their great achievements.
C.To call on people to protect the plants on Earth.
D.To encourage people to grow more plants.
(4)Which is the best title for the passage? AA
A.The secret language of plants.
B.The plants that make sounds.
C.The study on the wood wide web.
D.The study on the wasps.
【答案】D;C;A;A
【解答】
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發(fā)布:2024/5/27 14:0:0組卷:15引用:3難度:0.7
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1.How do you feel about nature?After spending hours indoors,do you feel better when you visit your local park?I believe the answer must be "YES".
Most people think that nature is good for our bodies and brains.However,humans are spending more time inside and less time outside.For example,the number of visitors to Canada s national parks is getting smaller every year.And in countries such as the USA,only 10% of teenagers spend time outside every day.Many doctors feel that this is a problem in the twenty-first century.
Therefore,some doctors are studying the connection between nature and health:one example is the work of Dr.Matilda in Sweden.The doctor gave people a math test.During the test,their heart rates(心率) were fast.After the test,one group of people sat in a 3 D- virtual-reality(虛擬現(xiàn)實(shí)) room for fifteen minutes with pictures and sounds of nature.Their heart rates were slower than people's in the other group.The virtual touch with nature helped them feel more relaxed.The natural world allows our brains to rest and slow down,and can leave us feeling happier and less stressed.Another example from Canada also shows nature is good for health.In Toronto,researchers studied 31,000 people living in the city.In general,they found that healthier people lived near parks.
Because of studies like these,some countries and cities want people to enjoy nature in their everyday life.In Dubai,people plan to build a new shopping mall with a large garden,so shoppers can relax outside with trees,plants and water.And South Korea has new forests near its cities and around 13 million people visit these forests every year.Getting close to nature has been thought to be necessary for brain development in children.In Switzerland, "forest schools" are popular.School children study their subjects in the forests and exercise a lot outside.So after building cities for so long,perhaps it's now time to start rebuilding nature.
In a word,nature holds a special kind of energy:it is clean,wild and spirit- renewing.jye.ai makes us grow stronger.
(1)What is the purpose of Paragraph 2?
A.To raise the problem of people's lifestyle.
B.To offer some advice for people's lives.
C.To share people's ideas about nature.
D.To show people's lives in different countries.
(2)What do the results of the studies in Paragraph 3 mainly show?
A.More healthier Canadians live close to parks.
B.The math test is difficult and makes people nervous.
C.Nature can relax people and influence them positively.
D.People's heart rates increase in a 3 D virtual-reality room.
(3)To help people enjoy nature,countries do the following except
A.rebuilding nature near cities
B.having classes and doing sports in nature
C.planning a green area for shoppers
D.starting a brain development programme
(4)Which of the following sentences can be best put in the blank
A.So why not run away from the cities?
B.So nature is our best choice,isn't it?
C.So why not let nature be part of our daily life?
D.So nature is more important than cities,isn't it?發(fā)布:2025/1/5 10:0:6組卷:4引用:1難度:0.1 -
2.It's good to share,right?Growing up as kids we are told to share our toys and not be selfish.We also live in an age where discussing our feelings is encouraged.But when does it all become too much?With new fashion trending all the time,such as dance challenges and wearing a pillow as a dress,the question is:when can sharing become oversharing on social media?
What is oversharing?The term has become related to social media,but it doesn't only belong to this platform.Imagine you head to a party and you meet someone.Within five minutes they have told details about their personal life.While some of us may try to escape these people,according to marriage therapist Carolyn Cole,this form of oversharing could come from a strong desire to connect with someone.But how does this translate to social media?
Dr.Christopher Hand,a lecturer in internet psychology,says the more details people share,the less sympathy" we express when things go wrong.This could be due to a belief that we attract our own negative experiences the more we share them.It seems that sadfishing,the idea of searching for sympathy by oversharing,is generally considered as negative rather than the cry for help it could actually be.
However,Dr.Hand's research also seems to suggest that the more we post on a platform,the more socially attractive we become- if the posts are positive.Even back in 2015,Gwendolyn Seidman PhD,said that we should avoid complaining and being negative online.We should also control clear of showing off or bragging",as it's now known--especially about our love lives.It makes sense- if your date is going "that well",would you really have time to share a photo with text?
So,how can you know if you are oversharing?Well,why not ask your friends in real life.They would probably be more than happy to tell you if your posts about your breakfast or your gripes about your lack of money really are too much.
(1)The phrases "dance challenges" and "wearing a pillow as a dress" in paragraph 1 are used to prove
A.a(chǎn) dislike of oversharing
B.a(chǎn)n enthusiastic interest in oversharing
C.social media becoming free
D.oversharing being forbidden
(2)According to Carolyn Cole,why do people overshare?
A.Need to connect with people.
B.Curiosity to know others.
C.Desire to help others.
D.Ambition to succeed.
(3)What can be inferred about oversharing from paragraph 3?
A.Sadfishing is generally considered as positive.
B.We might be in danger when bad things happen.
C.People don't feel sorry as much when things are wrong.
D.Become more socially attractive no matter what happens.
(4)What is Gwendolyn Seidman's attitude towards showing off?
A.Negative.
B.Neutral.
C.Positive.
D.Indifferent.發(fā)布:2025/1/5 10:0:6組卷:1引用:1難度:0.2 -
3.We like to believe that before we make a decision,most of the time,we take time to consider all the facts carefully.However,experts believe that only 5% of our decisions are based on a rational thought process.So,what influences our decision- making process?
We often leave decision-making to our instincts".Scientists have found out that if we had the choice,we like to avoid pain rather than get somethjye.aig.In fact,we're twice as happy when we try to avoid a bad situation than when we experience a good one.This is why when companies send ads,they use phrases like "How to avoid ...","Don't miss out!",etc.
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(1)Which of the following shows the structure of the passage?
A.B.C.D.
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B.People sometimes judge a person by what he wears.
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D.Making fewer decisions helps to save brain power.
(3)What can we learn from the passage?
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(4)The purpose of the passage is to
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B.a(chǎn)dvise people to make rational decisions
C.warn people not to make risky decisions
D.show disadvantages of rational decisions發(fā)布:2025/1/5 10:0:6組卷:11引用:2難度:0.2
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