初中英语科普知识类阅读阅读填空

What is the future of AI（人工智能）？Will it be a good thing？ We asked students what they think．

	I believe AI will be more useful in our future lives． It's now used in many fields， like phones and medicine． No one really knows what will happen if machines become smarter than humans． However， I'm sure AI will help us solve many problems．
	I am worried that people create something that can be better than themselves． In the near future， AI will develop at a high speed． Humans may be replaced because Al robots will do lots of human jobs．
	I really think that AI will change the way we work， the way we live，and the way we think． Imagine if we could put a CPU inside our brain! Soon we'll be able to improve our math and memory． How exciting！
	Think of what's happening right now． Some robots are used to kill animals under human orders． So I think Al will be very dangerous for humans． We need to be careful about what we ask machines to do．

（1）John thinks that AI will be 　　in the future．

A．	exciting
B．	surprising
C．	helpful
D．	dangerous

（2）What does Tina think of AI？ 　　

A．	It will be a danger to the world
B．	It will develop at a high speed．
C．	It will help us solve many problems．
D．	It will change the way we work．

（3）Bill thinks humans may be replaced because 　　．

A．	we can't improve our memory
B．	AI robots will do human jobs
C．	we can put CPU in our brains
D．	AI can help to improve our math．

（4）Who feels excited about the development of AI in the future？ 　　

A．	Mary
B．	Bill
C．	John
D．	Tina

Remember books？ The paper kind．With pages．In the old days before computers，to get information，people read books and newspapers．Students spent hours and hours in the library，looking for information in the old books for homework． Now students can find anything on the internet in seconds．The library was a place where everyone was quiet． Sing along to music？Never! Watch a movie on phone while they are reading？ Impossible! But now students can watch videos about their research topic as they write a paper．

Before computers， articles were handwritten． If a student made a mistake， he would throw the paper away and start writing all over again． Now？ If a student makes a mistake， he can just remove or cut it． Students type on their computers and edit （编辑） freely． But they should save their writing in time on the computer because it may stop working suddenly． Who wants to lose his hard work forever？

Communication online is easy and fun． While students are writing ， they can discuss with friends in another window ．Did you think they were chatting （聊天） with someone in the real same room？ No! They're chatting with everyone in their own room．

Technology helps us get important information in no time．In areas where bad weather is a problem，we can get warnings from our phone． Our local radio or TV station can give information about where to get help or what to do to keep our family and home safe．

Technology is our friend!

（1）题完成句子；（2）、（3）题简略回答问题；（4）题找出并写下第四段的主题句；（5）题将文中画线句子译成汉语．

（1）In the old days before computers， people 　　to get information．

（2）How can a student correct his mistake while writing on the computer？ 　　

（3）Why should students save their writing in time on the computer？ 　　

（4） 　　

（5） 　　

Why are dogs our best friends．Maybe because they can understand our words much better than we thought，according to a study in Hungary．It found that dogs understand not only what we say，but also how we say it．

"The results were very exciting and very surprising．"Said the researcher Attila Andies，from Eotvos Lorand University in Budapest．

For the study，the researchers first trained 13 dogs for months．The dogs had to sit quietly inside machine，so that the researchers could check their activity．

Then the researcher put headphones on dogs and played people's voice to them．There were four different voice．Some were positive words，such as"well down"，or neutral（不带感情色彩的） words like"however"．The words were also in different tones（音调）．Some were positive and some were neutral．

Brain scans（扫描）showed that the dogs could recognize（辨认）words．as well as the tone of words，much like people do．The positive words with a positive tone brought the stronger activity in their brain's reward centers（反应中枢）．

"It shows that for dogs，a nice phrase can word very well as a prize，but it words best if both words and tones match．"Said Andies．

They also found that dogs deal with meaningful words with the left side of the brain and tones with the right．Human brains work in the same way．

It gave us a new understanding of language，said Andies．That is，not only do humans understand the meaning in words，other species（物种） do too．

根据短文内容，选择最佳选项，并在答题卡上将选定的答案字母标号涂黑．

36．What was found according to the study in Hungary？ 　　

A．	Dogs can't understand people words．
B．	Dogs can only understand what we say．
C．	Dogs can understand what we thought better than our words．
D．	Dogs understand not only what we say，but also how we say it．

37．Which of the following is NOT mentioned in the study？ 　　

A．	Researchers played with the dogs．
B．	Researchers made dogs sit inside machine．
C．	Researchers scanned the dogs'brain．
D．	Researchers played people's voice to the dogs．

38．Dogs think 　　as a best prize．

A．	neutral words with a neutral tone．
B．	neutral words with a positive tone．
C．	positive words with neutral tone
D．	positive words with positive tone

39．According to the passage，which of the following is TRUE？ 　　

A．	Human brains don't work in the same way as dogs do．
B．	Dogs deal with meaningful words with the left side of the brain．
C．	The researchers trained dogs for years to check their brain activity．
D．	Researcher Attila Andies was disappointed at the result of the study．

40．What is the main idea of the passage？ 　　

A．	Dogs are as clever as humans．
B．	Dogs are good at learning human's language．
C．	Dogs can understand the meaning in words．
D．	Dogs can do what human do．

Do you know why different animals or insects have their special colors？Colors in them seem to be used mainly to protect themselves．

Some birds like eating locusts（蝗虫），but birds can't easily catch them．Why？It is because locusts change their colors together with the change of the colors of crops．When crops are green，locusts look green．But as the harvest time comes，locusts change to the same brown color as crops have．Some other insects with different colors from plants are easily found and eaten by others，so they have to hide themselves for lives and appear only at night．

If you study the animal life，you will find the main use of coloring is to protect themselves．Bears，lions and other animals move quickly through the forest．They cannot be easily seen by hunters．This is because they have the colors much like the trees．

Have you ever noticed an even more strange fact？A kind of fish in the sea can send out a kind of very black liquid（液体）when it faces danger．While the liquid spreads over，its enemies cannot find it．And it immediately swims away．So it has lived up to now though it is not strong at all．

根据短文内容，选择最佳选项，将其标号在答题卡上涂黑．

（1）What are the special colors of different animals or insects used for？ 　　

A．	Showing their beauty．
B．	Finding themselves．
C．	Protecting themselves．
D．	Seeing others．

（2）In the harvest time，what is the color of the locusts？ 　　

A．	Green．
B．	Brown．
C．	Yellow．
D．	Red．

（3）When do other insects with different colors from plants come out？ 　　

A．	At night．
B．	In the afternoon．
C．	At noon．
D．	In the morning．

（4）Can hunters easily see the bears or lions in the forest？ 　　

A．	I don'tknow．
B．	I am not sure yet．
C．	No，they can't．
D．	Yes，they can．

阅读短文，从各题所给的选项中，选择最佳选项．

Imagine the situation．You are driving along a desert or on a mountain．Then your car breaks down．You have no idea where you are．What should we do？Well，next time take a GPS with you．It is a device（设备） which uses satellites to find the user's position．It can find your position within 20meters．A GPS cannot start your car，but at least you will know where you are．

GPS，which means Global Positioning System，is a small radio receiver．It looks like a mobile phone．You can hold it in your hand，or put it in your pocket．It is sometimes put into a watch or a telephone．We also find GPS devices in cars，planes，or boats．Some of these devices have electronic maps，so you know where you are．For example，in a city they can tell you the name of the street．

There are three parts to the Global Positioning System．The first part is the receiver．You can hold it in your hand，or have it fixed into your car，plane，etc．The second part is a group of satellites orbiting（绕） the Earth．The receiver contacts（联络） at least four of the satellites and calculates（计算） its position．The third part of the system is a net work of ground stations．They are all over the world．They control the satellites and make sure theyare working well．

Some people think that in the future the GPS will be as common as the mobile．They are becoming cheaper and more and more accurate（精确的）．There are also new uses for the GPS．Perhaps they will become like watches．Everyone will have one and you will never be lost again．

66．According to the passage，with the help of the GPS，people 　　．

A．	can't be lost in a new city
B．	can't find their way in different countries
C．	can learn about the culture of an unknown place
D．	can find their position within 2000kilometers

67．We can learn from the passage that 　　．

A．	there are three parts to the GPS
B．	a GPS can't be put into the watch
C．	a GPS can help you start your car
D．	the GPS devices are becoming more and more expensive

68．The underlined word" they"in paragraph 3means" 　　"．

A．	receivers
B．	GPS devices
C．	a network of ground stations
D．	satellites

69．The passage is mainly about 　．

A．	the history of the GPS
B．	the introduction of the GPS
C．	the shape of the GPS
D．	the price of the GPS

70．what can we infer（推断） from the passage？ 　　

A．	All GPS devices have electronic maps．
B．	People all over the world use the GPS for free．
C．	The receiver of the GPS contacts at least five of the satellites．
D．	The GPS will become more and more common in everyday life．

People have been using the wind energy for a long， long time． More than 5，000 years ago， ancient Egyptians made boats powered by the wind． In 200 B．C．， people used windmills （风车） in China．

    Today， we collect the wind's energy with wind turbines （涡轮）． A turbine is similar to a windmill；it is a very tall tower with two or three blades （叶片） at the top． These blades are turned by the wind．The blades turn a generator （发电机） located inside the tower， which creates power．

    Groups of wind turbines are known as wind farms． Wind farms can be found near farmland，in narrow mountain passes， and even in the ocean， where there are stronger winds．Wind farms create power for nearby homes， schools and other buildings．

    In places like the Midwest and along coasts， winds can provide cheap power． Another great advantage of wind power is that it is a clean form of energy． Wind turbines do not burn oil or coal and do not pollute the air．

    Wind is not always an ideal source of energy， however． Wind speed changes from time to time， depending on the time of day， weather and location． Wind turbines can be also dangerous for bats and birds．These animals cannot always tell how fast the blades are moving and crash into them．

                                                   Title： （1）　　Energy

Ancient times	People in Egypt made wind﹣powered boats（2）　　5，000 years ago． People in China used windmills in 200 B．C．
Modern times	It is（3）　　with turbines， which are tall windmill﹣like towers with two or three blades at the top and a generator inside． The wind turns the blades and the blades tum the generator to create power．
Advantages	Winds produce power at a low（4）　　 in certain areas． Wind turbines do not cause air pollution．
Disadvantages	Wind speed does not remain at the same（5）　　all the time． Wind turbines can be dangerous for animals like bats and birds．

because；       say；       happy；      one；      for

Music helps us exercise﹣but why does it have this effect？Experts say there are two main reasons．The（1）　　 is simple：music takes our attention away．When we listen to a song we like，our brains focus on the music．For example，after we exercise（2）　　20 minutes，our body might be tired．But we may not feel this immediately（3）　　we are listening to music．So we can exercise a little longer．

    Music also makes us want to move． When we hear dance music， for example， we naturally start to move to the beat． A positive song also puts us in a good mood， so we feel much（4）　　．This gives us energy and helps us exercise longer． Music with a quick and continuing beat is good for exercising． "But the music shouldn't be too fast，"（5）　　Dr. Costas， a famous sports expert． In general， songs in the range of 120﹣140 beats per minute （BPM） are the best．

On March 31 ^st，2019，a wildfire in Liangshan Yi Autonomous Prefecture（凉山彝族自治州）led to 3l deaths，including 27 firefighters．And on May 1 ^st，2016，in Alberta，Canada，a wildfire destroyed an area of nearly 700 square miles． More than 88，000 people had to leave their homes and thousands of homes were destroyed．

Wildfires are unexpected，unplanned．And the cause of most wildfires is unsure．To burn，wildfires require the right conditions﹣fuel，oxygen and heat． And global warming is one of the most important reasons．The high temperatures and dry conditions make the fire spread quickly．

In many parts of the world，wildfires happen naturally． They are started by lighting（闪电）or some other special weather conditions．In recent years，there have been more wildfires because of dry，hot weather，and changeable weather patterns because of global warming．

However，many fires are started by people． Sometimes，people clear land for farming． Besides，there are smokers who accidentally set fires．

Wildfires can cause a lot of smoke，which will pollute the air． Lots of lives，property（财产）and valuable forests will soon disappear in wildfires． When trees are burnt down ， and heavy rain follows ， more disasters such as terrible floods will happen．

Wildfires
Events	•31 lives lost in the wildfire in Liangshan Yi Autonomous Prefecture． •The wildfire in Canada （1） 　　thousands of homes．
（2）	•By nature： 1．Lighting or some other special weather conditions． 2．Global warming （3） 　　to high temperatures and dry conditions． •By people： 1．People clear the land for farming． 2．Smokers set fires by （4） 　　．
Influence	•Wildfires can cause a lot of air （5） 　　． •Lives， property and valuable forests disappear． •More disasters will happen．

There are long rivers， and there are famous rivers．The Nile is the world's longest and most famous river． It runs 6， 650 kilometers． Crocodiles and hippos live in its waters． Pyramids built by ancient Egyptians rise along its banks．

The main branch of the Nile， the White Nile， starts just above Lake Victoria， the world's second largest fresh ﹣ water lake， in east central Africa． Then it flows to the north． At Sudan's capital， another great river called the Blue Nile joins the White Nile． Together， they form one very powerful river． Then it goes through Egypt's famous Nile Valley before reaching the Mediterranean Sea．

Ancient Egypt， the first great African civilization（文明）， started along the banks of the Nile more than 5，000 years ago． Ancient Egypt ruled the Nile Valley for thousands of years． Great pyramids and temples were built on the banks and we can still visit them today．

Without the rich farmland along the banks of Nile， there might be no ancient Egypt civilization．Every year， the Nile flooded its banks． The floodwaters covered the banks with a rich soil． The Nile's banks were easy to farm and produce crops．

The Nile also made a perfect highway for boats． The river runs north， but the wind on the river blows south． To go south， boaters put up sail to catch the wind． TO go north， they took the sails down． Ancient people traded along the river for hundreds of miles．

阅读短文，填表格，每空一词．

The Nile ﹣ the longest and most famous river in the world
Where does the Nile flow？	The White Nile is the main branch of the Nile． It starts above Lake Victoria and then （1）　_____　to the north． The Blue Nile joins the White Nile at the （2） 　______　 of Sudan． They form a powerful river． Then the Nile goes through the Nile Valley． Finally it（3） 　　the Mediterranean Sea．
The Nile's long and rich banks．	Ancient Egypt started along the banks of the Nile more than 5，000 years ago． Its people built pyramids and temples we can still visit today． Every year the Nile flooded its banks． The floodwaters covered the banks with a rich soil． Rich farmland（4） 　　this ancient civilization great． The Nile made a perfect highway for boats． To go south， boaters put up sails to catch the wind． To go north， they took the sails down． Ancient people （5） 　　and sold goods along the river for hundreds of miles．

Smart wristband（智能手环）， a new welcoming product， is changing our lifestyle． （1） 　　And there are also many different bands to choose， such as Apple or Huawei．

Here are the reasons why people choose a wristband．

（2） 　　The wristband can also to be connected to the mobile phone． You are able to use it to answer the phone，but a traditional watch can never do that．

Beside， the smart wristband looks fascinating． （3） 　　．

Thirdly， at present， many people have realized the importance of health． Some people play sports every day to keep healthy． （4） 　　The wristband shows the results every day and you'll know whether you achieve your aim or not． However， some parents are still against using it．They think the teenagers are under the radiation（辐射）all the time．

Each coin has two sides． Use it or not， it's up to you．

A．It's very popular among teenagers because it's cool enough． B． In their opinion， wearing wristbands for a long time may cause cancer（癌症）． C． More and more people prefer to choose a smart wristband in their daily life． D． It's helpful to know how far they have run or how many steps the have got with a wristband． E．Fist of all， it can tell the time like a normal watch．

B

You Can Make a Windsock（风筒）Have you ever seen a windsock blowing in the wind？Well，you can make one of your own!This is a fun project that you can do with things you may

have．You just need to follow a few easy steps．

You will need：

●one piece of heavy colored paper

●five ribbons

●strong tape

●a string

●a pencil

What to do：

    Step 1：Draw pictures on the paper．You can write your name on it．Do anything that will make it

                 special to you．

    Step 2：Make the paper into the shape of a tube．Hold one of the shorter edges（边缘） over the

                 other．Then make them together with the tape at each end and in the middle．

    Step 3：Use a pencil to make a hole into both sides of the tube．The holes should be only on one end

                 of the tube．Pull the string through both holes．Then tie the ends of the string together．

    Step 4：Now make five holes around the top of the other end of the tube．Put a ribbon through each

                 of the holes．Tie a knot in the ends．Make sure the knots are bigger than the holes．

Now your windsock is ready to use，but how does it work？The shape of the tube plays an important part．Wind blows through the tube and makes it fly and dance around．Hold the windsock up in the air by its string and run around．It will fly behind you．You can also hang it outside and watch it dance around

on its own!

（1）You draw pictures on the paper to make the windsock 　　．

A．	fun
B．	heavy
C．	strong
D．	special

（2）Which of these things do you need for Step 2？ 　　

A．	Tape．
B．	Ribbons．
C．	A pencil．
D．	A string．

（3）What do you do after you put ribbons through the holes in the tube？ 　　

A．	Make holes in the tube．
B．	Tape the tube together．
C．	Tie knots in the ribbons．
D．	Put a string through the hole．

（4）What is probably the most important to make a windsock work？ 　　

A．	Its shape．
B．	Its size．
C．	The color of the paper．
D．	The number of the holes．

（5）What is the main purpose of this article？ 　　

A．	To tell an interesting story．
B．	To explain how to do something．
C．	To teach an important lesson．
D．	To show what a windsock is like．