當前位置：人教新版八年級下冊《Unit 5 What were you doing when the rainstorm came》2019年單元測試卷（1）> 試題詳情

Soon computers and other machines will be able to remember you by looking at your eyes!The programme works because everyone's eyes are different．So in the future you won't have to remember a number when you want to use a machine or take money out of a bank．You'll just have to look at the machine and it will be able to tell who you are．
   The eye-recognition（識別）programme is already being tested in shops and banks in the USA，Britain，Spain，Italy and Turkey．Soon，this technology will take the place of all other ways of finding out who people are．
   However，scientists are working on other systems．Machines will soon be able to know you from the shape of your face or hand or even your smell!We already have machines that can tell who you are from your voice or the mark made by your finger．
   Eye-recognition is better than other kinds because your eyes don't change as you get older，or get dirty like hands or fingers．And even twins have different eyes，so the programme can be up to 94% correct，depending on how good the technology is．Some programmes may only be right 51% of the time．In Britain，it was found that 91% of people who had tried it said that they liked the idea of eye-recognition．In the future your computer will be looking at you in the eye．So smile!

（1）Where has the eye-recognition program already been tested in a few countries？In
A
A
．
A．shops and banks
B．shops and schools
C．banks and schools
D．schools and hospitals
（2）How does the eye-recognition programme work？
C
C

A．You write your number．
B．You show your ID card．
C．You look at the machine．
D．You say your name．
（3）Why can the programme be up to 94% correct？
A
A

A．Because eyes never change．
B．Because hands or fingers can get dirty．
C．Because people like the idea of the programme．
D．Because the programme is widely used around the world
（4）Which of the following is true？
B
B

A．The programme is being tested in Japan．
B．Machines with other systems can also tell who you are．
C．91% of people like the idea of the programme．
D．Computers can remember you by looking at your clothes．
（5）What does this passage mainly talk about？
B
B

A．Introduction to some kinds of programmes．
B．Introduction to the eye-recognition programme．
C．The way how the eye-recognition programme works．
D．The places where the eye-recognition programme is tested．

【考點】科普知識；細節(jié)理解；主旨大意．

【答案】A；C；A；B；B

【解答】

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發(fā)布：2024/6/27 10:35:59組卷：159引用：2難度：0.4

相似題

1．Have you ever had chocolate chip cookies？In fact，this favorite food was invented by（1）

.One day in 1930，a woman （2）

（call）Ruth Wakefield was making chocolate cookies.She ran out of chocolate powder.So she divided a piece of chocolate into little pieces.Then she added all of （3）

（they）to the dough（面團） that the chocolate would melt（融化）.However，the pieces of chocolate still （4）

（remain）hard.When Ruth took them out of the oven，she invented chocolate chip cookies.Soon chocolate chip cookies became popular （5）

people around the world.
發(fā)布：2024/10/6 17:0:2組卷：83引用：3難度：0.1
解析
2．Height is just one of the thousands of features your genes （基因） decide．In fact，because you have two parents，your genes provide you a height that usually lands somewhere between the height of each parent．If both your parents are tall，then most probably you will be tall，too．If you have questions about how tall you're going to be，ask your doctor if he or she can help you find it out．
But genes don't decide everything．For example，eating an unhealthy diet can keep you from
growing to your full potential（潛力）．Getting plenty of sleep and enough exercise will help you grow to the expected height．
No doubt you're wondering how fast you should grow．It depends．There's no perfect or right answer，Generally speaking，kids grow about two inches（six centimeters） a year between age three and the time when they start puberty．
Your doctor will know how your growth has been going over the years．Two centimeters here and two inches there are not nearly as important as the height you're at now，how you've been growing up to this point，and what other changes your body may be going through．
Don't be nervous if you seem to have grown a lot in a very short time．Everyone has a growth spurt （高峰） during puberty．The age for starting puberty is about 10 for girls and about 11 for boys．But it can be earlier or later，between 7 and 13 for girls and 9 and 15 for boys．
You'll usually begin to notice that you're growing faster about a year or so after your body starts to show the first changes of puberty．

根據(jù)短文內容，選擇最佳答案，并在答題卡上按要求作答．
（1）The underlined word"puberty"means

in Chinese．
A．童年時期
B．嬰幼兒時期
C．習慣養(yǎng)成期
D．生長發(fā)育期
（2）If you want to know how tall you shall grow，

．
A．you should have enough exercise
B．you can ask your doctor for help
C．you should have a healthy diet
D．yon can record your growth during puberty
（3）After reading this passage，we can learn

．
A．how good it is to be a doctor
B．how much sleep time we need
C．why genes can't decide everything
D．what is a healthy diet for children
（4）Which is NOT mentioned in the passage？

A．Your height most probably depends on how tall your parents are．
B．Girls' age for starting puberty is usually earlier than boys'．
C．The time showing the first changes of puberty is never noticed．
D．You may be nervous sometimes when you grow too fast．
（5）This passage is mainly about

．
A．how the genes work in your body
B．"the times at which you grow the most
C．how you grow during your puberty，
D．how you grow to a certain height．
發(fā)布：2024/11/10 15:0:1組卷：431引用：4難度：0.5
解析
3．Can anyone be an astronaut？
   Of course not.You don't have to have a science degree but most astronauts do.Most of them are pilots too.Life in a spaceship is hard so you must have a healthy body and mind.You need to be easy-going，patient，and helpful to spend so much time in a small space with other people.
   What's the training like？
   People have to train for a year to learn how to stay healthy and safe.They practise space walking and living in zero gravity（重力）.They train in difficult conditions to learn how to solve problems and to work in a team.Everyday tasks like eating，washing and sleeping can be difficult on a spaceship.There is no running water so you have to wash with wet tissues：it's hard to enjoy the dry food that astronauts have to eat.And to sleep you must cover your eyes because the sun rises every 90 minutes on the International Space Station.You also have to tie yourself to something so you don't fly away!
   What health problems do astronauts have？
   Life in zero gravity causes changes to our bodies.Bones and muscles（肌肉）become thin and weak so you must do a lot of exercise in space to stay fit and to help the heart move blood around your body.Astronauts often get backache because you grow in space— up to 8 centimeters!It's also common to have headaches and to feel sick，especially at the beginning.You must have vitamins to take the place of fresh fruit and vegetables.But you don't have to put on sun cream because space suits can protect your skin （皮膚）.
   Are you still interested？
（1）What is a must for an astronaut？

A．A science degree.
B．A pilot's license.
C．A healthy body and mind.
D．A weak character.
（2）What must you do to prepare for a space trip？

A．Experience zero gravity.
B．Wash with running water.
C．Practise long walks.
D．Sleep with your eyes open.
（3）Why do astronauts have to exercise in space？

A．To make their bones and muscles thinner.
B．To help the heart work well and keep fit.
C．To avoid backache and grow much taller.
D．To stop their skins from getting sunburned.
（4）What is the text maily about？

A．What we need to know to become an astronaut.
B．Why young people are interested in space trips？
C．What problems astronauts must solve in space.
D．Why we need to train hard before a space trip.
發(fā)布：2024/10/14 8:0:4組卷：13引用：2難度：0.5
解析

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