當前位置：人教新版八年級上冊《Unit8單元檢測卷》2023年單元測試卷> 試題詳情

Can plants eat people？Probably not，but there are many plants that eat meat.Some of them are big，and they can eat small animals.One famous meat-eating plant is the Venus flytrap（捕蠅草）.
The Venus flytrap is a very strange plant.It grows in dry parts of the United States.Its leaves are like the pages of a book，they can open and close very quickly.Inside the leaves，there are three small hairs.If a fly touches one of the hairs，the leaves will close quickly.The fly cannot get out.In about half an hour.the leaves press the fly until it is dead.Then，the plant covers the fly.Slowly，the plant eats the fly.
Why do plants do it？Most plants get what they need from the sun，the air and the ground.In some places，the ground is very poor.It doesn't have all these important things，but animal meat has a lot of these important things.So some plants eat meat to get what they need.Let's hope that some of the bigger plants don't get the same idea！

（1）What is the Venus flytrap？
C
C

A．It is a small animal
B．It is a fly
C．It is a plant
D．It is meat
（2）The Venus flytrap grows in
C
C
.
A．most parts of the world
B．some parts of Africa
C．dry parts of the United States
D．wet parts of England
（3）What will happen if a fly touches one of the hairs in the Venus flytraps leaves？
A
A

A．The leaves will close very fast.
B．The leaves will eat the fly.
C．The leaves will kill the fly.
D．The leaves will play with the fly.
（4）Most of the plants get what they need from
D
D
.
A．the sun
B．the air
C．the ground
D．a(chǎn)ll of the above
（5）-Why do some plants eat animal meat？
-Because
C
C
.
A．plants are dangerous to animals
B．a(chǎn)nimals are dangerous to plants
C．plants want to get what they need from animal meat
D．plants want to protect themselves against animals

【考點】科普知識；細節(jié)理解．

【答案】C；C；A；D；C

【解答】

【點評】

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發(fā)布：2024/10/4 5:0:1組卷：53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．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
3．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(nèi)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

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