2021版高考英语大一轮复习 Unit 2 Cloning练习 新人教版选修8.doc

1、Unit 2Cloning.阅读(2019山西临汾第一中学高三模拟)In an effort to discourage people from using plastics,scientists have been hard at work inventing alternative packaging products.From water bottles made from seaweed to cutlery(餐具) made from rice and wheat,a number of inventions are set to change the way we eat whil

2、e we are on the go,or having a relaxing picnic in the park.The idea of using seaweed to make eco-friendly water bottles has been around for a few years.Recently,Ari Jonsson took his inventiona water bottle made from red seaweedto show off at a festival.The bottles will only hold their shape as long

3、as they are filled.As soon as these bottles are empty they will begin to break down,though they would be perfectly safe to eat.Ari Jonssons bottles are a step closer to a widely used alternative to the current plastic ones.The eatable water container is not the only product to add to our image of th

4、e future.Narayana Pessapaty has also created eatable spoons.After the success of his spoons,Mr.Pessapaty is ready to expand and introduce forks and chopsticks to his menu.His aim is to largely reduce the amount of plastic waste,which is a huge problem for waste sites all over the world.It is a produ

5、ct that may take up to 500 years to break down,and recycling companies worldwide are struggling to deal with it.Aside from the obvious benefits to the environment,this new packaging is also cheap to produce and therefore cheap to buy.Even better is the fact that similar eatable cutlery can be made a

6、t home,possibly a science project for children or just fun with friends.Why not experiment and create your own recipes?1.Why do scientists invent alternative packaging products?A.To make peoples life more convenient.B.To show off their inventive talents.C.To change the way we picnic outside.D.To red

7、uce the amount of plastic waste.2.What makes Ari Jonssons water bottles eco-friendly?A.They can be made at home.B.They are cheap to produce and buy.C.They will hold their shape when they are filled.D.They will break down themselves when empty.3.What do Ari and Narayanas inventions have in common?A.T

8、hey are convenient to carry. B.They are safe to eat.C.They can be used for a short time.D.They are heavier than plastics.4.What can be inferred from this passage?A.Home-made eatable cutlery is likely to be popular.B.Eatable cutlery will completely replace plastics in the near future.C.No recycling c

9、ompanies can break down plastic waste.D.Its unsafe for individuals to invent eatable cutlery at home.语篇解读:本文是一篇说明文。文章介绍可以吃的环保餐具。这些家用食用餐具很可能是受欢迎的。答案及剖析:1.D细节理解题。根据第一段第一句“In an effort to discourage people from using plastics,scientists have been hard at work inventing alternative packaging products.”可

10、知科学家发明可替代的包装产品是为了减少塑料废品。故选D。2.D细节理解题。根据第二段第四句“As soon as these bottles are empty they will begin to break down,though they would be perfectly safe to eat.”可知Ari Jonsson的水瓶空的时候自动毁掉,所以他的水瓶是环保的。故选D。3.B细节理解题。根据第二段第四句后半句“though they would be perfectly safe to eat.”再根据第三段二、三句“Narayana Pessapaty has also c

11、reated eatable spoons.to his menu.”可知他们发明的共同点就是能安全地吃。故选B。4.A推理判断题。根据最后一段第二句“Even better is the fact that similar eatable cutlery can be made at home,possibly a science project for children or just fun with friends.”可知国产食用餐具很可能是受欢迎的。故选A。.七选五(2019宁夏石嘴山第三中学高三模拟)How to Stay Focused in a Noisy WorldBlock

12、 out time for uninterrupted work.Make sure you schedule important time for yourself where you can focus on your tasks in uninterrupted silence.1. Think of this as scheduling a meeting with yourself and treat it the same as you would when scheduling a meeting with others.Turn technology from a distra

13、ction into a useful tool.2. However,there are also some really cool apps that encourage you to be more productive and less distracted by your phone.Forrest is an app that rewards you each time you focus well,motivating you in a fun way and encourages you to leave your phone well alone.Schedule a dis

14、traction time.Just as important as scheduling focus time is scheduling distraction time.3. More specifically,the most productive employees spent 52 minutes working followed by a 17-minute break each time.This is down to the brains ability to stay motivatedit just cant sustain(维持)long periods of focu

15、s and concentration.Practice mindfulness.Mindfulness trains your mind to identify thoughts that arise throughout your day.Mindfulness practice can be done at any time.4. When reading,really take in every word or while out walking notice how your body feels and the details of your surroundings.Doing

16、this on a regular basis will eventually train your mind when it comes to other areas where distracting thoughts pop up like a work task.Exercise regularly.Not only is exercise good for the body but its also good for the brain.Physical exercise fires up the neurons in the brain making you more willin

17、g to concentrate.5.A.Its difficult to focus on your work.B.We need to get rid of distractions around us.C.These days,many people feel controlled by their phones.D.A study found that regular breaks was the key to productivity.E.When you eat your food,notice the taste and how it looks and feels.F.Let

18、people know that you wont respond unless its absolutely necessary.G.This means it increases your ability to ignore distractions and get on with the task at hand.答案:1-5FCDEG.完形填空I feel that I was blessed by an Angel not long ago.I was out in town with my husband.We live in a 1 town.Because of the col

19、d,my 2 shrunk,causing my anniversary ring to 3.I didnt notice this until we got home.I became physically ill ached all over.I thought my husband was going to have a heart attack.Although it is a material item,it is yet very 4.He went out and retraced our 5 to where we came back.I called the stores w

20、e were in and no one turned it in.I thought it was 6 for sure.Well,at around midnight last night,our dogs went mad.We have a sunroom 7 to our home.The door to that is usually 8.But that night,we left it unlocked.My all-terrain motor scooter(小型摩托车)was 9 out there.In its basket was a ring boxholding m

21、y ring!Along with the ring was a diamond circle.There was also a note that told the story of this stranger 10 the ring and recognizing the work,as it is a piece made particularly.The person then went to the jeweler and 11 about finding the ring.The jeweler is a friend of mine so she gave her my name

22、 and the town is so small,we are 12 to find.The stranger who found the ring 13 the ribbon(丝线)in the store in order to keep the ring around the finger when it is 14 out.And then also left a gift card for us to take our family out to the movies as a Christmas gift.The note was signed “Santas Elf(小精灵)”

23、.My friend is keeping her lips 15 about whom it was.1.A.modern B.small C.big D.developed2.A.ring B.hand C.brain D.finger3.A.fall offB.leave behindC.break downD.go away4.A.valuableB.challengingC.memorable D.beneficial5.A.footprintsB.steps C.streets D.directions6.A.gone B.stolen C.changed D.transforme

24、d7.A.adapted B.attached C.exposed D.held8.A.open B.abandoned C.closed D.locked9.A.made B.parked C.repaired D.destroyed10.A.handlingB.exploring C.finding D.chasing11.A.explainedB.complainedC.wondered D.argued12.A.difficultB.easy C.incredibleD.complex13.A.purchasedB.tore C.sold D.borrowed14.A.warm B.r

25、ainy C.foggy D.cold15.A.tight B.painted C.secret D.clear语篇解读:这是一篇记叙文。作者不小心弄丢了戒指,捡到戒指的好心人找到了戒指的主人也就是作者,将戒指放在她的车里并附上了一个纸条写着找寻戒指主人的经过。答案及剖析:1.B根据最后一段的“the town is so small”可知作者所在的城镇很小(small),故选B。2.D根据后文可知作者的周年纪念戒指丢了,戒指是戴在手指(finger)的,因为寒冷,手指收缩了戒指才会掉,故选D。3.A因为寒冷,戒指从手指上脱落了,A项符合逻辑,故选A项。4.C根据前文I didnt notic

26、e this until we got home.I became physically ill ached all over.I thought my husband was going to have a heart attack.可知作者夫妇知道戒指不见之后,反应很大,说明这枚戒指应该是很有意义的,故选C项。5.B作者的丈夫又出去,沿着他们之前的步子(step)寻找戒指,选B。6.A根据前文“I called the stores we were in and no one turned it in.”可知作者给去过的商店打电话,但是没人返还戒指。这时候作者认为她的戒指没了(was go

27、ne),选A。7.B作者家里有一间附属于(attached to)房子的日光浴室,选B。8.D根据后文“But that night,we left it unlocked.”可知那天晚上,作者没锁日光浴室的门。作者平常都会把门锁上(lock),但是那天晚上没锁。故选D。9.B根据句意,小摩托车停放(parked)在日光浴室,而不是被修理(repaired),破坏(destroyed)或者制作(made)。故选B项。10.C这位好心人发现了(finding)作者的戒指,故选C。11.A此处表示好心人对找到戒指作出解释。故选A。12.B根据前文“the town is so small,”可知城镇很小,所以找到作者一家很容易。选B。13.A根据in the store可知那人是在商店里,肯定是购买(purchased)丝线,故选A。14.D根据前文“Because of the cold”可知现在天气很冷,故选D项。15.A根据前文可知那人将自己称为圣诞老人的小精灵,说明他不想让作者知道自己是谁。所以作者的朋友紧紧(tight)地闭着嘴,不告诉作者那个人到底是谁。选A。