19.Two men were sitting together in a plane.They were on a long journey.One of the men was a businessman.The other was a farmer.They sat without talking for a while,then the farmer said,"Let's do something to pass the time."
"What do you want to do?"the businessman asked."We can ask each other riddles."The farmer said,"you star.""Let's make the rules first,"the businessman said."That's not fair.Your are a businessman with much knowledge.You know more things than I do.I am just a farmer."
"That's true."The businessman said."What do you want we should do?""If you don't know the answer to a riddle,you pay me﹩100.And if I don't know the answer,I'll pay you﹩50."The farmer said.The businessman thought about this,then he said,"OK.That's fair.Who will go first?"
"I will,"The farmer said."Here is my riddle.What has three legs when it walks,but only two legs when it flies?"The business man repeated the riddle,"What has three legs when it walks,but only two legs when it flies?Mm,that's a good one.I'm afraid I don't know the answer."He gave the farmer﹩100,then said,"Tell me  the answer.What has three legs when it walks,but only two legs when it flies?""I don't know."The farmer said and gave him﹩50.

32.The story happenedD.
A.on a farm
B.n a shop
C.before a long plane journey
D.between two passengers
33.What does the word"riddle"mean in this story?A
A.A difficult question to find the answer to
B.Something to help to make rules
C.Something to win money
D.a kind of game in doing business
34.Why did the businessman agree to give more money if he lost?B
A He made much more money than the farmer
B.He thought he knew more than the farmer
C.He was interested in making riddles
D.He was better at laying riddle games
35.The farmerD.
A.enjoyed himself on his long journey
B.didn't want to pay even one dollar
C.spent all his money on the plane ticket
D.won fifty dollars by playing the riddle game.
18.In an effort to discourage people from using plastics,scientists have been hard at work inventing alternative packaging products.
The idea of using seaweed(海草) to make eco-friendly water bottles has been around for a few years.Recently,Ari Jonsson took his invention-a water bottle made from red seaweed-to show off at a festival.The bottles will only hold their shape as long 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 Jonsson's 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 the 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 product that may take up t0 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 at home,possibly a science project for children or just fun with friends.Why not experiment and create your own recipes?
 
28.Why do scientists invent alternative packaging products?D
A.To make people's life more convenient.
B.To show off their inventive talents.
C.To change the way we picnic outside.
D.To reduce the amount of plastic waste.
29.What makes Art Jonsson's water bottles eco-friendly?D
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.
30.What do Ari and Narayana's inventions have in common?B
A.They 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.
31.What can be inferred from this passage?A
A.Home-made eatable cutlery is likely to be popular.
B.Eatable cutlery will completely replace plastics in the near future.
C.No recycling companies can break down plastic waste.
D.It's unsafe for individuals to invent eatable cutlery at home.
17.Yuoki,a restaurant in Germany,is not your everyday all-you-can-eat buffet (自助餐).For starters,there isn't an actual buffet to fill your plate.Instead,customers are seated at a table and provided with iPads which they can use to order up to five small dishes every ten minutes.They can eat as much as they want for 120 minutes,but having the food served at short intervals (间隔)allows diners to constantly assess how hungry they are and order accordingly,preventing food waste.Also,the owner,Luan Guoyu,believes,"our eyes are bigger than our stomach",so not being able to see the cooked food at the buffet prevents people from ordering more food than they can actually eat.
But Luan Guoyu's most effective way of fighting food waste,and the one that has attracted media attention,is his?1 ($1.15)fine for food still left on the plate."It's called‘all-you-can-eat'"he says,adding that the extra charge is not meant to increase his income,but to act as a warning against wasting food.
    Luan Guoyu's system is unique in the state of Baden-Wurttemberg,but not in Germany.Okinii,a Japanese-style restaurant in Dusseldorf,has also been charging customer,the same?1 tax for unfinished food on their plates since 2013.
With so many people living on the edge of their nations,and food waste becoming a serious problem in developed countries,it will be interesting to see if more restaurants will start carrying out the"eat up or pay up"policy.Even if they give the money from this fine to charity,it would still help them to save money in dealing with waste,so it's a win for everyone.
 
21.What does the underlined word"assess"in Paragraph 1 probably mean?C
A.Doubt.B.Realize.
C.Judge.D.Compare.
22.What will Luan Guoyu do when people can't finish the food on their plates?A
A.He will charge them extra money.
B.He will advise them to eat up the food.
C.He will ask them to take the food away.
D.He will warn them to order less food next time.
23.What is the text mainly about?D
A.Various German restaurants.
B.The seriousness of food waste.
C.Secrets of managing a restaurant.
D.Special ways to fight food waste.
24.What does the author think of the"eat up or pay up"policy?C
A.Unfair.
B.Funny.
C.Reasonable.
D.Doubtful.
15.According to U.S.research,you can add seven and a half years to your life just by being happy!
Supporting this claim is Laurie Hayes,Life Strategy Coach from Ontario,Canada,who has been working with people who have recognized this missing element in their lives and want to take corrective action towards a more meaningful,balanced existence.
"Some people believe that by earning more money,working longer hours,and taking on more and more responsibility,they will somehow reap big benefits that will in the end guarantee happiness.Unfortunately that just isn't the case,and research has now proven that the more comfortable life becomes,the more discontented and unfulfilled we become."
Incredibly,professional men and women polled in a recent study were rated to be unhappiest of all.Most attributed work pressures,the need to achieve,family responsibilities,social pressures,and busy lifestyles.Ms.Hayes says people often wait so long to do anything about these feelings that by the time they come to her they are out of order,overwhelmed,feeling heavy and isolated,and that it's only through supportive,strategic life coaching they are able to learn how to live,laugh,and dream again.
Coaching used to be intended for toplevel executives,movie stars and large corporations,but is now being sought after by average,everyday people seeking positive life change.Already mainstream in the U.S.,it is still relatively new in Canada."I know personally what it's like to live without real happiness.I experienced it years ago,learned a valuable lesson and now I want to do my bit to help others realize that they too can find happiness."Thankfully,real happiness is attainable and doesn't have to come at the expense of something else.As a matter of fact,the source might be so close to us that we can't even see it!The secret of extended life might be right under our noses,only waiting to be discovered!

13."The secret of extended life might be right under our noses,only waiting to be discovered!"meansA.
A.real happiness is attainable and doesn't have to come at the expense of something else
B.real happiness is very important,but we all miss it
C.extended life is easy to gain for life strategy coach,such as Ms.Hayes
D.you can add seven and a half years to your life just by being happy
14.The underlined word"existence"can be replaced byC.
A.pursuit  B.happiness  C.life  D.coaching
15.The passage mainly tells us thatC.
A.you can add exact seven and a half years to your life just by being happy
B.professional men and women were rated to be unhappiest of all
C.extended life is easy to gain,just be happy
D.extended life comes at the expense of something else.
14.Rice plants normally grow well in till water.But most will die if they are completely underwater for more than four days.Now,researchers have identified a gene(基因)that helps rice survive longer underwater.They say the discovery will lead to new kinds of rice plants that can survive flooding,and therefore reach their final aim,ensuring more dependable food supplies.
Tests are now being done in Laos,Bangladesh and India.The researchers say experimental rice plants with the gene have survived underwater as long as two weeks.When flooding happens,most kinds of rice plants cannot get enough oxygen,carbon dioxide or sunlight.But the scientists say crop loss depends on several conditions.These include soil condiions and plant age.Others include the amount of time the plant is underwater and the amount of fertilizer(肥料)used on the crop.
On a genetic(遗传的)map of rice,the scientists became interested in a group of three genes.They experimented with one of them,a gene known as Sub-One-A.They found that when this gene becomes very active,it improves the ability of rice to survive longer when rice is covered by water.They believe it succeeds because it affects the reaction to hormones(荷尔蒙).They control the ability of a flooded plant to survive.Placing the gene into rice plants that are especially good for conditions in India,researchers say the genetically engineered plants not only survived but also produced good crops.
The researchers are now trying to identify all the genes governed by the Sub-One-A gene.Being able to leave water on rice plants for an additional week might also help farmers prevent the growth of weeds.Less weed growth around their crops would mean less need for herbicide(除草剂)chemicals.

5.Crop loss depends on all the following conditions EXCEPTB.
A.soil conditions and plant age
B.the amount of water the plant stands in
C.the amount of fertilizer used on the crop
D.the amount of time the plant is underwater
6.What is the final aim of this research?D
A.To identify the gene that helps rice survive underwater.
B.To increase the ability of rice to fight against floods.
C.To help farmers spend less time removing weeds.
D.To make sure of enough food supplies.
7.What does the underlined word"They"in Paragrph 3 refer to?D
A.Genes.B.The experiments.C.Genetically engineered plants.D.Hormones.
8.What would be the best title for the passage?C
A.Rice research is going on in Laos and India
B.How to reduce the influence of floods on rice
C.Gene researchers work on flood-resistant rice
D.A great discovery in the agricultural field.
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