Google.the leading company in self-driving technology.has planned to have driverless cars on public roads．( )A．left outB．cut outC．dried outD．tested out．题目和参考答案——青夏教育精英家教网—

题目内容

18．Google，the leading company in self-driving technology，has planned to have driverless cars ______ on public roads．（　　）

A．

left out

B．

cut out

C．

dried out

D．

tested out．

分析谷歌，自动驾驶技术方面的领头公司，已经计划在公共道路上测试无人驾驶汽车．

解答答案D．考查动词短语．leave out漏，省去；不考虑．cut out切断；删去；停止；关掉．dry out变干；戒酒．test out彻底检验；考验．根据句意，测试无人驾驶汽车，故选D．

点评考查动词短语辨析的题，熟记短语的意思，将选项分别代入题干，结合语境进行选择．

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8．

We've used the wind as an energy source for a long time．The Babylonians and Chinese were using wind power to pump water for irrigating crops 4，000 years ago，and sailing boats were around long before that．Wind power was used in the Middle Ages，in Europe，to grind（磨碎） corn，which is where the term"windmill"comes from．
We can use the energy in the wind by building a tall tower，with a large propellor on the top．The wind blows the propellor round，which turns a generator to produce electricity．We tend to build many of these towers together，to make a"wind farm"and produce more electricity．The more towers，the more wind，and the larger the propellors，the more electricity we can make．It's only worth building wind farms in places that have strong，steady winds，although boats and caravans（大篷车）increasingly have small wind generators to help keep their batteries charged．
The best places for wind farms are in coastal areas，at the tops of rounded hills，open plains and gaps in mountains-places where the wind is strong and reliable．Some are offshore．To be worthwhile，you need an average wind speed of around 25 km/h．Most wind farms in the UK are in Cornwall or Wales．Isolated places such as farms may have their own wind generators．In California，several"wind farms"supply electricity to homes around Los Angeles．
The propellors are large，to obtain energy from the largest possible volume of air．The blades can be angled to cope with varying wind speeds．Some designs use vertical turbines（垂直涡轮机），which don't need to be turned to face the wind．The towers are tall，to get the propellors as high as possible，up to where the wind is stronger．This means that the land beneath can still be used for farming．
66．The first paragraph aims to introduce to usD．
A．the function of wind power
B．the source of wind power
C．the nations using wind power
D．the history of using wind power
67．How does a wind power work？D
A．The generator turns the propeller blades and produce electricity．
B．The tall tower helps turn the energy in the air into electricity．
C．Warm air rises and makes the propellor move round．
D．The propellor blown round by wind turns the generator to produce electricity．
68．The best places for building the wind farm are places whereD．
A．boats and caravans can often be seen
B．isolated farms don't have enough electricity
C．there are less human activities
D．the wind is strong and reliable
69．We can infer from the passage thatB．
A．wind farms will not take up too much farming land
B．wind farms need no fuel because wind is free
C．the blades can be angled to turn to face the wind wherever it comes from
D．the higher and larger the towers are，the stronger the wind is
70．What can be a suitable title for the passage？B
A．Where to build a wind farm．
B．ABC of the using of wind energy．
C．How to make best use of wind．
D．Wind energy is the best energy．

9．Computerised trading agents may help humans build better markets
THANKS to declining markets，investment banks are getting rid of many of their highly-paid traders．When markets recover，the banks might be tempted to replace them with rather cheaper talent．One alternative has been around for a while but has yet to catch on：autonomous trading agents-computers programmed to act like the human version without such annoying costs as holidays，lunch breaks or bonuses．Program trading has，of course，been done before； some blamed the 1987stock market crash on computers instructed with simple decision-making rules．But robots can be smarter than that．
Dave Cliff，a researcher at Hewlett-Packard Laboratories in Bristol，England，has been creating trading robots for seven years．In computer simulations he lets them evolve"genetically"，and so allows them to adapt and fit models of real-world financial markets．His experiments have suggested that a redesign of some markets could lead to greater efficiency．Last year，a research group at IBM showed that Mr Cliff's artificial traders could consistently beat the human variety，in various kinds of market．Nearly all take the shape of an auction（拍卖）．One well-known type is the English auction，familiar to customers of the salesrooms（拍卖场）of Christie's and Sotheby's，where sellers keep mum on their offer price，and buyers increase their bids by stages until only one remains．
At the other extreme is the Dutch auction，familiar to 17th-century tulip-traders in the Netherlands as well as to bidders for American Treasury bonds．Here，buyers remain silent，and a seller reduces his price until it is accepted．Most markets for shares，commodities，foreign exchange and derivatives are a mixture of these two types：buyers and sellers can announce their bid or offer prices at any time，and deals are constantly being closed，a so-called"continuous double auction"．
Mr Cliff's novel idea was to apply his evolutionary computer programs to marketplaces themselves．Why not，he thought，try and see what types of auction would let traders converge（趋同） most quickly towards a balance price？The results were surprising．In his models，auctions that let buyers and sellers bid at any time like most of today's financial exchanges were less efficient than ones that required relatively more bids from either buyers or sellers．These"evolved auctions"also withstood big market shocks，such as crashes and panics，better than today's real-world versions．Mr Cliff's most recent results，which will be presented in Sydney，Australia，on December 10th，show that the best type of auction for any market depends crucially on even slight differences in the number of buyers and sellers．
Bank of America has been investigating these new auctions，along with robotic traders，for possible use in electronic exchanges．The hope is that today's financial auctions and online marketplaces might work better by becoming more like their English and Dutch ancestors．

67．What is the passage mainly about？B
A．A review of two kinds of auctions．
B．An introduction of trading robots．
C．A survey of the trading market．
D．About trading alternatives．
68．Which of the following is true according to the text？C
A．Mr Cliff's robot traders have now been used in real-world markets．
B．Robot traders can evolve like creatures．
C．There is room for improvement in efficiency in trading markets．
D．The English auction is the most popular trading form．
69．What can we infer from the text？B
A．Existing auctions cannot withstand market shocks
B．The Dutch auction is better than the continuous double auction
C．It's hard for traders to reach a balanced price
D．The best type of auction takes place when the number of the buyers is equal to that of sellers
70．What's the author's attitude toward robot traders？D
A．Prejudiced B．Objective
C．Critical D．Optimistic．

6．Like all animal species，plant species must spread their offspring to suitable areas where they can grow and pass on their parents'genes．Young animals generally spread by walking or flying．Because plants don't have that ability，they must somehow hitchhike（搭车）．Some plant seeds scatter by blowing in the wind or floating on water．Many other plant species，though，trick an animal into carrying their seeds．How do they do this？They enclose the seeds within a tasty fruit and advertise the fruit's ripeness by its colour or smell．The hungry animal collects and swallows the fruit，walks or flies off，and later spits out the seeds somewhere far from its parent tree．Seeds can thereby be carried for thousands of miles．It may surprise you to learn that plant seeds can resist digestion．In fact，some seeds actually require passage through an animal's body before they can grow．
Wild strawberries offer a good example of hitchhiking tactics．When strawberry seeds are still young and not yet ready to be planted，the surrounding fruit is green，sour and hard．When the seeds finally mature，the berries turn red，sweet，and tender．The change in the berries'colour serves as a signal to birds which then eat the strawberries，fly off，and eventually spit out the seeds．
Naturally，strawberry plants didn't set out with a conscious intention of attracting birds only when their seeds were ready to be dispersed．Nor did birds set out with the intent of planting strawberries．Rather，strawberry plants evolved through natural selection．The sweeter and redder the final strawberry，the more birds spread its ripe seeds； the greener and more sour the young strawberry，the fewer birds destroyed the seeds by eating berries before the seeds were ready．
46．What does the underlined word"dispersed"in the third paragraph mean？A
A．spread
B．eaten
C．born
D．planted
47．For plants，which of the following is NOT a way of spreading their offspring to suitable areas？D
A．Hitchhiking．
B．Blowing in the wind．
C．Floating on water．
D．Tracking an animal．
48．Which strategy does the example of wild strawberries describe？D
A．The conscious intent of attracting birds．
B．Spreading by walking．
C．Spreading by flying．
D．The strategy of taking a lift．
49．Why does the author describe how strawberry seeds are spread？C
A．To show plants are good at adapting to the environment．．
B．To show strawberry's special way．
C．To show the plant has different ways of spreading seeds．
D．To show the mystery of plant．
50．What's the passage mainly about？B
A．How animals disperse offspring．
B．How plants disperse their offspring．
C．Plant evolution．
D．Plants'hitchhiking on animals．

13．Be careful what you say around your dog．It might understand more than you think．
A border collie named Rico recognizes the names of about 200objects，say researchers in Germany．The dog also appears to be able to learn new words as easily as a 3-year-old child．Its word-learning skills are as good as those of a parrot or chimpanzee（黑猩猩）．
In one experiment，the researchers took all 200items that Rico is supposed to know and divided them into 20groups of 10objects．Then the owner told the dog to go and fetch one of the items and bring it back．In four tests，Rico got 37out of 40commands right．As the dog couldn't see anyone to get clues，the scientists believe Rico must understand the meanings of certain words．
In another experiment，the scientists took one toy that Rico had never seen before and put it in a room with seven toys whose names the dog already knew．The owner then told Rico to fetch the object，using a word the dog had never heard before．
The correct object was chosen in seven out of l0tests，suggesting that the dog had worked out the answer by process of elimination（排除法）．A month later，Rico remembered half of the new names，which is even more impressive．
Rico is thought to be smarter than the average dog．For one thing，Rico is a border collie，a breed （品种）known for its mental abilities．In addition，the 9-year-old dog has been trained to fetch toys by their names since the age of nine months．
It's hard to know if all dogs understand at least some of the words we say．Even if they do，they can't talk back．Still，it wouldn't hurt to sweet-talk your dog every now and then．You might just get a big，wet kiss in return!

72．From paragraph 2we know thatC．
A．animals are as clever as human beings
B．dogs are smarter than parrots and chimpanzees
C．chimpanzees have good word-learning skills
D．dogs have similar learning abilities as 3-year-old children
73．Both experiments show thatB．
A．Rico is smart enough to get all commands right
B．Rico can recognize different things including toys
C．Rico has developed the ability of learning mathematics
D．Rico won't forget the names of objects once recognizing them
74．Which of the following statements is true？B
A．The purpose of the experiments is to show the border collie's mental abilities．
B．Rico has a better memory partly because of its proper early training．
C．The border collie is world-famous for recognizing objects．
D．Rico is born to understand its owner's commands．
75．What does the writer want to tell us in the last paragraph？D
A．To train your dog．
B．To talk to your dog．
C．To be friendly to your dog．
D．To be careful with your dog．

10．Miss Green is popular with her students as she always tries to make them _________ in her classes．（　　）

7．Melissa，__________ the alarm clock for 6o'clock，or you will oversleep and be late for the train．（　　）

8．We're living in people call"Information Age"，so everything is possible．（　　）

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