Picky eaters are ___unwilling to try new food...

Picky eaters are ___unwilling to try new foods, which experts think, can be the result of your DNA and your upbringing.

A. vaguely　　 B. typically　　 C. literally　　 D. smartly

高三英语单项填空简单题查看答案及解析

New Holland honeyeaters are experts at sounding the alarm when there's danger, according to new research from biologists at the Australian National University(ANU)and the University of Cambridge.

Study authors, Dr. Jessica McLachlan and Professor Rob Magrath, found honeyeaters can spread the word in the blink of an eye, using a two-stage alarm.

It's particularly effective when they are threatened by fast-moving birds of prey.

＂When a hawk is swooping down, its target has only a second to flee to cover-a split second can make the difference between life and death," Dr. McLachlan said.

＂But animals often signal urgent danger using repeated notes, which makes sure others hear the warning but it takes a long time to deliver."

＂So there's a problem. How to send a lightning-fast message in a long call?”

New Holland honeyeaters solve this problem elegantly. They "front-load" information about urgency into the first note of their alarm call, so other honeyeaters can respond quickly.

The clever honeyeaters follow this up with more notes to reinforce the message and signal how long to remain hidden.

＂They use a long call, with lots of notes, to make sure the message is heard," Professor Magrath said." And the more notes, the more urgent the danger."

＂But they also modify the first note to indicate if it's necessary to take immediate cover. So it's a two-part message that is quick, reliable and informative."

The technique is so effective the authors expect to see other species adopt it.

＂Many other species modify alarm calls as the threat increases, but there is surprisingly little known about how fast they convey the message," Professor Magrath said.

The researchers conducted their study in Canberra's National Botanic Gardens over a period of several years.

＂These birds live in the Gardens and are used to having people around. This helped us to record natural interactions with their predators(捕猎者)，such as sparrow hawks and currawongs, and to video the honeyeaters' responses to different alarm calls," Professor Magrath said.

1.According to Dr. Jessica McLachlan,______

A.speed counts when it comes to honeyeaters' life or death

B.the second-part message in a honeyeater's call is more reliable

C.the message about where to take cover is conveyed very fast

D.the urgency degree relies on the first note in a honeyeater's call

2.What does"they"in Paragraph 12 refer to?

A.alarm calls B.modified notes

C.other species D.clever honeyeaters

3.The researchers' findings are mainly based on

A.the comparison between honeyeaters and other birds

B.the analysis of length of alarm calls made by honeyeaters

C.the record of the honeyeaters' response and signal transmission

D.the observation of birds in Canberra's National Botanic Gardens

高三英语阅读理解中等难度题查看答案及解析

Women are meant to be the experts at shopping, but new research reveals the whole experience leaves them stressed. The surprise findings show that not all women get comfort from shopping.　 In fact, in a supermarket environment, one third of females feel it a burden when they do the weekly shop despite being organized and armed with shopping lists, The reason why women are more nervous in the supermarket is largely that they are rushing round trying to conduct the shopping as quickly as possible. Doing the food shop will be one item on a massive list of jobs，and something which simply has to be done at speed.　 Women even admitted to having an argument with another shopper in the supermarket－either because of trolley rage, fighting over the same item or queue jumping. They can't stand feeling rushed when the cashier scans items too quickly so they struggle to get everything into the right bags.

In contrast, three quarters of men quite enjoy their food shopping experience and are happy to push their way around the aisles searching out products. Men are less forgetful about what they want to buy, are less likely to feel rushed by the cashiers and are more methodical at the checkouts. Men seem to adopt a much more laid back and methodical approach, taking their time looking for bargains and make sure they're getting the most for their money.

But the poll suggests women are the savvier shoppers—as they are less baffled by all the different brands in the shop and are more likely to ask for help if needed.

高三英语其他题中等难度题查看答案及解析

Can you imagine printing food? Some scientists are trying to revolutionize the dining experience by doing this. They hope that having a 3D printer in the kitchen will become as commonplace as the microwave. Scientists say that they are easy to use: you simply have to select a recipe and put the raw food "inks" into the printer. You can also change the instructions to make the food exactly how you want it. This means that it would be very quick and easy to create tasty and nutritious meals.

They say that if people used 3D printers to create meals there would be less need for traditional growing, transporting and packaging processes as food production would be a lot easier. For example, alternative ingredients (原料) such as proteins from insects could be changed into tasty products. And as is known, those traditional activities are not beneficial to our surroundings.

This technology could also help people who suffer from dysphagia (a swallowing disorder). The patients could program the printer and softer versions would be made so that they would not have trouble swallowing them.

However, some people think that using 3D-printed foods would be a disaster. It could take away many jobs, including those for growing, transporting and packaging food. Imagine a world where there was no need for farming or growing crops and the same tastes could be printed from a raw "food ink". Likewise, traditional cafes and restaurants might lose business. Also, there are concerns about the nutritional value of printed food: is it really possible to get the nutrients we need from food-based inks?

What's more, cooking and eating together with family and friends has long been a traditional and enjoyable activity. It is hard to imagine a world where the pastime of cooking is dead and meals can be created at the touch of a button.

1.What do scientists think of 3D food printing?

A. It is cheap to use it.　　 B. It is environment-friendly.

C. It is advancing quickly.　　 D. It needs improving.

2.What does the underlined part in Paragraph 3 refer to?

A. The printed foods.　　 B. Their favorite foods.

C. The more nutritious foods.　　 D. The more tasty foods.

3.What can we infer about the printed foods from Paragraph 4?

A. Their raw "food inks" are more nutritional.

B. People would get more jobs produced by them.

C. People need more evidence about their nutrition.

D. They would be bought in traditional restaurants.

4.What is the best title for the text?

A. The growth of 3D food printing　　 B. The future of 3D food printing

C. The 3D food printing business　　 D. The two sides of 3D food printing

高三英语阅读理解中等难度题查看答案及解析

The people below are all trying to choose which TV programme to watch.  After the description of these people, there is information about six TV programmes A-F. Decide which programme would be most suitable for the person mentioned in questions 1-5 and then mark the correct letter (A-F) on your answer sheet. There is one extra paragraph about one programme which you do not need to use.

__________1.Although Rob lead a quiet life in a small village, that doesn’t stop him from wanting to find out about the latest scientific development.

__________2.Bella enjoys eating out but can’t afford to spend very much at the moment as she is saving for a holiday. She has never learnt how to cook, so now might be quite a good time to find out！

____________3. Dan is interested in taking wildlife photographs and enjoys the kind of programme which gives him a chance to see a professional photographer at work.

_____________4. Gina is a music teacher. Although she prefers  classical music, she likes to follow the kind of music that interests the teenagers she teaches.

____________5.Ron’s wife is in hospital. He wants to finds a programme suitable for his three-year-old son while he gets on with the housework and prepares a meal.

TODAYS  TELEVISION  PROGRAMME  PREVIEW

A.TV1 7:20 p.m. Find out more about Australia’s animal life. This film was made last year by one of Australia’s best-known cameramen,  Dougie Bond. He spent over 200 hours filming the birds, animals and fish that inhabit this beautiful continent and for the first time brings some of these unusual animals to our TV screens.

B.TV3 9:00p.m. The popular science programme is back with the latest in technology and medicine. This week, cars that run on sunlight and the story of one baby’s fight to live.

C.TV2 8:10p.m. Do you think what goes into the food most of us eat every day of the week? Tonight’s programme takes a serious scientific look at the bread industry. Whether you bake your own bread or just enjoy buying it, this programme will give you an interesting insight into something most of us eat every day of the week.

D.TV1  5:15p.m. Busy parents? Bored children? Do you want something educational to entertain your children while you do something else? This popular magazine programme is for the under-fives. More music, fun, songs and games with Carla and Larry.

E.TV3  8:45p.m. If you’ve always wanted to cook, now’s your chance to learn. In the studio are two chefs who will take you through some simple recipes step by step. This is a repeat of the popular series shown last year, and available from good bookshops.

F.TV3   7:40p.m. The latest new music. Pete Hogg looks at the best of the current rap, raga and new jack swing plus new video releases. This is the programme that tells you all about what’s happening on the music scene and brings you interviews with tomorrow’s young artists.

高三英语信息匹配简单题查看答案及解析

Across countryside, non-food crops are growing alongside wheat．Some are used in new alternatives to plastics and other materials, but others will simply be burned．

Burning crops is becoming more popular because it is good for the planet．Doing so is also cheaper than burning fossil fuels．As more land is devoted to non-food crop production, the economics of crops for fuel are likely to become even more favorable．

Humans have been burning such biomass—organic materials from plants or animals— since they discovered fire．But that burning fossil fuels could have catastrophic consequences has brought biomass back into fashion．

Even allowing for emissions (排放) of carbon dioxide from fuel used in planting, harvesting, processing and transporting biomass fuel, replacing fossil fuel with biomass can typically reduce greenhouse gas emissions by more than 90 percent．

Power stations around the world are experimenting with forms of biomass to add to their coal or oil, with encouraging results．Indeed, power companies could profit by turning to biomass, especially when the subsidies (补助) many governments offer for using renewable energy are taken into account．

Farmers can benefit from growing biomass．In Europe, the reduction of subsidies for certain crops is exposing farmers to market forces．Instead of being paid for whatever they produce, farmers must seek a clear demand for their product．Many believe that the demand for alternatives to fossil fuels could be just such a driver．

But while biomass offers a variety of potential alternatives, the world's infrastructure (基础设施） has developed around burning fossil fuels to such a stage that switching to biomass involves a change in conception that many companies have not accepted．

Also, there are problems with using biomass．Although most coal-fired power stations could take a small amount of their fuel from biomass without significant adjustment, few are built to run on biomass alone．Burning some forms of biomass also causes environmental problems．Oils and waste can be smelly, while wood produces smoke unless burned properly．

The supply chains for fossil fuels are set up well, but those for biomass are just the beginning. Sources of supply for biomass rely on farm production and can therefore be less reliable. They are necessarily limited and it wouldn't make sense to turn a very large amount of valuable agricultural land away from food crops．But as the world adjusts to the need to control greenhouse gas emissions, these problems may receive more attention．

1.What do we know about biomass?

A．It is a useful way of burning crops．

B．It is plant and animal matter used to provide power．

C．It is a new alternative to be used widely．

D．It is a popular approach to fighting against pollution．

2.What are the advantages of using biomass?

a．It gives off less greenhouse gases．

b．It helps farmers receive subsidies for what they produce．

c．It has met the clear demand for energy．

d．It has brought subsidies for some power companies．

e．It is cheaper than burning fossil fuels．

A．a, b, c            B．b, c, d            C．c, d, e            D．a, d, e

3.For coal-fired power stations, ______．

A．more effective ways to use biomass have been tried

B．using renewable energy has become their daily task

C．burning biomass alone would require considerable changes

D．setting up dependable supply channels needs governments' support

4.What is the author's attitude towards biomass fuels?

A．Defensive．       B．Doubtful．        C．Negative．        D．Objective

高三英语阅读理解中等难度题查看答案及解析

It is meeting________side effect the new medicine will bring about, although the experts have tried it on about 2,000 patients.

A．that                    B．what                   C．whether               D．which

高三英语单项填空简单题查看答案及解析

Which place are the speakers trying to find?

A.A hotel. B.A bank. C.A restaurant.

高三英语短对话简单题查看答案及解析

Are you looking for some new and exciting places to take your kids (孩子) to? Try some of these places:

l Visit art museums. They offer a variety of activities to excite your kids' interest. Many offer workshops for making land-made pieces, traveling exhibits, book signings by children's favorite writer, and even musical performances and other arts.

l Head to a natural history museum. This is where kids can discover the past from dinosaur(恐龙) models to rock collections and pictures of stars in the sky. Also, ask what kind of workshops and educational programs are prepared for kids and any special events that are coming up.

l Go to a Youtheater. Look for one in your area offering plays for child and family visitors. Pre-show play shops are conducted by area artists and educators where kids can discover the secret about performing arts. Puppet(木偶)making and stage make-up are just a couple of the special offerings you might find.

l Try hands-on science. Visit one of the many hands-on science museums around the country. These science play-lands are great fun for kids and grown-ups alike. They'll keep your child mentally and physically active the whole day through while pushing buttons, experimenting, and building. When everyone is tired, enjoy a fun family science show, commonly found in these museums.

1.If a child is interested in the universe, he probably will visit         .

A．a Youtheater                           B．an art museum

C．a natural history museum                 D．a hands-on science museum

2.What can kids do at a Youtheater?

A．Look at rock collections.                  B．See dinosaur models.

C．Watch puppet making.                   D．Give performances.

3.What does "hands-on science" mean in the last paragraph?

A．Science games designed by kids.            B．Learning science by doing things.

C．A show of kids' science work.              D．Reading science books.

4.Where does this text probably come from?

A．A science textbook.                     B．A tourist map.

C．A museum guide.                       D．A news report.

高三英语阅读理解中等难度题查看答案及解析

Are you looking for some new and exciting places to take your kids to? Try some of these places:

Visit art museums. They offer a variety of activities to excite your kids’ interest. Many offer workshops for making hand-made pieces, traveling exhibits, book signings (签名) by children’s favorite writers, and even musical performances and other arts.

Head to a natural history museum. This is where kids can discover the past from dinosaur models to rock collections and pictures of stars in the sky. Also, ask what kind of workshops and educational programs are prepared for kids and any special events that are coming up.

Go to a Youtheater. Look for one in your area offering plays for child and family visitors. Pre-show play shops are conducted by area artists and educators where kids can discover the secret about performing arts. Puppet (木偶) making and stage make-up are just a couple of the special offerings you might find.

Try hands-on science. Visit one of the many hands-on science museums around the country. These science play-lands are great fun for kids and grown-ups alike. They’ll keep your child mentally and physically active the whole day through while pushing buttons, experimenting, and building. When everyone is tired, enjoy a fun family science show, commonly found in these museums.

1.If a child is interested in the universe, he probably will visit

A. a Youtheater　　　　　　 　 B. an art museum

C. a natural history museum D. a hands-on science museum

2.What can kids do at a Youtheater?

A. Look at rock collections.　 B. See dinosaur models.

C. Watch puppet making.　　 　 D. Give performances.

3.What does "hands-on science" mean in the last paragraph?

A. Science games designed by kids.

B. Learning science by doing things.

C. A show of kids' science work.

D. Reading science books.

4.Where does this text probably come from?

A. A science textbook.　　 B. A tourist map.

C. A museum guide.　　　 　 D. A news report.

高三英语阅读理解中等难度题查看答案及解析