People born in the autumn live longer than those born in the spring and are less likely to fall ill when they are older, according to an Austrian scientist. Using census(人口统计) data for more than one million people in Austria, Denmark and Australia, __36__ at the Max Planck Institute for Demographic Research in the northern German town of Rostock found the month of birth was _37__ to life expectancy（平均寿命）over the age of 50. __38__ differences in what mothers ate during pregnancy（怀孕）, and __39__ occurring at different times of the year could both have an _40_ on the health of a new-born baby and could __41__ its life expectancy in older age. "A mother giving birth in spring spends the _42_ phase (阶段)of her pregnancy in winter, when she will eat less vitamins than in summer," said Gabriele Doblhammer, one of a team of scientists who _43_ the research. "When she stops breast-feeding and starts giving her baby __44__ food, it’s in the hot weeks of summer when babies are likely to be exposed to infections of the digestive system（消化系统）." In Austria, adults born in autumn (October-December) lived about seven months _45__ than those born in spring (April-June), and in Denmark adults with birthdays in autumn outlived those born in spring by about four months. In the southern hemisphere（半球）, the picture was __46_. Adults born in the Australian autumn - the European ___47__ - lived about four months longer than those born in the Australian spring. The study __48__ people born at the beginning of the 20th century, using death certificates（证书）and census data. Although ___49__ at all times of the year has improved since then, the seasonal pattern _50__, Doblhammer said.

The weather is closely related(联系) to our life．It is all around us all the time．It is an important part of our lives．We cannot control it, but it often controls how and   (1)  we live, what we do, what we wear and what we eat．Read this passage and learn  (2)  about the weather．

What is the weather？The weather is just the state of the atmosphere   (3)  any time, such as temperature, wind,  (4)  , sun, etc．What makes the weather change？

As we know, not every place on the earth gets the same amount of sunlight．Some places get  (5)  sunlight．So it’s warmer in those places．Some places get little  (6)  no sunlight in winter．Then those places have colder temperatures．These differences in temperature make the air and water    (7)  around the earth．The movement helps to take the heat energy from the sun across the earth．So the   (8)   changes．

What’s the difference between weather and climate？

Climate is a place’s weather over a long time．The weather changes from day to day and  (9)  from hour to hour．It can be sunny in the morning, cold and wet in the afternoon．But the climate changes very   (10)  over lots of years．

On an airplane as she was flying across the United States, Dr. Jane Goodall noticed a woman sitting next to her. She asked the woman why she looked so    36   , and the woman said she was absolutely exhausted because she’d been up at two in the morning trying to   37    the water.

    Her young daughter was in an environmental group at school and her daughter’s passion had turned to making sure her    38    was eco-friendly. They were staying at the woman’s brother’s house the night    39    her rip, and in the middle of the night her daughter woke up to the    40    of a dripping faucet(水龙头). The daughter asked for    41    turning it off as the faucet handle was    42   . The only way to    43    the leak(裂缝) was to dig to the pipe in the front grass to find the main valve(阀) to turn the water off, and her daughter wouldn’t go to sleep    44    the leak stopped. So at two in the morning    45    in the family was out in the yard helping to    46    to turn off the water.

    Young people have much more    47    to initiate(开始，发起) and accomplish change than what    48    may believe. When children make a change in their lives, families are    49    along to become environmentally friendly.

    The story also shows that small actions can have a big effect. We   50    think about    51    events like Clean and Green Week. Instead, a lot of small changes can make a(n)    52   . If hundreds or thousands of students    53    their families to turn off the faucet to save water, move the air conditioning temperature    54    a degree or two in summer, drive less and make other environmentally-friendly changes, the    55    family may change its behaviors.   

One of the most remarkable things about the human mind is our ability to imagine the future. In our   (1)   we can see what has not yet happened．For example, while we are looking forward to visiting a new place or country, we   (2)   what it will be like. We predict the   (3)  people will eat, dress and act. Of course, we do not always predict things correctly. Things are often very different from the way we   (4)   them to be.

  One of the   (5)   dreams in history is the dream of the German scientist, Kekule, who had been   (6)   to work out a very difficult problem in physics. He had   (7)    and analyzed the problem from every angle for days, but there seemed to be no way of   (8)    out the answer. Then one night he went to bed and dreamed．When he   (9)    up, he realized that he knew the answer. He had solved the problem in his   (10)   .

  The hypnotist(催眠者) sat in the chair opposite him and spoke    (11)   : I want you to concentrate on my voice. Think about nothing. You know nothing but my voice. And as you pay attention to my voice, your   (12)   will get heavier. Soon you’ll be asleep.

  You will hear my voice and   (13)    my words, but your body will be asleep, your eyes are too heavy. You are almost asleep, and when you wake up you will    (14)    nothing.

  You will forget everything. Now I am going to   (15)    slowly from one to five. One, two, three, four, five.

China’s giant pandas show the achievements of the international effort to save animals that are now in danger. In television programs we often see pandas     (1)     funny games. Children have panda toys and beautiful cards with pictures of lovely     (2)    in them. They often visit the giant pandas in the zoo on     (3)    holidays and have a good time there. However, scientists are worried about the     (4)     of giant pandas. They know only about 1,000 giant pandas remain     (5)     today. They think the giant pandas will die out in 30 years if the present conditions are not    (6)    .

It is reported that the giant pandas have a very     (7)     birthrate. About 115 pandas live in the zoo and research centers mainly in China, but during the past 10 years they     (8)    only 34    (9)     pandas that are still alive. Survival rate for giant pandas in the wild are probably the same or lower.

There are several reasons for the low     (10)    . The main reason is     (11)     male pandas can mate(交配) with females in a very     (12)     season--- only a few days a year. When they do have babies, females often produce two pandas, but the mother is usually not able to take care of    (13)     of them. The newborn pandas     (14)     only a few kilograms each. They are too weak to live without special care. In the zoo, scientists can help the mothers     (15)     for the young pandas, but those living in the wild do not get enough     (16)    . It is very difficult for mother pandas to bring up their young pandas.

Conditions for the giant pandas have been worse in recent years. Pandas in China continue to     (17)     in number. We know pandas live on bamboos. But sometimes all the bamboos in one area die. The pandas there have     (18)     to eat and die of hunger.

Giant pandas now live in 13 separate     (19)    areas in China. Several years ago the Chinese government and the International Wildlife Organization agreed     (20)     a project of protecting giant pandas in the wild. We hope it could be useful.

Sustainable development is applied to just about everything from energy to clean water and economic growth, and as a result it has become difficult to question either the basic assumptions behind it or the way the concept is put to use. This is especially __36__ in agriculture, where sustainable development is often taken __37__ the only measure of progress without a proper appreciation of historical and cultural perspectives.

To start with, it is important to remember that the __38__ of agriculture has changed greatly throughout history, and will __39__ to do so. Medieval（中世纪的）agriculture in northern Europe fed, clothed and sheltered a mainly rural society with a much __40__ population density(密度) than it is today. It had minimal __41__ on biodiversity, and any pollution it caused was typically localized. In __42__ of energy use and the nutrients captured in the product it was __43__ inefficient.

What’s more, demand for animal products in developing countries is growing so fast that __44__ it will require an extra 300 million tons of grain a year by 2050. Yet the growth of cities and industry is reducing the amount of water __45__ for agriculture in many regions.

All this means that __46__ in the 21^st century will have to be very different from __47__ it was in the 20th. This will require radical thinking. For example, we need to move away from the idea that traditional   __48__ are inevitably more sustainable than new ones. We also need to __49__ the idea that agriculture can be “zero impact”. The key will be to abandon the rather simple and static measures of sustainability, which    __50__ the need to maintain production without increasing __51__.

Instead we need a more flexible interpretation, __52__ that looks at the pros and cons of all the various way land is used. There are many different ways to measure agricultural performance besides food production: energy use, environmental costs, water purity, carbon footprint and biodiversity. It is clear, for example, __53__ the carbon of transporting tomatoes from Spain to the UK is less than that of producing them in the UK with additional heating and lighting. But we do not know __54__ lower carbon footprints will always be better for biodiversity.

What is crucial is recognizing that __55__ agriculture is not just about sustainable food production.

The Internet has changed our life in many ways. It provides us with a lot of   (1)  information. In the past, people would go to one or two stores  (2)   they bought something. But now, they can   (3)   the same things in different stores easily online. This way of   (4)   can save them a lot of money.   (5)   ,last month, I was in the market for a   (6)  . I went to a couple of stores and thought they were a bit   (7)  . Later, after checking some websites, I   (8)   that I was right. I actually ended up getting the   (9)  computer that I saw in the store; to my  (10)   ,it was three hundred dollars cheaper. Because of my   (11)   to compare prices online, I saved a large amount of money. This would have been   (12)  before the Internet became widespread.

Also, the Internet has a wealth of quick facts and information for   (13)   .When I was at school, I would have to   (14)   from a limited number of books in my school library. But,   (15)   the Internet, young people can now get information on almost anything they can   (16)  .Besides, the Internet saves them time while they are   (17)   their papers as well as when they are   (18)   writing them. Overall, the Internet is a useful tool for   (19)  information. It is   (20)   that anyone can find what they want with the help of the Internet.

We all need a healthy environment.   41  , we produce waste every day and it     42  harm to our environment. Though we are young, we can still do 43  to help. In fact, even the simplest everyday activities can make a real   44  to the environment. Here are some ideas for you to live a 45  life.

Remember these three   46 : reduce, reuse and recycle.

Reduce means “use less”. Don't   47 things. This saves money and reduces pollution and waste going into the environment. Before we buy something new, think if it is really   48  or maybe the   49 one will be just as good! When we do buy things, choose local products if possible, and try not to buy too many things from a   50    country.

Reuse means “use again”. Use things for   51  possible. When we buy things, make sure that they   52  a long time. We should take care of them   53  they will last, and we should   54  them if we can instead of throwing them away and buying new ones. Don't use a paper cup or a paper bag. It’s better to use a china cup and a lunch box because you can use them   55  .

Recycle means “change things into something else”. Although it  56  energy to change something into something else, it’s better than   57   things or burning them. Find out   58  can be recycled in your neighborhood and take part in recycling programs. We should also buy  59   made from recycled materials, such as recycled paper, to help save   60  .