Britain is set to face an increase in cold winters, with up to one-in-seven hitting the UK with longer periods of time when temperatures are below freezing, a study has suggested．The prediction was based on research that found out how low solar activity affected winter weather patterns．
However, the researchers were eager to stress that their findings did not suggest that the region was about to fall suddenly into a "little ice age"．The findings appear in the journal Environmental Research Letters．"We could get to the point where one-in-seven winters are very cold, as we had at the start of last winter and all through the winter before last," said co-author Mike Lockwood, professor of space environment physics at the University of Reading．
Using the Central England Temperature （CET） record, the world's longest instrumental data series that dates back to 1659, the team said that in general temperatures during recent winters had been obviously lower than the longer-term temperatures．"The mean CET for December, January and February for the recent relatively cold winters of 2008 ~ 2009 and 2009~2010 were 3．50℃ and 2．53℃ respectively," they wrote．"However, the mean value for the previous 20 winters had been 5．04℃．The series of lower winter temperatures in the UK during the last three years had raised questions about the probability of more similar, or even colder, winters occurring in the future．"
Last year．Professor Lockwood and colleagues published a paper that found a link between fewer sunspots and atmospheric conditions that "blocked" warm westerly winds reaching Europe during winter months, opening the way for cold easterly winds from the Arctic and Russia to sweep across the region．Professor Lockwood, while acknowledging that there were a range of possible meteorological factors （气象因素） that could influence blocking events, said the latest study moved things forward by showing that there was "improvement in the predictive skill" when solar activity was taken into consideration．
【小题1】We can know from the second paragraph that _____．

阅读下面短文，将标有A~F的段落或句子插入文章中题号为1~5的恰当位置，使全篇文章意义完整，结构连贯。注意：1)有一个选项是多余的；2)如选E请填涂AB；选F请填涂CD.

Freezing can keep food fresh and safe to eat. Freezing lowers the food temperature below zero degree Celsius. That is the point where water turns to ice.    , it is important to lower the temperature to between minus fifteen and minus twenty degrees Celsius as quickly as possible. The faster the freezing process is, the fresher the taste of the food.

Fruits and vegetables can be spread out inside the freezer. Once the food is frozen,     . Fruits are usually not cooked before they are frozen. This allows them to keep their fresh taste. The simplest way to prepare fruits is to cut them up and place them in a container inside the freeze before putting it in the container. This will keep it from sticking to the container. This is called the “dry pack” method.

    , The fruit is prepared along with some of its liquid or juice. You can ad some sugar to fruits that are naturally juicy. The sugar sweetens the fruit and brings out its natural juices.

    . Blanching means placing the vegetables in boiling water for a few minutes and then quickly placing them into very cold water. Blanching slows down the natural chemical aging process. All extra water should be removed before placing the vegetables into containers and freezing.     .

A. it should be placed in containers and then stored at a temperature of about minus twenty degrees Celsius

B. Vegetables are either cooked or blanched before freezing

C. To start the freezing process

D. To keep them fresh for a long time

E. The second way is the “wet pack” method

F. Most foods can be stored frozen for up to one year

 —Shall I turn the heating on?

—Sure, it's so cold in here. I'm          freezing.

A．rarely            B．naturally          C．merely            D．absolutely

—Shall I turn the heating on?
—Sure, it's so cold in here. I'm          freezing.

Since the beginning of history, man has been attracted by the idea of living forever, of winning the fight against death and disease. So far, this has only remained a dream. Many people have wondered whether it would be possible to find a way to preserve human bodies, and what would be the best way.

It has long been known that meat of fruit can be kept fresh for long periods by freezing; in ancient China, for example, food was stored with ice to keep it fresh. This method could also be useful for preserving humans.

However, most living beings that exist under warm conditions die when frozen. This is because of the harmful effects of freezing ice crystals(晶体), which not only are larger than the volume(体积) of the water originally in the cells, but also form sharp cutting shapes that harm the cells.

In the 1940s Dr B.J. Luyet and a group of scientists in England were working on the problem of freezing cells without damaging them. Since the harm caused by ice crystals was the main cause of damage, Luyet suggested removing some or all of the water from the cells before freezing them.

Using living cells form chicken, Luyet and his assistants discovered that they could partly dry the chicken cells, using a mixture of the white part of an egg and glycerin (丙三醇). Some success was obtained. The chicken cells were dried, frozen for a period of time, and then carefully unfrozen. Almost all the cells recovered when they reached normal temperatures.

Since then, the cooling of whole animals to a temperature far below freezing point for later unfreezing has become more of a possibility, and the glycerin method would probably be used to accomplish this. When this can be done completely and successfully, science will have moved much closer to its aim of freezing and storing incurable patients until the day they can be cured.

1.What does the passage mainly talk about?

A．Easy but practical ways to remove water from living cells.

B．The possibility of preserving human bodies by freezing.

C．The practice of preserving food by freezing.

D．The harmful effects of freezing.

2.The idea of freezing human bodies to preserve them ______________.

A．has already been realized

B．was invented in ancient China

C．has its roots in the way of storing food

D．is widely accepted by the scientific world

3.According to the text, freezing _________________.

A．is harmful to living cells

B．is the best way of preserving food

C．reduces the volume of water in living cells

D．is a way of removing water from living cells

4.What can be inferred from the last paragraph?

A．It is impossible to have whole animals frozen.

B．It remains unknown how to unfreeze frozen animals.

C．Freezing incurable patients for later treatment is still an idea.

D．The glycerin method has already been adopted to treat patients.