民居与自然环境关系密切．下列四种民居中，位于全年寒冷地区的是（　　）

课外阅读。

加 了 一 句

    一天中午,在巴黎的街头,一位法国著名诗人看见一个老妇人木然地站着。她佝(ɡōu)偻(lóu)着腰,衣衫褴(lán)褛(lǚ),苍白的头发在风中飘荡。在她身旁,立着一块木牌,上面写着:“我什么也看不见!”这是一位双目失明的老人,因为生活所迫,不得不在街上乞(qǐ)讨。诗人走到老人跟前,俯下身子问道:“老人家,今天给你钱的人多吗?”听到有人询问,老人先是一愣(lènɡ),接着长叹一声,说:“我……今天什么也没有得到。”诗人听了,拿出笔,悄悄地在木牌的那行字前面写了一句话:“春天到了。”他把身上带的钱全给了老人。   

    晚上,这位诗人又经过这条街。他看到来往的行人经过这块木牌时,大都停了下来。无论是衣着华丽的绅(shēn)士、贵妇,还是打扮得漂漂亮亮的少男少女,都掏出一枚(méi)铜币,送到老人的手里,就连衣着寒酸的小职员,也摸出一枚铜币交给老人。诗人远远地看着,脸上露出欣慰的神情。

    “春天到了,我什么也看不见!”诗人仅(jǐn)在原来那句话的前面加了四个字,竟产生了这么大的魔力!是啊,春天多么美好。但是,对于双目失明的人来说,仍然是一片漆黑。何况这是一位贫困交加、风烛残年的老妇人呢!诗人加的一句话,用美好衬托出不幸的人更加不幸。这位盲妇人,一生连万紫千红的春天都看不到,谁能不对她产生同情之心呢!

    Scientists have always believed that snails are not able to find their way home. But Briton Ruth Brooks, a retired teacher, has found that it is not true.

    Brooks began an experiment on snails after she got mad with the snails in her garden.

    The snails had eaten her vegetables. She didn't want to kill them, so she took them to another place. But she found they always seemed to come back.

    Brooks did an experiment. She marked the snails in her garden with nail polish(指甲油).

    She placed the snails in the area around her home and made notes of their movements.

    She found that snails have a strong homing instinct (本能); the longest returning snail traveled back 90 meters. Brooks has been named Britain's best amateur (业余的) scientist after her work won the BBC Radio 4 project, So You Want To Be A Scientist.

    She said, "I've always wanted to know whether the snails that eat my plants just come back when I move them, and if they do, what is their homing distance?

    "I would say on the evidence (证据) that it would be safe to take your snails away beyond 100m or even further. If you put them somewhere nice with some food, you can be almost certain that they won't come back."

C

    There are over 800 boarding schools in the UK with students from home and foreign countries. Boarding schools started hundreds of years ago in the country. But the earliest boarding schools were set up for white, rich boys only. Now both boys and girls can go to boarding schools from the age of 7 to 18.

    What to do?

    In the UK, boarding schools have three terms in a school year, with about 13 weeks in each term. Students study and live together. They can't go outside if they are not allowed to. In some schools, each student has his or her subject plan. Besides the usual classrooms and laboratories, the boarding schools have lots of other facilities for their students, including music rooms, boats, swimming pools, cinemas and theatres. Most boarding schools have a "light-out" time. So when it's time to go to bed, all the lights in the bedrooms are turned off. There are house-masters to take care of students all the time, especially after school hours.

    What to wear?

Nearly all students at boarding schools wear a school uniform. Boys usually wear a shirt and a tie, and girls wear a white blouse, sometimes also a tie and a skirt. As students get older, the rules become less strict.

    ____________?

    In the UK, boarding schools provide students with delicious food. They can choose to have a full English breakfast or simply bread. They can also choose between a meal with no meat and another meal at lunch and dinner. And there is always self-service for salad (沙拉), other side dishes and a dessert. Students can also make themselves something to eat at any time in a kitchen, or drink tea or have a snack between meals.