Explorers started making navigation (导航) charts showing how wide the ocean was more than 500 years ago. But it’s much harder to calculate how deep it is.
In 1872 the HMS Challenger, a British Navy ship, set sail to learn about the ocean, including its depth. It carried 181 miles (291 kilometers) of rope to measure the depth of the ocean. During their four-year voyage, the Challenger crew collected samples of rocks, mud and animals from many different areas of the ocean. They also found one of the deepest zones, in the western Pacific, the Mariana Trench which stretches for 1,580 miles (2,540 kilometers).
Today scientists know that on average the ocean is 2.3 miles (3.7 kilometers) deep, but many parts are much shallower or deeper. To measure depth they use sonar, which stands for Sound Navigation And Ranging. A ship sends out pulses of sound energy and measures depth based on how quickly the sound travels back.
Ocean scientists like me study the sea floor because it helps us better measure the ocean. Our planet’s outer, layer is made of tectonic plates. The Hawaiian-Emperor Seamount chain, a line of peaks on the ocean floor, was created when a tectonic plate moved over a spot where hot rock welled up from deep inside the Earth. When two tectonic plates move away from each other underwater, new material rises up into Earths layer. This process, which creates new ocean floor, is called seafloor spreading. Sometimes super-hot liquids from inside the Earth shoot up through cracks in the ocean floor called hydrothermal vents.
Amazing fish, shellfish, tube worms and other life forms live in these zones. Between the creation and destruction of ocean plates, sediments (沉淀物) collect on the sea floor and provide an archive of Earth’s history, the evolution of climate and life that is available nowhere else.
1.Why did the HMS Challenger make the voyage?
A.To test navigation. B.To calculate the age of the ocean.
C.To explore the ocean. D.To do research into Mariana Trench.
2.How do scientists know the depth of the ocean?
A.By measuring it with ropes.
B.By studying samples of rocks and mud.
C.By analyzing the habitats of the animals.
D.By studying the returning speed of the sound.
3.What is the fourth paragraph mainly about?
A.Certain changes of the sea floor.
B.The layers that make up the Earth.
C.The way that a volcano comes into being.
D.Some definitions of the seafloor spreading.
4.What can be a suitable title for the text?
A.How Deep Is the Ocean? B.How Is the Ocean Studied?
C.Ocean: An Unknown World D.Nature: A Place for Wildlife
A few years ago, my husband Charlie and I had marital problems. Growing family responsibilities and financial worries took a toll on us and we began arguing frequently, often late into the night.
However, neither of us could take the step that would end our eleven-year marriage and bring heartbreak to our three young children. Deep down we knew we still loved each other, so we determined to work it out. Through countless discussions, we began to close the gulf. The more honest we were, the closer we became.
When I felt we were reaching solid ground, I asked my husband to give me an “eternity (永恒) ring”. It was not so much the ring I wanted; it was the reassurance (保证) I thought it would bring.
We went shopping on a beautiful summer day. We walked hand in hand along a row of jeweler’s shops. Finally I found a ring I liked. While waiting for it to be adjusted, the jeweler took my left hand and glanced at my engagement ring. “May I clean it for you?” he asked. “It really doesn’t sparkle like it used to.” Charlie said as I slipped the ring off my finger. A few minutes later the jeweler was back. The ring shone like new!
On the drive home, I didn’t take my eyes off it. I forgot all about the eternity ring. I just couldn’t believe how this old ring suddenly sparkled the way it had the day Charlie gave it to me. I had taken it for granted these past years, but with a little polish it could still make my heart beat fast.
And that’s the way it is with a marriage. You have to work at keeping it polished and new, or else the grime (污垢) of the passing years will hide the joy. I put my hand on the seat between us and spread my fingers. Charlie covered my hand with his. I felt I was lucky to be able to see the sparkle in something gold when I thought I needed something new.
1.Why did the author and her husband decide to solve the problems?
A.They were a famous couple. B.They didn’t want to divorce.
C.The problems were not serious. D.They had experience in doing so.
2.What does the underlined part in paragraph 3 probably mean?
A.free of trouble B.arriving at a square
C.wealthy and generous D.in good relationship
3.Why did the author forget all about the eternity ring on their way back home?
A.Her husband kept it for her. B.They didn’t actually pay for it.
C.The old ring’s light attracted her attention. D.The couple were talking all the way merrily.
4.What does the author mainly want to express in the last paragraph?
A.We tend to prefer new objects to old ones.
B.One should remain thankful for what he has got.
C.Marriage should be constantly polished.
D.We should try to rediscover the true value of old objects.
Four Inspiring Movies
Forrest Gump（1992）
Forrest Gump is a simple man with a low IQ but good intentions. This movie follows the fictional story in which the simple man makes his way through some of the more turbulent（动荡的）times from the 1960s through 1980s. This film took home six Oscars, inspired a “Weird Al” song, and proves that a big heart is the most important thing.
It's a Wonderful Life（1946）
No movie list would be complete without a nod to the past. Let's go with this Christmas classic, about a man with serious financial troubles who intends to commit suicide（自杀）by jumping off a bridge. His guardian angel Clarence Odbody stops him and tells him what life would have been like for those close to him had he never been born. Realizing how much he means to others, he rushes back home and all sorts of happy, inspirational, Christmassy things happen.
Dead Poet's Society（1990）
John Keating（Robin Williams）is a high school English literature teacher at a famous all-male boarding school who gets into trouble with the school administration after encouraging his students to challenge authority and think for themselves. It is certainly inspirational, if not also frustratingly sad.
A Beautiful Mind（2001）
This movie tells the story of John Nash（Russell Crowe）, a professor at Princeton, a US university, who revolutionized the field of game theory and fell into madness as a result of paranoid schizophrenia（精神分裂症）. With the love and support of his family as well as the help of medical professionals, he managed to overcome his mental illness and continued to make contributions to the field of mathematics.
1.What can we know about It's a Wonderful Life?
A.It proves a big heart important.
B.It has a happy ending.
C.It tells a story of friendship.
D.It is famous for the leading role.
2.Which film are Robin Williams' fans more likely to watch?
A.Forrest Gump. B.I's a Wonderful Life.
C.Dead Poet's Society. D.A Beautiful Mind.
3.At the end of A Beautiful Mind，the professor___________.
A.became a famous expert in psychology
B.got his family's support for studying game theory
C.gained lots of experience in treating schizophrenia
D.defeated the disease and went on to pursue maths
假如你是高三学生李华，得知你的新西兰笔友Steven被我国北京大学汉语语言专业录取，请给他写一封信。内容包括：
1.写信目的；
2.专业简介；
3 .本人情况。
注意：1.词数100左右；
2.可以适当增加细节，以使行文连贯。
Dear Steven,
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Yours,
Li Hua
假如英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中 共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。增 加:在缺词处加一个漏词符号（∧，并在其下面写出该加的词。
删除:把多余的词用斜线（\）划掉。
修改:在错的词下面划一横线，并在该词下面写出修改后的词。
注意:1.每处错误及其修改均仅限一词；
2.只允许修改10处，多者（从第11处起）不计分。
I still well remember it was that I was in Senior Grade One. Every one of my class said I was smart and clever, but I fancied myself too. But to my great disappoint, I failed in a very important test. See through my puzzle, my head teacher said me, " Failure comes from lack of efforts rather than lack of ability. " It was his word that woke me up. From now on I spared no efforts to study and made a great progress in the end. I have realized that we failed because we don't try your best rather than we are not intelligent.
阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
York is sampling some of the delicacies （美食）that pop up in the office, either when staffers return from China 1. when the goodies are cooked right here. There are the annual holiday servings of baozi and jiaozi and a 2.（ various） of treats containing bean paste .
They all have unique tastes.
This week I got to try something new： goji berries, also 3.（ know） as wolfberries, along with cookie-type treats based on the bright fruit. Hu He, one of China Daily's website editors currently 4.（ work） in New York, gave me and other colleagues each a supply 5. goji berries. And I plowed through the entire bottle in a few days.
Goji has been regarded as a 6. （tradition） health supplement by Chinese people. In recent years, demand for goji has been rising and we 7. （ see） increasing numbers of buyers from overseas.
Why am I going on about goji berries? It turns out they have some pretty good health 8.（benefit） : high levels of vitamins, minerals and antioxidants（抗氧化剂），the last of 9.help fight cancer ； they supposedly can help improve eyesight, reduce blood pressure, control cholesterol.（胆固醇）and improve circulation. One other claim about goji berries 10. （be） that they can raise your metabolism （新陈代谢）,which contributes to weight loss.
