A.bothB.anyC.eitherD.neither
A.both
B.any
C.either
D.neither
A.both
B.any
C.either
D.neither
(1)Schutte’s experiment focuses on the use of on-line education _____
A、as a substitute for conventional teaching
B、in support of conventional teaching
C、as an improvement of conventional teaching
D、as a part of conventional teaching
(2)On-line education is different from the traditional one in that _____
A、it does not need any teachers
B、students work alone
C、there is much cooperation among students
D、exams are taken on-line
(3)The on-line group do better than the traditional group because _____
A、they work together through the Internet
B、they are interested in the Internet
C、they want to do better than the “traditional” group
D、they don’t like the traditional teaching
(4)The result of the study shows that _____
A、students can learn without teachers
B、learning at home is better than attending courses in the classroom
C、working on technology problems creates enthusiasm for students
D、advanced technology can enhance learning
(5)Jeff Morgan’s attitude toward the on-line teaching is _____
A、pessimistic
B、positive
C、neutral
D、critical
A.English an
B.an English old charming
C.an Engish
D.an old chaming Engish
According to the news, what has happened last autumn?
A.A rocket has been successfully launched.
B.There was a rocket hitting the moon.
C.A deep crater appeared on the moon"s South Pole.
D.There was an amazing finding made by LRO.
People born in autumn live longer than those born in spring because______.
A.a mother giving birth in spring has less nutrition during her pregnancy
B.a mother giving birth in autumn eats more vitamins during the last stage of her pregnancy
C.a baby born in spring receives no protection from infections
D.a baby born in autumn is never subject to any infections
听力原文:M: Welcome back! I didn't see you in physics class last Thursday.
W: I was absent myself that day. I went on a trip to New York, I just came back last night.
M: New York! What a city! I'm sure you had lots of fun there.
W: No, not really. I was busy doing business. It's very hot there, too.
M: Well, did you enjoy the trip? I have never been to New York. I'd like to go there someday.
W: Yeah, it was OK. I went to see the Statue of Liberty and that made the trip interesting. Try to make it during the spring or autumn when the weather is nice.
When did the woman absent the physics class last week?
A.Thursday.
B.Tuesday
C.Saturday.
【C1】
A.less
B.very
C.seldom
D.otherwise
听力原文: People born in the autumn live longer than those born in the spring and are less likely to fall chronically ill when they are older, according to an Austrian scientist.
Using census data for more than one million people in Austria, Denmark and Australia, scientists at the Max Planck Institute for Demographic Research in the northern German town of Rostock found the month of birth was related to life expectancy over the age of 50. Seasonal differences in what mothers ate during pregnancy, and infections occurring at different times of the year could both have an impact on the health of a new-born baby and could influence its life expectancy in older age.
"A mother giving birth in spring spends the last phase of her pregnancy in winter, when she will eat less vitamins than in summer, ' said Gabriele Doblhammer, one of a team of scientists who carried out the research. "When she stops breast-feeding and starts giving her baby normal food, it's in the hot weeks of summer when babies are prone to infections of the digestive system. '
In Austria, adults born in autumn (October-December) lived about seven months longer 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, the picture was similar. Adults born in the Australian autumn—the European spring—lived about four months longer than those born in the Australian spring. The study focused on people born at the beginning of the 20th century, using death certificates and census data. Although nutrition at all times of the year has improved since then, the seasonal pattern persists, Doblhammer said.
(33)
A.Those who were born in spring.
B.Those who were born in summer.
C.Those who were born in autumn.
D.Those who were born in winter.
" A mother giving birth in spring spends the last stage of her pregnancy in winter, when she will eat less vitamins than in summer, " said one of the scientists. "When she stops breast-feeding and starts giving her baby normal food, it's in the hot weeks of summer when babies have tendency to infections of the digestive system. " In Austria, adults born in autumn lived about seven months longer than those born in spring, and in Denmark adults with birthdays in autumn outlived those born in spring by about four months. In the southern hemisphere, the picture is similar. Adults born in the Australian autumn lived about four months longer than those born in the Australian spring. The study focused on people born at the beginning of the 20th century, using death certificates and census data. Although nutrition (营养) at all times of the year has improved since then, the seasonal pattern persists.
The passage is mainly about______.
A.how the month of birth is related to life expectancy
B.how the seasonal pattern affects the health of new-born babies
C.how nutrition in different seasons influences life expectancy
D.why people born in autumn are free from chronic illness
Why leaves change colors
If you are lucky, you live in one of those parts of the world where Nature has one last fun before settling down into winter's sleep. In those lucky places, as days shorten and temperatures become crisp, the quiet green palette(调色板) of summer leaves is transformed into the vivid autumn palette of reds, oranges, golds, and browns before the leaves fall off the trees. On special years, the colors are truly breathtaking,
How does autumn color happen?
For years, scientists have worked to understand the changes that happen to trees and shrubs in the autumn. Although we don't know all the details, we do know enough to explain the basics and help you to enjoy more fully Nature's multicolored autumn farewell. Three factors influence autumn leaf color-leaf pigments(色素), length of night, and weather, but not quite in the way we think. The timing of color change and leaf fall is primarily regulated by the calendar. That is, the increasing length of night. None of the other environmental in flounces -temperature, rainfall, food supply, and so on—are as unvarying as the steadily increasing length of night during autumn. As days grow shorter, and nights grow longer and cooler, biochemical processes in the leaf begin to paint the landscape with Nature's autumn palette.
Where do autumn colors come from?
-A color palette needs pigments, and there are three types that are involved in autumn color. Chlorophyll(叶绿素),which gives leaves their basic green color. It is necessary for photosynthesis(光合作用), the chemical reaction that enables plants to use sunlight to manufacture sugars for their food.
-Carotenoids(类胡萝卜素), which produce yellow, orange, and brown colors in such things as corn, carrots, and daffodils.
-Anthocyanins(花青素), which give color to such familiar things as red apples, grapes, blue berries, cherries, strawberries, and plums. They are water soluble and appear in the watery liquid of leaf cells.
Both chlorophyll and carotenoids are present in the chloroplasts of leaf cells throughout the growing season. Most anthocyanins are produced in the autumn, in response to bright light and excess plant sugars within leaf cells.
During the growing season, chlorophyll is continually being produced and broken down and leaves appear green. As night length increases in the autunm, chlorophyll production slows down and then stops and eventually all the chlorophyll is destroyed. The carotenoids and anthocyanins that are present in the leaf are then unmasked and show their colors.
Certain colors are characteristic of particular species. Oaks turn red, brown, or russet; hickories, golden bronze; aspen and yellow-poplar, golden yellow; dogwood, purplish red. Maples differ species by species: red maple turns brilliant scarlet; sugar maple, orange-red; and black maple, glowing yellow. Leaves of some species such as the elms simply shrink and fall, exhibiting little color.
The timing of the color change also varies by species. Sourwood in southern forests can become vividly colorful in late summer while all other species are still vigorously green. Oaks put on their colors long after other species have already shed their leaves. These differences in timing among species seem to be genetically inherited, for a particular species at the same latitude will show the same coloration in the cool temperatures of high mountains at about the same time as it does in warmer lowlands.
How does weather affect autumn color?
The amount and brilliance of the colors that develop in any particular autumn season are related to weather conditions that occur before and during the time the chlorophyll in the leaves is decreasing. Temperature and moisture are the main influences. A succession of warm, sunny days and cool, crisp but not freezing nights seems to bring about the most specta
A.Y
B.N
C.NG
2. Thanksgiving Day Almost every culture in the world has held celebrations of thanks for a plentiful harvest. The American Thanksgiving holiday began as a feast of thanksgiving in the early days of the American colonies almost four hundred years ago. In 1620, a boat filled with more than one hundred people sailed across the Atlantic Ocean to settle in the New World. This religious group had begun to question the beliefs of the Church of England and they wanted to separate from it. The Pilgrims settled in what is now the state of Massachusetts. Their first winter in the New World was difficult. They had arrived too late to grow many crops, and without fresh food, half the colony died from disease. The following spring the Iroquois Indians taught them how to grow corn, a new food for the colonists. They showed them other crops to grow in the unfamiliar soil and how to hunt and fish. In the autumn of 1621, bountiful crops of corn, barley, beans and pumpkins were harvested. The colonists had much to be thankful for, so a feast was planned. They invited the local Indian chief and 90 Indians. The Indians brought deer to roast with the turkeys and other wild game offered by the colonists. The colonists had learned how to cook cranberries and different kinds of corn and squash dishes from the Indians. To this first Thanksgiving, the Indians had even brought popcorn. In following years, many of the original colonists celebrated the autumn harvest with a feast of thanks. After the United States became an independent country, Congress recommended one yearly day of thanksgiving for the whole nation to celebrate. George Washington suggested the date November 26 as Thanksgiving Day. Then in 1863, at the end of a long and bloody civil war, Abraham Lincoln asked all Americans to set aside the last Thursday in November as a day of thanksgiving. Thanksgiving falls on the fourth Thursday of November, a different date every year. The President must proclaim that date as the official celebration. Thanksgiving is a time for tradition and sharing. Even if they live far away, family members gather for a reunion at the house of an older relative. All give thanks together for the good things that they have. In this spirit of sharing, civic groups and charitable organizations offer a traditional meal to those in need, particularly the homeless. On most tables throughout the United States, foods eaten at the first thanksgiving have become traditional. 4. Which of the following statement is True?
A、The American Thanksgiving Day has a history of five hundred years.
B、The popcorn was brought by Native Americans.
C、George Washington made the last Thursday in November as a day of thanksgiving.
D、Thanksgiving is the only time in America for family reunion.
So one day he gavehis four sons a task, asking each of them to go to see a pear tree at a distance in different seasons.
The first son set out in winter, the second in spring, the third in summer, and the youngest son in autumn.
When all of them returned home, the man called them together to describe what they had seen.
The first son said the tree was ugly, bent, without leaves and therefore hopeless.
The second son said it was not like that, but the tree was covered with green buds (芽 and full of hope.
The third son disagreed, saying that it was full of flowers which smelled so sweet and looked so beautiful, and that hehad never seen such beautiful scenery.
The last son disagreed with all of them, saying that the tree was filled with fruits, full of life and happiness.
The man told his four sons that all of them were correct, because they only saw the tree in one season. He told themthat they could not judge a tree or a person only by one season, and that only when all the seasons were over could theyknow a tree or a person fully.
We can learn more from this story. If we just give up in winter, we will miss the hope of spring, the beauty of summerand the harvest of autumn in our life.
The man wanted his sons not to____________
A.have a harvest too soon
B.accept a task loo quickly
C.make a conclusion too soon
D.give n description too quickly
According to the second son, the tree was————
A.lifeless
B.hopeful
C.fruitless
D.beautiful
In the eyes of the third son, the pear tree was a beautiful view.A.in spring
B.in winter
C.in autumn
D.in summer
When the youngest son saw the tree, it was a season of.A.harvest
B.promise
C.coldness
D.sweetness
What can we learn from the last paragraph?A.We can enjoy sweet fruits in autumn.
B.We can enjoy a beautiful view in summer.
C.We should not lose hope when we are in difficulty.
D.We should lose hope when we are feeling cold.
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