It’s true that quite a few most respected scientific authorities have confirmed that the world is becoming hotter and hotter. There’s also strong evidence that humans are contributing to the warming. Countless recent reports have proved the same thing. For instance, a 2010 summary about the climate science by the Royal Society noted that: “The global warming over the last half-century has been caused mainly by human activity.”
You may not believe that humans could change the planet’s climate, but the basic science is well understood. Each year, billions of tons of greenhouse gases are released into the atmosphere because of human activity. As has been known for years, these gases hold heat that would otherwise escape to space, wrapping the planet in an invisible blanket.
Of course, the earth’s climate has always been changing due to “natural” factors such as volcanic eruption or changes in solar, or cycles concerning the Earth’s going around the sun. According to the scientific research, however, the warming observed by now matches the pattern of warming we would expect from a build-up of greenhouse gas in the atmosphere—not the warming we would expect from other possible causes.
Even if scientists did discover another reasonable explanation for the warming recorded so far, that would give birth to a difficult question. As Robert Henson puts it: “If some newly discovered factor is to blame for the climate change, then why aren’t carbon dioxide and the other greenhouse gases producing the warming that basic physics tells us they should be?”
The only way to prove with 100% certainty that humans are responsible for global warming would be to run an experiment with two identical Earths — one with human influence and one without. That obviously isn’t possible, and so most scientists are careful not to state human influence as an absolute certainty.
1.The text is developed by ________.
A.giving typical examples
B.following the order of space
C.comparing and finding differences
D.analyzing a theory and arguing it
2.Which of the following statements is right according to the passage?
A.Few scientific authorities have confirmed the existence of global warming.
B.Greenhouse gases prevent heat in the atmosphere from escaping to space.
C.Some new factors for the climate change have been discovered by scientists.
D.Scientists are absolutely sure about the human influence on the earth’s climate.
3.The underline word “identical” in the last paragraph probably means ________.
A.exactly the same B.totally different
C.extremely important D.partly independent
4.Which of the following can be the best title?
A.Are Humans Definitely Causing Global Warming?
B.Are All the Scientists Really Scientific?
C.Where Is Global Warming Leading Us to?
D.What’s the Relation of Global Warming and Greenhouse Gases?
Americans recognize that there is a past on which the present rests. But they have not developed their sense of the depth of time as much as this has been done in the Middle East and South Asia. The Arab looks back two to six thousand years for his own origins. History is used as the basis for almost any modern action. The chances are that an Arab won’t start a talk or a speech or analyze a problem without first developing the historical aspects of his subject. The American assumes that time has depths but seldom stresses the importance of it.
The American never questions the fact that time should be planned and future events should be fitted into a schedule. He thinks that people should look forward to the future and not talk too much on the past. His future is not very far ahead of him. Results must be obtained in the foreseeable future—one or two years or, at the most, five or ten. Promises to meet deadlines and appointments are taken very seriously. There is real punishment for being late and for not keeping commitments in time. The American thinks it is natural to calculate the value of time. To fail to do so is unthinkable. The American calculates how much time is required to do everything. “I’ll be there in ten minutes.” “It will take six months to finish that job.” “I was in the Army for four and a half years.”
The Americans, like so many other people, also use time as a link that chains events together. If one event occurs on the heels (紧接着) of another, they will certainly try to find a causal relationship between them. If A is seen around the area of B’s murder shortly after the crime has been committed, they automatically form a connection between A and B. However, events which are separated by too much time are difficult for them to connect in their minds. This makes it almost impossible for them as a nation to engage (从事) in long-range planning.
1.How do Americans see past time according to the first paragraph?
A.It’s worthless. B.It’s limited.
C.It reflects today. D.It helps start a talk.
2.What does the underlined phrase “to do so” in paragraph 2 refer to?
A.To calculate the value of the past.
B.To figure out the importance of time.
C.To plan a schedule for future events.
D.To meet deadlines and appointments.
3.When will Americans chain two events together?
A.When common evidence is found.
B.When A is found near the scene of B’s crime.
C.When the two events happen one by one.
D.When one event happens long after another.
4.What does the author mainly want to tell Americans to do?
A.See time further. B.Be punctual.
C.Study the past time. D.Make a long-range plan.
My husband and I were taking care of Lizzy, our daughter Melanie’s pet dog, on April 17 while Melanie was in the early stages of labour at the hospital. We received a text from our son-in-law, Joe Levanti, that Melanie was about to give birth. Tom and I sprang from our chairs suddenly. It’s a tradition in our immediate family to wait at the hospital for a birth. This would be Melanie and Joe’s first child.
“You take Lizzy out before we leave, and I’ll be waiting for you in the car!” I told Tom. I started the car and waited impatiently. I saw my husband walk out of the front door — but then out shot Lizzy and she was running down the street at great speed.
My husband ran after the dog, and I followed in my car. “Lizzy! Lizzy!” We shouted as fear filled our heart. We chased (追赶) her up and down our Bellwood Avenue. “She’s running onto Wireless Road!” We both screamed with fear. Lizzy dashed back and forth in the busy street. My husband kept up his chase on foot. I shouted to my husband, “Tom! Be careful when you cross the street!”
Within minutes, traffic was actually stopped on Wireless Road. A half-dozen good people got out of their cars to help. Soon, she ran into a safer area and then back to our street. With the help of six strangers, we caught her within a few anxious minutes. Everyone cheered, and we thanked the helpers again and again.
With Lizzy safely back inside, we drove straight to the hospital and were able to see our daughter in the delivery room. My husband and I are forever grateful to the strangers who might have saved Lizzy’s life and who enabled us to be there at the beginning of a precious new one.
1.Why was the author going to the hospital?
A.Because she was out of condition that day.
B.Because she was about to give birth.
C.Because her daughter’s first child was ill.
D.Because her grandchild was due pretty soon.
2.How did the author feel while Tom was running after the dog?
A.Impatient B.Concerned
C.Thankful D.Regretful
3.Where was the dog finally caught?
A.On Wireless Road. B.In a safer area.
C.On Bellwood Avenue. D.In the author’s car.
4.What is the author’s purpose in writing this text?
A.To show us how they got back their pet dog.
B.To express their sincere appreciation to the kind strangers.
C.To inform us how they managed to see their daughter in time.
D.To tell us what trouble their pet dog has caused them.
ARCTIC CIRCLE & NORTHERN LIGHTS TOUR
HIGHLIGHTS
Experience the Arctic Circle and amazing northern lights with us.
Cover a total of 400 miles in this 14-hour expedition.
Cross the broad Yukon River.
En-route, enjoy breathtaking views of Alaska, USA.
You may see moose, lynxes and foxes in their natural habitat.
ATTENTION: The Aurora Borealis (Northern Lights) is a natural phenomenon and can not be guaranteed. There is no refund (退款) if the Aurora Borealis does not appear.
PICKUP TIME
12:15 pm - 1:00 pm.
MEETING POINT
Your hotel in Fairbanks.
WHAT TO EXPECT
▲1: 00 pm—Departure from Fairbanks.
Trans-Alaska-Pipeline—Get a close-up view of the famous pipeline and learn interesting facts about the engineering and building period.
Arctic Circle—Have your picture taken at the Arctic Circle and receive your Arctic Circle Certificate.
Yukon River—Walk right to the edge of Alaska’s most famous river.
▲3: 00 pm—Arrival at your hotel in Fairbanks.
On the return journey to Fairbanks we pass many sites, which are perfect for possible northern lights viewing.
We provide ham (or veggie) sandwich, chips, sweets, two bottles of water and hot drinks. Please feel free to bring extra food.
CANCELLATION POLICY
Cancellations 30 days ahead of tour date are subject to 5% banking charge.
Cancellations within 30 days are non-refundable.
IMPORTANT
A minimum of 2 people is required for online booking. Single travelers and short notice reservations (within 7 days of tour date) always have to contact us for availability at info@1stAlaskaTours.com or 907-590-5900.
1.What can guests surely do on the tour?
A.Enjoy amazing northern lights. B.See some wild animals in their habitat.
C.Go through the Trans-Alaska-Pipeline. D.Get an Arctic Circle Certificate.
2.Which of the following cases is refundable?
A.Cancelling a month before tour date. B.Not crossing the Yukon River.
C.Booking within 7 days of tour date. D.Not seeing northern lights.
3.Where can the text probably be found?
A.In a geography textbook. B.On a science website.
C.On a tour homepage. D.In a photography journal.
假设你是李华。自从进入高中后，你的父母就不要你做家务，在家里父母也不敢大声说话。最近学校英文报“Student Voice”栏目征文，你想据此给父母写一封信，谈谈你的看法，发表在该栏目。
注意：1.词数100左右；
2.可以适当增加细节，以使行文连贯。
Dear Mom and Dad,
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
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Yours
Li Hua
假定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。作文中共有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：在缺词处加一个漏字符号（∧）并在其下面写出该加的词。
删除：在错的词下划一横线，并在该词下面写出修改后的词。
修改：在错的词下划一横线，并在该词下面写出修改的词。
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。
Is everybody here? I have a announcement to make. We’re going to climb the mountain if the weather gets much good. I wish the weather is better here for you.
If it doesn’t snow too heavy tonight, I’ll see you back here at six o’clock tomorrow morning. We’ll take our breakfast with us because we won’t reach the top of the mountains unless we set out early. Be there tomorrow morning with everything you need it. I’ll give you a list—you need a whistle in case you get separating from the rest of the group, warm waterproof clothing, gloves a good pair of boots. Don’t forget to bring the maps I gave you yesterday.
It’s time we had dinner now, so if anyone has any questions, you can ask me in the way to the dining hall. Let’s go.
