Just as a famous Chinese saying goes, a timely heavy snow is a ______ of good harvest next year.


  1. A.
    mark
  2. B.
    track
  3. C.
    sign
  4. D.
    appearance
C
詞義辨析。Mark標(biāo)記;track軌道,足跡;sign跡象,符號; appearance外貌。句意:正如一條著名的中國諺語所說,持續(xù)的大雪是來年好收成的一個跡象,瑞雪兆豐年。故選C。
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科目:高中英語 來源: 題型:閱讀理解

How can you find out what is going on inside a person' s body without opening the patient up? Regular X-rays can show a lot. CAT scans can show even more. They can give three-dimensional(三維) view of body organs(器官).

What is a CAT scan? CAT stands for Computerized Axial Tomography(層面X線照相術(shù)). It is a special X-ray machine that gets a 360 - degree picture of a small area of a patient's body.

Doctors use X-rays to study and examine diseases and injuries within the body. X-rays can find foreign objects inside the body or to take pictures of some organs inside if special things as dyes or special liquids are added to the organs to be X-rayed.

A CAT scanner, however, uses a beam(光束) of X-rays to give a cross-sectional view of a particular part of the body. A fine beam of X-rays is scanned across the body and circled around the patient from many different angles(角度). A computer analyzes(分析) the information from each angle and produces a clear cross-sectional picture on the screen. This picture is then photographed for later use. Several cross-sections, taken one after another, can give a clear "photo" of the entire body or of any body organs. The newest CAT scanners can even give a clear picture of active, moving organs just as a fast-action camera can "stop the action" giving clear pictures of what appear only mistily(模糊) to the eye. And because of the 360 - degree pictures, CAT scans show 3-dimensional views of organs in a manner that was once only seen during surgery or autopsy (examining a dead body).

69. According to the first two paragraphs, doctors can see the inside of a patient's body by ______.

A. giving the patient an operation

B. checking body organs

C. getting a 360-degree picture of a small area of a patient's body

D. examining the CAT

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B. many pictures can be taken at the same time

C. the information about the scanned patient is not highly valued

D. some pictures of the scanned parts of the body are developed for further examinations in the future

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科目:高中英語 來源:2011屆福建上杭一中高一下學(xué)期期中英語試卷 題型:閱讀理解

As I began to feel completely sick of the cold North American winter, spring break finally arrived! What made me even more excited was that we were going to Florida to enjoy the warm weather!
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When we finally landed in Wisconsin again, everyone looked tanned and full of energy!
【小題1】 What happened to the author and her host mom at the airport?

A.They lost their passports.
B.Their luggage was overweight.
C.They quarreled with the other passengers.
D.The decorations and tinfoil brought them trouble.
【小題2】 What does the underlined word “they” in Para 3 most probably refer to?
A.The author and her host family people.
B.People in charge of security at the airport.
C.People sharing the same house with the author.
D.The author’s host mom and the host sister.
【小題3】 We can learn from the first paragraph that the author   .
A.hated going to FloridaB.had no sense of weather
C.disliked the cold winterD.didn’t like living in North America
【小題4】From the passage, we can infer that   .
A.the author thought little of her host family
B.the author didn’t like her 4-year-old host sister
C.the security check at the airport was very strict
D.the author didn’t get along well with her host family

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A.find a dress you have got used to
B.buy some modern shoes,ties,etc.
C.have your hair cut
D.put on your newly-bought clothes
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C.Looking at each other for a long time.
D.A way of getting a desirable job.
【小題3】People usually do the following things before a job interview.Which is the right order for doing them?
a.Asking a friend to give you an unreal interview.
b.Understanding the nature of the organization.
c.Paying attention to your clothes.
d.Arriving at the place of the interview ahead of time.
e.Getting some information from the advisers.
A.a(chǎn)—e—b—c—dB.d—c—b—a—e
C.b—e—a—c—dD.e—d—a—b—c
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 Just as a book is often judged ______ by the quality and appearance of its cover, a person is judged immediately by his appearance.

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科目:高中英語 來源:2012-2013學(xué)年安徽省高三第七次模擬考試英語試卷(解析版) 題型:閱讀理解

SEE a cell phone cover that you like on Taobao? Forget about placing an order, paying the bill online and waiting for days for it to be delivered to you. In the near future, you'll be able to get it in minutes just by hit­ting "print" on your computer.

You might find it hard to believe that you could actually "print" an object like you would a picture. But it is not that hard to under­stand how it would work. Just as a traditional printer sprays (噴) ink onto paper line by line, modern 3-D printers spread material onto a surface layer by layer, from the bottom to the top, gradually building up a shape.

Instead of ink, the materials the 3-D printer uses are mainly plastic, resin (樹脂)and certain metals. The thinner each layer is --- from a millimeter to less than the width of a hair ---  the smoother and finer the object will be.

This may sound like a completely new technology, but the truth is that 3-D printing has been around since the late 1980s. Back then, it was barely affordable for most people, so few knew about it.

Last year, though, saw a big change in the 3-D printing industry--- printers became much cheaper. For example, 10 years ago a desktop 3-D printer might have cost £20,000 (200,000 yuan), while now they cost only about £ 1,000, according to the BBC.

Taken out of the factory and in­troduced to more diverse and com­mon uses, 3-D printing can create just about anything you can think of ---flutes (笛子), bikinis, jewelry, aircraft parts and even human organs. In fact, scientists from Cornell Univer­sity in New York have just made an artificial ear using a 3-D printer, accord­ing to Science Daily. The fake ear looks and acts exactly like a natural one.

However, as 3-D printing becomes more commonplace, it may bring about certain problems --- such as piracy. "Once you can download a coffee maker, or print out a new set of kitchen utensils (餐具) on your personal 3-D printer, who will visit a retail (零售的) store again?" an expert in 3-D printing told Forbes News. Even more frightening, what if anyone in the world could use a 3-D printer to print out a fully functioning gun?

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A.The 3-D printing technology was taken out ofthe factory.

B.The 3-D printer became more affordable forconsumers.

C.The 3-D printer was used for medical treatmentfor the first time.

D.3-D printing technology began to be used invarious fields.

3.How is the last paragraph developed?

A.By analyzing a cause and an effect.          B.By making comparisons.

C.By giving examples.                      D.By presenting research findings.

4.What is the best title of the passage?

A.Printing out everything                   B.Technology in the future

C.Online shopping disappearing              D.Great demand for 3-D printers

 

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