纳米)is now a fashionable term all over the world, few people know exactly what it is．It has become a new favorite of manufacturers and sellers in recent years．Many “high-tech” products bearing the name “nano” have entered the market, bringing more mysterious feeling to surprised consumers．
Nanometer is a very small length unit of measure, and is very small．One millimeter is 1000 micrometers, and one micrometer is 1000 nanometers．That is, one nanometer is one billionth of a meter．Nano materials are solid materials composed of particles(
粒子)or crystallites(晶体)of less than 100 nanometer in size．Then, is a cup made of nano material really any different from an ordinary cup in function as far as how it works?
Are nano cups really so wonderful? A reporter went to the Institute of Nanomedicine, which is the first such institute of such a sort in the world and the only one in China, specializing in researching the investigation of the application of nano technology into medicine．
A water molecule(
分子)is composed of 2 hydrogen atoms and 1 oxygen atom．It can be changed only by special working skillfully of the atoms．The material making up the cup can have nanometer particles．But it cannot change the chemical and physical properties of the water contained in it．The water in the cup is still water．When people drink it, it will produce no special effect on human body．
Professor Ji who worked in the Instiute of Nanomedicine told the reporter, so far, the investigation of nano materials is still limited in the laboratory．No commercial micro products can be produced yet．With the present level of science and technology, the time of everyday goods made of nanometer materials is still years away．
The products labeled with nano marks in the market now are only traditional products coated with a thin layer of nanometer material, which makes them more abrasion resistant(
耐磨), much easier to be cleaned, or oil resisting or moth proof(防蛀)．
Professor Ji explained that nano cup is a real cup．It can also be included in the list of nano products in a certain sense．But the nano cup has not changed its property and function as a cup．It is not a magical medicine for curing and health care．
(1)
Which of the following shows the right relationship?
[ ]
A．
nanometer＜micrometer＜millimeter＜meter
B．
micrometer＜millimeter＜nanometer＜meter
C．
nanometer＜millimeter＜micrometer＜meter
D．
millimeter＜micrometer＜nanometer＜meter
(2)
It can be inferred from the passage that ________．
[ ]
A．
real nano products are being produced by some companies
B．
nano materials have been put into use in daily goods
C．
the nano cup is very effective in curing and health care
D．
real nano products haven’t become available for people
(3)
The underlined word “properties” in the fourth paragraph probably means ________．
My father made a deal with me that he would match whatever I could come up with to buy my fir st car．From the time I wa s a saver．My allowance, back in tho se day s, wa s twenty five cent s a week．I grew up on a farm near a small town called Ventura．In tho se day s the area wa s mo stly agricultural．The climate wa s and still i s a s clo se to perfect a s you could get．I earned some of my money picking one crop or another．When I wa s about ten, a school friend' s family owned walnut orchard s(果园)and it wa s harve st time．She told me we could earn five dollar s for every bag of walnut s we picked．I certainly learned about picking walnut s that day．Not surprisingly, that wa s my fir st and la st time a s a walnut picker．
In 1960 my grandmother pa s sed away．She left me 100 share s of AT＆T．One hundred share s of stock don't seem like much today but back then tho se share s paid me＄240 per year in dividend s(利息)．That wa s huge for a kid my age．
By the time I wa s seventeen．I had saved up ＄ 1, 300 and I knew exactly that I wanted．Ithink my father wa s somewhat suri sed when I announced I had saved up ＄ 1, 300 and wa s ready to buy my new car．I'll never forget the evening my father said, “Let' s go see about that car”．I wa s so excited．
My father could have ea sily ju st given me the car but he alway s in si sted that hi s children work for what they got．Thi s wa s not a bad thing．I learned self-reliance．Self-reliance i s equal to freedom．Now that I think about it I need to be thanking my father．
(1)
Which one of the following s didn't belong to the saving of ＄1, 300?
[ ]
A．
Weekly allowance．
B．
Her earning s by picking crop s．
C．
Share s left by grandma．
D．
Money earned from selling share s．
(2)
The underlined part in the second paragraph probably meant ________．
[ ]
A．
she didn't have the chance of picking walnut s
B．
enough money had been earned for her car
C．
the work wa s too hard for children like her
D．
she had no time to do that again for some rea son
(3)
We can know from the pa s sage the author got her car at the age of ________．
[ ]
A．
16
B．
17
C．
18
D．
19
(4)
The purpo se of the author' s father doing like that wa s to ________．
[ ]
A．
give the author freedom
B．
be unwilling to buy the author a car
C．
teach the author to learn self－reliance
D．
give the author a big surpri se
阅读理解
Two year s ago, Wendy Ha snip, 47，experienced a brain injury that left her speechle s s for two week s．When she finally recovered, she found her self talking with what seemed to be a French accent．“I phoned a friend the other day, and she spent the fir st ten minute s laughing, ” Ha snip said at the time, “while I have nothing again st the French．”
Ha snip suffered from foreign accent syndrome(外国口音综合症), a rare condition in which people find them selve s speaking their own language like someone from a foreign country．The condition u sually occur s in people who have experienced a head injury or a stroke-a sudden lo s s of con sciou sne s s, sen sation, or movement cau sed by a blocked or broken blood ve s selin the brain．
The condition wa s fir st identified during the Second World War in a Norwegian woman who se head wa s injured during an attack by the German military．The woman recovered but wa s left with a German-sounding accent, to the horror of fellow villager s who avoided her after that．
Re searcher s have di scovered that the combined effect of the damage to several part s of the brain make s victim s lengthen certain syllable, mi spronounce sound s, and change the normal pitch(音高)of their voice．Tho se change s in speech add up to what sound s like a foreign accent．
Another re searcher, a phonetician, say s victim s of the syndrome don't acquire a true foreign accent．Their strangely changed speech only re semble s the foreign accent with which it ha s a few sound s in common．
When an Engli sh woman named Annie recently developed foreign accent syndrome after a stroke, she spoke with what seemed to be a Scotti sh accent．However, Annie' s Scotti sh coworker s said she didn't sound at all like a Scot．
(1)
According to the pa s sage, people ________ may have foreign accent syndrome．
[ ]
A．
who se parent ha s experienced a head injury
B．
who have lived in a foreign country for a long time
C．
who have lo st their con sciou sne s s owing to a stroke
D．
who have learned foreign language from their coworker s
(2)
If a per son suffer s foreign accent syndrome, ________．
[ ]
A．
hi s coworker s will be afraid of him and avoid contacting with him
B．
he ha s more chance of suffering stroke again
C．
he will speak a fluent foreign language like native speaker s
D．
hi s speech only ha s a few sound s in common with the foreign accent
(3)
Writing thi s pa s sage, the writer' s main purpo se i s to ________．
[ ]
A．
introduce foreign accent syndrome and some related information
B．
warn people not to be at the ri sk of experiencing a stroke
C．
make it clear that foreign accent syndrome can be cured
D．
tell a story of an injured woman during the Second World War
