B
If you have a bottle of water recycled from urine(尿), would you drink it? Astronauts at the ISS may soon do so.
NASA（美国航空航天局）said it would see a high-tech machine to recycle wastewater at the ISS. The machine will recycle water for washing hands, shower water, water for brushing teeth and even urine to make drinking water. It will save millions of dollars each year.
At present, each ISS astronaut uses about 4.4 liters of water every day. It costs about 24 million dollars a year to send water up to the ISS. A liter of water costs about $11,000.
The machine will be sent to the ISS later. NASA hopes it will recycle about 93% of all the water used on the station.
Will the water be clean? Different chemicals will be put in the wastewater. The water will be heated to 130℃ to kill bacteria. Scientists say that the recycled water is thousands of times better than the water from a city tap(水龙头).
50. NASA will use a high-tech machine to recycle wastewater at the ISS to ______.
A. protect the ISS
B. make the astronauts work harder
C. provide better water and food for the astronauts
D. save the cost of sending water up to the ISS
51. At present it costs NASA about ___dollars to transport water up to an astronaut at the ISS a day.
A. 4.4 thousand B. 11 thousand C. 48.4 thousand D. 24 million
52. The passage mainly tells us something about ______.
A. water recycling at the ISS B. the International Space Station
C. a high-tech machine D. the cost of NASA
53. Which of the following sentences is TRUE?
A. The recycled water is much better than that from a city tap.
B. The high-tech machine will recycle all the water used on the station
C. The ISS astronauts use more water than us
D. The high-tech machine can only recycle urine to make water
Prepare: Plan ahead and think about what you are going to say. In the words of Mark Twain, it usually takes you more than three weeks to prepare for it.
Know your subject: Always make sure that you know the subject and have background information at hand for question time.
Know you audience: Find out who you will be addressing so that you can tailor(适合) your comments accordingly.
Make a point: Keep your speech short and brief and have a few clear points that you need to convey(传达).
Practice: Never learn your speech by heart as your speech will become stilted, but do practice it a few times in front of the mirror, your parents or your dog.
Eye contact: If the thought of looking into a sea of faces scares you, adjust your gaze（注视）regularly at different points in the room to create the same effect.
First impressions: Your first impression is important when making a public presentation. Find out about dress codes(准则) at the place so that you look your best and, if possible, check the microphone beforehand to ensure you know how to use it.
Get help: If public presentations are a major part of your life, read up on the art of speech---writing and delivery to improve your skills.The advice benefits (有益于)____________________.
| A．teachers | B．actors | C．speechmakers | D．spokesmen |
Knowing your subject helps you __________.
| A．make a perfect speech |
| B．make better answers when asked questions about the subject. |
| C．keep a clear head |
| D．attract people’s attention |
The underlined word “stilted” probable means ________ here.
| A．unnatural | B．unnecessary | C．unpleasant | D．undeveloped |
If asked for more advice besides what has been mentioned in the text, you may suggest ______.
| A．eye contact with the audience | B．proper clothes |
| C．proper tones and body languages | D．more practice |
79 Mayfair Road
Plumton, Kent
October 10th
Dear Rosemary,
I was very glad to get your letter this morning. I really ought to have written to you---it was my turn, I know----but I have been terribly busy. The children seem to take up all my time. I am thinking of sending Ann to a nursery school. She’ll be four next month. Baby has just started to walk and doesn’t give me a moment’s peace. But you know what it is like! How are all your children? I’m sure they love living in the country.
I’m afraid we can’t come over to see you next Sunday, as you suggest. Tom’s mother is coming to spend the day with us. What about the Sunday after that----- the twenty-second? We are free that day and should love to come. We’re longing to see your house.
Let me know, then, if the Sunday after next suits you. May we come for lunch? We’d like to leave fairly early in the evening to avoid the heavy traffic on the roads.
Love from us all,
Edna Edna can not see Rosemary the following Sunday because_____.
| A．she is afraid of the traffic | B．Tom’s mother is coming to see them that day |
| C．she prefers to come on 22nd | D．she is terribly busy with the children |
What doesn’t give Edna a moment’s peace?
| A．That she has been thinking of sending Ann to a nursery school |
| B．That Tom’s mother will come soon |
| C．That she has been thinking of going to see Rosemary’s new house |
| D．That her baby has just started to walk |
We can infer from the letter that Tom is_________.
| A．Edna’s husband | B．Edna’s son | C．Edna’s neighbor | D．Edna’s father |
A father sat at his desk poring over his monthly bills when his young son rushed in and announced, "Dad, because this is your birthday and you’re 40 years old, I’m going to give you 40 kisses, one for each year!" When the boy started making good on his word, the father cried out suddenly, "Oh, Andrew, don’t do it now; I’m too busy!"
The youngster immediately fell silent as tears welled up in his big blue eyes．Apologicaliy the father said, "You can finish later．"
The boy said nothing but quietly walked away, disappointment written over his face．That evening the father said, "Come and finish the kisses now, Andrew!" But the boy didn’t respond．
Unfortunately, a few days later after this incident, the boy had an accident and was drowned．His heartbroken father wrote．．．
"If only I could tell him how much I regret my thoughtless words, and could be sure that he knows how much my heart is aching．"
Love is not only giving．Any loving act must be warmly accepted or it will be taken as rejection and can leave a scar．If we are too busy to give and receive love, we are too busy! Nothing is more important than responding with love to the cry for love from those who are near and precious to us, because there may be no chance at all as in the case of the little boy．What does the underlined phrase "poring over" mean?
| A．looking in on | B．looking out for |
| C．looking through | D．looking around |
The boy is going to give his father 40 kisses because ______．
| A．his father is very busy |
| B．this is the boy’ birthday |
| C．the boy wants to play with his father |
| D．this is his father’ birthday and he’s 40 years old |
What happened to the youngster later?
| A．His heart was broken． | B．He died unexpectedly． |
| C．He ran away from home． | D．He fell silent all the time． |
Which of the following would be the best title for the passage?
| A．A Love Story | B．Love Your Son |
| C．A Father and a Son | D．Love is a Two-way Street |
US bees operation keeping groups have been attacked seriously by so called Colony （群体）Collapse Disorder．Almost 1/2 of their worker bees have vanished during the past season．This disorder has also been reported in Israel, Europe and South America．Bees fly away from the hive and never return．Sometimes they are found dead; other times they are never found．Many crops and trees depend on pollination^^}） by bees to help them grow．
A new report says a virus may be at least partly responsible for the disorder in honey bee colonies in the United States．This virus is called Israeli acute paralysis virus．It was first found in Israel in 2004．lan Lipkin at Columbia University in New York and a team reported the new findings in Science Magazine．Doctor Lipkin says the virus may not be the only cause．He says it may work with other causes to produce the collapse disorder．
The team found the virus in colonies with the help of a map of honey bee genes that was published last year．They examined thirty colonies affected by the disorder．They found evidence of the virus in twenty-five of them, and in one healthy colony．The next step is further testing of healthy hives．
The researchers suggested that the United States may have imported the disorder in bees from Australia．They say the bees may carry the virus but not be affected．
The idea is that unlike many American bees, the ability of Australian bees to fight disease has not been hurt by the varroa mite．This insect attacks honey bees, which could make the disorder more likely to affect a hive．Australian bee producers object to these suspicions．
And some researchers suspect that bee production in the United States is down mainly because of the weather．Honey bees gather nectar from flowers and trees．The sweet liquid gives them food and material to make honey．But cold weather this spring in the Midwest reduced the flow of nectar in many flowers．Many bees may have starved．Dry weather in areas of the country could also be playing apart．
Wayne Esaias is a NASA space agency scientist who keeps bees in his free time．He lives in central Maryland, where he has found that flowers are blooming a month earlier than they did in 1970, which may be partly responsible for the disorder. Wayne Esaias is organizing a group of beekeepers to document nectar flow around the country.What is the author’s attitude toward the cause of this disorder?
| A．Doubtful. | B．Neutral. | C．Supportive. | D．Negative. |
The researchers found the virus sharply by .
| A．studying the published Science Magazine |
| B．researching the causes of bee death |
| C．examining some affected colony |
| D．exploring a connected chart |
The passage is mainly developed by .
| A．presenting the effect and analyzing its causes |
| B．making comparisons between two countries |
| C．providing data and examples |
| D．following the time order |
How many possibilities may be involved in the bee disorder according to the passage?
| A．Three | B．Four | C．Five | D．Six |
From the passage we can infer that .
| A．American bees are more likely to defend themselves against hurt from other insects than Australian ones |
| B．A collection of plants production in U.S ay be influenced by the bee disorder |
| C．Israeli acute paralysis virus should be responsible for the disorder |
| D．The solution to the disorder will be found eventually |
China is casting such a huge shadow on the United States that many Americans are struggling to learn Chinese in order to maintain their competitive edge, "Interest in learning Chinese among American youth and their parents has grown dramatically in the past five years," said Vivien Stewart at the Asia Society, a US group trying to bridge the gap between Americans and people of Asia and the Pacific．
China, the world’s most popular nation, is critical to the United States because it is a leading trader, consumer and investor- Its political influence is also rising across the globe．It has replaced the United States as the world’s largest consumer and become the second largest economy in the world after the superpower status and its telling effects politically, economically and culturally are driving the interest to learn the language, experts say．
From kindergartens to high schools, studies by the Asia Society show, there is a "rapid rise" in interest among pupils to study the Chinese language．
Even though the US State Department has stressed the Chinese language "critical " to national prosperity and security, the "current infrastructure （基础设施）to support recruitment （招生） of students and teachers as well as the growth of high quality programs is -badly inadequate," an Asia Society study says．The Society has set a target of having at least 5% of American high school students learning Chinese by 2015．"Millions of Chinese are learning English, but only 24,000 Americans are learning Chinese," said Andrew Corcoran of the San Francisco - based Chinese American International School．
The most popular languages after English in the United States at present are Spanish and French.The passage mainly tells the readers that _____,
| A．China is getting under a shadow from USA |
| B．American competitive edge is shaking |
| C．Americans object to learning Chinese |
| D．Chinese appeals to more Americans |
Based on the context, what does the underlined word "inadequate" （in Paragraph 5） mean?
| A．leading | B．interesting |
| C．disappointing | D．promising |
According to the text which of the following is TRUE?
| A．Culture can have an effect on exciting persons’ |
| B．USA has got the high quality current |
| C．Chinese ranks 4th on the American Language |
| D．Politics decides language studying |
What might be the most suitable title for this passage?
A, US Government Requires its People to Learn Chinese
B．Chinese Gains its Popularity with Most Americans
C．China’s Economy Helps to Spread its Language
D．Americans Show Interest Learning Chinese