题目内容

20．As a general rule，it's important to ______ between effectiveness and absolute time commitments．（　　）
A．acknowledgeB．differentiateC．confirmD．justify

分析 一般说来，区别有效性和绝对的时间投入很重要．

解答 答案是B．本题考查动词词义辨析．A项表示"承认，致谢"；B项表示"区别"，differentiate between A and B 区别A和B；C项表示"证实"；D项表示"证明…有理"；根据句意和搭配判断，答案选择B项，其它选项不符合逻辑．

点评 本题考查动词词义辨析，考生在平时的学习中应注意积累相应的词汇和搭配，并牢记其意思．在做题时，将词义和题干相结合，从语法、句子结构尤其是句意上去判断，句意通顺，符合逻辑，即正确答案．

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Mars（火星）appears to be flowing with small streams of salty water,at least in the summer,scientists reported Monday."It suggests that it would be possible for there to be life today on Mars," NASA's science mission chief,John Grunsfeld,said at a news conference on September 28,2015.

The streams are about 12 to 15 feet wide and 300 feet or more long,scientists said."What we're dealing with is wet soil.Thin layers of wet soil,not standing water," said Aifred McEwen of the University of Arizona at Tueson,the principal scientist for the Mars Reconnaissance Orbiter's high-resolution imaging experiment.

Because liquid water is extremely necessary to life,the findings could have major possible effects for the possibility of Martian life.The researchers said further exploration is needed to determine whether microscopic life exists on the planet.

The presence of liquid water could also make life easier for astronauts visiting or living on Mars.Water could be used for drinking and for creating oxygen and rocket fuel.NASA's goal is to send humans there in the 2030s.

The evidence of flowing water consists largely of dark,narrow streaks（条痕）on the surface that tend to appear and grow during the warmest Martian months and fade the rest of the year.

Mars is extremely cold even in summer,and the streaks are in places where the temperature is as low as minus 10 degrees Fahrenheit.But salt can lower the freezing point of water and melt ice.

The source of the water is a mystery（神秘的事物）.Scientists noted it could be melting ice.It could be an underground aquifer（砂石含水层）,which is rock or sand that can hold water.It is possibly water vapor from the thin Martian atmosphere,or it may be a combination Michael Meyer,lead scientist for NASA's Mars exploration program, said the only definitive way for now to determine whether there's life on Mars is to collect rocks and soil for analysis on Earth-something a U.S.lander set for lift-off in 2020 will do.

1.What matters to the existence of liquid water on Mars?

A. The distance from the sun. B. The favorable climate.

C. The gravity of the earth. D. The salt in it.

2.According to John Grunsfeld,on Mars there seems to be .

A. salty water B. standing water

C. rocket fuel D. human beings

3.Scientists are uncertain about the of the water on Mars.

A. state B. source

C. temperature D. taste

4.What would be the best title for the text?

A. Streams of Water Spotted on Mars

B. Astronauts Will Land on Mars

C. NASA's Mars Exploration Program

D. A Breakthrough in the Exploration of Mars
11．The old lady who caught a bad cold complained that the doctor was ______ too much for the treatment given to her．（　　）
A．payingB．offeringC．spendingD．charging
8．Several years ago，when I worked in Los Angeles，I met one l0-year-old boy who wanted to study judo despite the fact that he had lost his left arm in a disastrous car accident．
The boy began lessons with an old Japanese judo master．The boy was doing well，so he couldn't understand why，after three months of training，the master had taught him only one move．
"Master，"the boy finally said，"Shouldn't I be learning more moves？"
"This is the only move you know，but this is the only move you'll ever need to know，"the master replied．
Not quite understanding，but believing in his master，the boy kept training．
Several months later，the master took the boy to his first tournament．Surprising himself，the boy easily won his first two matches．The third match proved to be more difficult，but after some time，his opponent （对手） became impatient and charged； the boy quickly and cleverly used his one move to win the match．Still amazed by his success，the boy was now in the finals．
This time，his opponent was bigger，stronger，and more experienced．For a while，the boy appeared to be beaten．Concerned that the boy might get hurt，the referee called a time-out．He was about to stop the match when the master interrupted．
"No，"the master insisted，"Let him continue．"
Soon after the match continued，his opponent made an obvious mistake：he dropped his guard．Instantly，the boy used his move to hit him to the ground．The boy had won the match and the tournament．He was the champion．
On the way home，the boy and the master reviewed every move in each and every match．Then the boy gathered the courage to ask what was really on his mind．
"Master，how did i win the tournament with only one move？"
"You won for two reasons，"the master answered．"First，"you've almost mastered one of the most difficult throws in all of judo．And second； the only known defense for that move is for your opponent to grasp your left arm．"
26．What happened to the boy in a terrible car accident？A
A．He lost one of his arms．
B，He met his judo master．
C．He was taught a lesson．
D．He learned an important move．
27．How did the boy feel after three months'training？B
A．Thoughtful and hopeful．
B．Puzzled，but believing．
C．Understanding and diligent．
D．Doubtful but happy．
28．Why did the master stop the referee to have a time-out in the final match？C
A．Because he was strict and cruel．
B．Because he thought it ridiculous．
C．Because he had faith in his student．
D．Because he wanted the boy to be beaten．
29．According to the passage the boy succeeded because ofC．
A．wide imagination and long-time practice
B．great ambition and sincere truthfulness
C．correct guidance and strong determination
D．serious concern and considerable character
30．What does the author want to tell us in the passage？D
A．There is nothing difficult in the world for us．
B．Never look down upon your opponent．
C．It is important to grasp chance in your life．
D．Weakness can become one's strength．
15．During my stay in Paris，my little son _______ some French by playing with the native boys and girls．（　　）
A．picked upB．picked outC．took upD．came across
5．As its economy is maturing，China's           a greater role in critical issues like climate and development．（　　）
A．definingB．assumingC．guaranteeingD．assuring
12．The company began to produce silk underwear last year，most of       imported to Europe．（　　）
A．itB．whichC．themD．those
9．"Don't you have any toys you want to share？"I asked my son during our church's Christmas toy drive．"What about all those things in your closet you haven't used in years？"
"I don't have anything，"he said．"We're so poor．"
We're only"poor"because we refuse to buy him the phone he wants for Christmas，which would also require a monthly texting charge．
"You're not so poor you have nothing to give，"I found myself saying to him，a phrase my mother often used on me．
At work the next day，one of my students said，"I didn't spell your name right，"as she handed me a Christmas gift-a box of chocolates．No wonder she hadn't spelled it right-I'had only worked at the center for a couple of months，and my name is not easy to pronounce，even in English，which is this woman's second language．
I hadn't expected a gift-I worked at an adult education center，where we dealt with people who struggle economically．When I was hired，my boss told me she tries to keep snacks around the center and cooks"stone soup"once a week，where whoever can bring something in does，because"You will hear growling bellies here．They give their food to the children before they themselves eat．"
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21．Who does the education center intend to help？D
A．Local people out of work
B．Adult students unable to spell
C．Immigrants on empty stomachs
D．Poor people eager for education
22．What can we learn from the text？B
A．Students learn to do chores at the center
B．The boy was unwilling to share his toys
C．The center offers chocolate as a Christmas gift
D．The author has high expectations of her students
23．What may be the best title for the text？A
A．Never Too Poor to Give
B．Never Too Late to Learn
C．A Second Chance to Seize
D．An Unexpected Gift to Treasure．
15．当前不少文学作品被改编成电影．有人选择看电影，有人则喜欢读原著．近来你班同学就以"Film or book，which do you prefer？"为题进行了热烈讨论，请你按照下列要点写一篇英语作文：
1、看电影：省时、有趣、易懂；
2、读原著：细节更多、语言优美；
3、我的看法及理由．
注意：
词数100左右；
文章题目和开头已为你写好（不记入总词数）．
参考词汇：original work或 book in the original（原著）
Film or book，which do you prefer？
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