She to her parents since she left home last month．( )A．hasn't writtenB．didn't writeC．doesn't writeD．wasn't writing 题目和参考答案——青夏教育精英家教网—

题目内容

5．She__________ to her parents since she left home last month．（　　）

A．

hasn't written

B．

didn't write

C．

doesn't write

D．

wasn't writing

分析自从她上个月离开家，她就没有给父母写过信．

解答答案为A．根据"since she left home last month"可知not write这个动作从过去延续至现在，此题用现在完成时．所以答案为A．

点评考查现在完成时．现在完成时有一些固定的时间状语，如for，since，up to now，so far等．

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3．There was once a captain who loved money so much that he cheated his sailors at the end of every voyage and took their wages．
On the last day of one voyage，the ship was in a small port．It was winter time，and the sea was very cold，so the captain said to his sailors，"If one of you stays in the water during the whole night，I will give him my ship．But if he comes out before the sun appears，I shall get his wages．"
The sailors had heard about the captain's cheating，so they didn't trust him．But then one of them，who thought that he was cleverer than the captain，said that he would do it．He got into the water，and，though it was very cold，he stayed in it．When it was nearly morning，some fishermen lit a fire on the shore about half a mile away．
"You are cheating，"the captain said to the sailor．"The fire's warming you．"
"But it's half a mile away!"said the sailor．
"A fire's fire，"answered the captain．"I have won．"
The sailor came out of the water，and said，"Perhaps you think that you are clever because you have won my wages，but you can't cook a chicken．"
"I can，"answered the captain．
"If you cook this chicken，"said the sailor，"I shall work for you without wages for seven years，but if you can't，you will give me your ship．"
The captain agreed，took the chicken and said，"Where's the fire？"
"There it is，"answered the sailor．"On the shore．"
"But it's half a mile away，"said the captain angrily．
"'A fire's fire，'you said，"answered the sailor．"If it is enough to warm me in the water，it is enough to cook your chicken．"
41．The captain got the sailor's wagesA．
A．by cheating him
B．and kept the money for future use
C．to buy a chicken for himself
D．and said he would return the money soon
42．Which of the following statements is TRUE？B
A．All the sailors refused to get into the water because it was too cold．
B．It was the sailor who was cleverer．
C．The captain succeeded in cheating the sailor．
D．The captain knew that the fire the fishermen made was enough to warm the sailor in the water．
43．The captain insisted that the fire was warming the sailor because heC．
A．wanted to keep his promise
B．didn't believe the sailor's success
C．didn't want to lose the bet
D．wanted to show his cleverness
44．Which of the following statements is NOT TRUE？D
A．The sailors didn't trust the captain．
B．The sailor didn't get out of the water before the sun appeared．
C．The captain failed to cheat the sailor this time．
D．In order to help the sailor in the water，the fishermen made a fire．
45．What is the title of the story？C
A．How a Captain Cheated His Sailor
B．How a Sailor Got a Ship
C．A Fire Is Fire
D．A Brave Sailor．

20．General speaking，the more expensive the camera is，the better its quality will be．General改为Generally．

7．Childhood obesity（41）is considered（consider） one of the most serious health challenges of the 21st century．Obesity can（42）harm（harmful） nearly every organ in a child's body---heart and lungs，muscles and bones，kidneys as well as the hormones（荷尔蒙）（43）that/whichcontrol blood sugar and puberty（青春期）．What's worse，young people who are overweight or obese are likely to remain so even when they grow into adulthood，（44）increasing（increase）the risk of developing disease and disability later in life．
Globally，an（45）estimated（estimate） 43million preschool children under the age of 5were overweight or obesity in 2010，a 60% increase since 1990．The problem affects countries rich and poor，and places the greatest burden（46）onthe poorest：of the world's 43million overweight and obese preschoolers，35million live in developing countries．By 2020，if the current epidemic（盛行） continues，9% of all preschoolers will be overweight or obese---nearly 60million children．
Obesity rates are higher in adults（47）thanin children．But in relative terms，the U．S．，Brazil，China，and other countries have seen the problem arise more（48）rapidly（rapid） in children than in adults．
Of course，some regions still struggle hard with child（49）hunger（hungry），such as Southeast Asia and Africa．But globalization has made（50）theworld wealthier，and wealth and weight are linked．

10．I wonder what's happened to John．He _______ around for at least two weeks．（　　）

17．What are feelings for？Most nonscientists will find it a strange question．Feelings justify themselves．Emotions give meaning and depth to life．They exist without serving any other purposes．On the other hand，many evolutionary biologists acknowledge some emotions primarily for their survival function．For both animals and humans，fear motivates the avoidance of danger，love is necessary to care for the young，and anger prepares one to hold ground．But the fact that a behavior functions to serve survival need not mean that．Other scientists have regarded the same behavior as conditioning and learned responses．Certainly reflexes（反射） and fixed action patterns can occur without feeling or conscious thought．A baby seagull pecks（啄） at a red spot on the bill（喙） of its parent．The seagull parent feeds its baby when pecked on the bill and the baby gets fed．The interaction need have no emotional content．
At the same time，there is no reason why such actions cannot have emotional content．In mammals that have given birth including humans，milk is often released automatically when a new baby cries．This is not under intended control but it is reflex．Yet this does not mean that feeding a new baby is exclusively reflex and expresses no feeling like love．Humans have feelings about their behavior even if it is conditioned or reflexive．Yet since reflexes exist and conditioned behavior is widespread，measurable，and observable，most scientists try to explain animal behavior by using only these concepts．It is simpler．
Preferring to explain behavior in ways that fit science's methods most easily，scientists have refused to consider any causes for animal behavior other than reflexive and conditioned ones．Scientific orthodoxy （正统） holds that what cannot be readily measured or tested cannot exist，or is unworthy of serious attention．But emotional explanations for animal behavior need not be impossibly complex or unstable．They are just more difficult for the scientific method to check on in the usual ways，so cleverer and more skillful approaches are called for．Most branches of science are more willing to make successive evaluation of what may prove ultimately unknowable，rather than ignoring it altogether．

72．The example of the baby seagull pecking the parent's bill is used to support thatB．
A．it is an inborn ability for adults to look after the young
B．behaviors can be learned and involve no emotions
C．emotions are of great importance for survival
D．it takes time for animals to be conditioned
73．Which of the following can be learned from the passage？C
A．Breast-feeding a baby is conditioned or reflective but have no emotional connection．
B．Reflexes and conditioning will lead to a better understanding of animal emotions．
C．Scientists usually apply reflexes and conditioning in explaining animal behaviors．
D．Many evolutionary biologists believe that emotions are to some degree for survival．
74．To study animal emotions，scientists shouldC．
A．analyze human emotions
B．distinguish what is emotional
C．set up improved experiments
D．learn from animal behaviorists
75．What is the author's main purpose of writing this passage？A
A．To illustrate that emotions are worth our attention．
B．To compare human emotions with animal emotions．
C．To discuss the importance and usefulness of emotions．
D．To explain what reflexive and conditioned behaviors are．

14．Music lessons in early childhood bring about changes in the brain that  could improve its performance far into adulthood，researchers say．
  Brain scans of young adults showed those who had formal musical training before seven had thicker brain areas dealing with hearing and self-awareness．
  The findings note how brain development can be influenced by the age when children start to learn a musical instrument，and how those changes can continue into later life．
"Early musical training benefits kids more than just making them enjoy music．It changes the brain，which could bring about cognitive advances as well，"said Yunxin Wang of Beijing Normal University．
"Our results suggest it's better to start musical training before seven，which agrees with what most piano teachers recommend，"she added．She hoped the results might help parents decide when was the best for their children to learn an instrument．
   The brain's cortex（皮层） plays a leading role in one's abilities，from thought and language to memory and attention．The area matures rapidly in the early years of life，and its development could be affected more if a person starts musical training before it fully matures．
   Wang studied 48 Chinese students aged between 19 and 21 who had received formal music training for at least a year sometime between the ages of 3 and 15．Each had a scan to measure the thickness of the brain's cortex．
   After considering sex and the number of years spent having music lessons，Wang found that musical training that started before seven appeared to thicken areas of the brain involved in language skills and executive function，which is a person's ability to plan and accomplish tasks．
"We're not sure why these changes occur，but a reasonable explanation is that early starters might depend more on hearing clues（线索） when learning music，since it might be more difficult for younger children to read music，"Wang said．
32．According to the researchers，musical training before the age of seven canA
A．contribute to future work．
B．create a successful life
C．develop all-round abilities
D．deal with puzzling problem
33．When conducting the research with the students，WangD
A．tested their language abilities
B．watched their musical performances
C．focused on school behavior and achievements
D．measured the thickness of the brain's cortex
34．It can be inferred from the last paragraph thatB．
A．it must be hard for kids to read music
B．kids are more likely to learn music by hearing
C．Wang's explanation has been the most reasonable
D．Wang will research into the reasons for the brain change
35．For what purpose does the author write the text？C
A．To describe the development of brain．
B．To challenge the previous discoveries．
C．To present the findings of the research．
D．To give advice on how to learn music．

15．-What's the weather like？Is it raining？
-Not at the moment，but it _______ rain later．（　　）

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