Let us explore the possibilities for improvement．题目和参考答案——青夏教育精英家教网—

题目内容

7．Let us explore （探究） the possibilities （可能性） for improvement．

分析我们一起探究一下改进的可能性．

解答答案：explore
解析：根据括号内所给中文及首字母提示可知，本题考查explore"探索"一词；又因为本句含有let's do sth"咱们…吧"这一祈使句型，故直接填动词原形即可．综上，本题答案为：explore．

点评本题考查首字母填词，做此类题目时首先要弄清楚句子的意思，再根据句意及所给首字母反推需要填的词；另外还要注意所填词的形式．

练习册系列答案

18．A healthy amount of sunshine may be the secret to staying young．British scientists have discovered．
Vitamin D is produced naturally by the skin in response to（对…的反应） sunlight and may help to slow the ageing process and protect against heart disease，according to the study．
Researchers from King's College London studied 2，160women aged between 18and 79，looking at their telomeres---a biological marker of ageing found in DNA．As people get older，their telomeres get shorter and they become more susceptible（易受伤害的） to certain illnesses．
But the study found women with high levels of vitamin D had comparatively longer telomeres---a sign of being biologically younger and healthier．
The study suggests vitamin D may help to slow down the ageing（变老，老化） process of DNA，and therefore the ageing process as a whole．
Lead researcher Dr Brent Richards said，"These results are exciting because they show for the first time that people who have higher levels of vitamin D may age more slowly than people with lower levels of vitamin D．"This could help to explain how vitamin D has a protective effect on many ageing related diseases，such as heart disease and cancer．"
Professor Tim Spector，a co-author of the report，added，"Although it might sound absurd（荒唐的），it's possible that the same sunshine which may increase our risk of skin cancer may also have a healthy effect on the general ageing process．
Vitamin D made by the action of sunlight on the skin accounts for 90percent of the body's supply，but lower levels can also be got through food such as fish，eggs and breakfast cereals（粥）．
Other studies have suggested the vitamin plays a key role in protecting against cancer and heart disease．
25．A certain amount of sunshine helps people stay young becauseD．
A．people feel happy and energetic in the sun
B．sunshine protects people against heart disease
C．vitamin D makes one's skin look young and healthy
D．vitamin D may help to slow the ageing process．
26．From Brent Richards，we know thatD．
A．sunlight causes skin cancer to people with high level of vitamin D
B．the study generally has a healthy effect on the general ageing process
C．vitamin D can only be got from fish，eggs and breakfast cereals
D．the higher levels of vitamin D people have，the more slowly people may age
27．What can we infer from the passage？C
A．Telomeres are important as they are signs of ageing of the DNA．
B．Sunlight can be dangerous as it causes skin cancer．
C．Sunlight does more good than harm to our health．
D．Vitamin D can also be gained from food．
28．What is the best title of the passage？B
A．Secret of Staying Young
B．Vitamin D Helps Slow Ageing
C．Sunlight and Vitamin D
D．Sunlight and Health．

15．Seal（海豹） seizes raft
This seal really rocked the boat when he found himself an unusual place to hang out．After the seal came across a boat in the harbor where he lives，he fell inside and wouldn't budge for four days．
"One morning the seal just pulled himself aboard，"says Ed Stubbings，who owns the boat-turned-bed．Probably thinking the boat was a rock，the seal made himself at home．The seal didn't move an inch-----not even to eat or drink．
Stubbings was a little worried that the 500-pound animal might sink it．Luckily on the fifth day，the seal fell back into the water and swam off．
Alligator（短吻鳄）gets new tail
When Mr．Stubbs the alligator swims through his pool at the Phoenix Herpetological Society，he looks like any other gator-----except that his tail is made of rubber．Mr．Stubbs is the first alligator known to wear an artificial tail．
Mr．Stubbs was brought to the society nine years ago．"His tail was missing when he arrived，"says President Russ Johnson．Mr．Stubbs couldn't walk or swim properly．"We showed him how to swim in the water，"Johnson says．"But that hurt his back．"Later，the scientists used rubber to build an artificial tail attached to Mr．Stubbs's back legs．"Once we put the tail on him，he walked with ease，"Johnson says．
Dog delivers papers
Morgan started her"paper route"when she was young．One day as Morgan and her owner Bill set out on a walk，she spotted a rolled-up paper．To Bill's surprise，Morgan grabbed the object in her mouth，walked back to the house，and dropped it on the doorstep．Morgan enjoyed the activity so much that she wanted to deliver every paper she saw on her walks．
Now three-year-old Morgan brings the paper to her owner and neighbors，even in bad weather．"Morgan has a natural instinct（本能） to carry things with her mouth，"dog behaviorist Pat Miller says．"And she feels rewarded by the activity，so she keeps it up．"
15．The underlined word"budge"can be replaced byA．
A．move
B．change
C．swim
D．sleep
16．It can be learned that Mr．StubbsC．
A．injured his back
B．lost his tail and back legs
C．quickly got used to his new tail
D．was found by Ed Stubbings
17．What made Morgan deliver papers？D
A．Her owner Bill's praise．
B．Her neighbors'rewards．
C．Pat Miller's encouragement．
D．Her natural ability．

2．增加：在缺词处加一个漏词符号（∧），并在此符号下面写出该加的词．
删除：把多余的词用斜线（\）划掉．
修改：在错的词下划一横线，并在该词的下面写出修改后的词．
注意；　1．每处错误及其修改均仅限一词
2．只许修改10处，多者（从第11处起）不计分．
I went hiking to a mountain with my friend last summer．It was a good trip in the beginning and something unexpected happened halfway．One of my friends suddenly felt a terrible pain in his stomach and he couldn't move any far．Nobody knew how to deal it．One girl tried to call her mum over the mobile phone，but there is no signal in the mountain area．Lucky we had bought a tent with us．We put it up and let him to rest in it．After taken some pills，he drank some water and ate some food．After a while，I felt much better and we walked on．We all enjoyed us on the top of the mountain．

12．Without my permission （允许），no one can enter into my room．

19．There are three things that will get you ahead in life：good looks，smarts，and being considered as being smart．（36）BAnd unluckily most of us are not good-looking．Let's explore some different ways to become smarter．
（37）ACollege doesn't necessarily mean you'll be smarter，just educated．It means you'll be exposed to many different ideas and hopefully you'll learn how to think．Being able to think outside the box and for yourself are features smart people possess．
Read books and educational magazines．（38）GEducational magazines are a wealth of knowledge you can share with others，thus making you sound very smart．If you do watch television，try watching something that you can learn．
Expand your vocabulary．Try to learn one new word a week．It doesn't seem like much，but adding 52new words to your vocabulary will really make you appear much smarter．Subscribing（订阅）to vocabulary．com is a good start．（39）DThis way you're actually getting 365words a year，but that is usually more than most people can absorb．
Don't repeat everything people tell you until you know that it's true．（40）FThey hear a strange claim and they repeat it to the nearest ear．You can do much harm to your seek for being smart if you are known for giving bad information．

A．Go to college and get an education．
B．The first is God-given．
C．Get educated inside or outside college．
D．You will have a new word sent to your email address daily．
E．The programs actually provide you with information you can use．
F．Uneducated people and people not considered as being smart tend to do this．
G．Reading books works the brain out more than viewing television．

16．"Nature does not hurry，yet everything is accomplished．"-Lao Tzu
If you are in a city where everyone rushes，realize that you don't have to be like everyone else．You can be different．You can walk instead of driving in rush hour traffic．You can be on your iPhone or Blackberry less，and disconnected sometimes．Your environment doesn't control your life-you do．I'm not going to tell you how to give you a step-by-step guide to moving slower．（36）D
1．Do less．
Cut back on your projects，on your task list，on how much you try to do each day．Focus not on quantity but on quality．（37）F Save smaller，routine tasks for later in the day，but give yourself time to focus．
2．Have fewer meetings．
（38）B And they eat into your day，forcing you to squeeze the things you really need to do into small windows，and making you rush．
3．（39）A
When you do the important things with focus，without rush，there will be things that get pushed back，and that don't get done．And you need to ask yourself：how necessary are these things？What would happen if I stopped doing them？
4．Practice mindfulness．
Simply learn to live in the present，rather than things so much about future or the past．When you eat，fully appreciate your food．When you are with someone，be with them fully．When you are walking，appreciate your surroundings，no matter where you are．
Try these things out．Life is better when unrushed．（40）E

A．Start to put off or cancel the unnecessary．
B．Meetings are usually a"big waste of time"．
C．The world likely won't end if you don't pass one of the examinations．
D．But here are some things to consider and perhaps adopt，if they work for your life．
E．Remember the quote：if nature can get everything done without rushing，so can you．
F．Pick 2-3important things-or even just one important thing-and work on those first．
G．Give yourself more time to get ready and get there．

20．Hewas accompanied（陪伴） by his wife to the hospital yesterday．

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