MOOC，a massive open online course， (aim)at providing large-scale interactive participation and open access via the web．MOOCs first made waves in the fall of 2011，when Professor Sebastian Thrun from Stanford University opened his graduate-level artificial
(intelligent)course up to any student anywhere，and 160，000 students in more than 190 countries
(sign)up．This new kind
online classes is shaking up the higher education worid in many ways．Since the courses can be taken by hundreds of thousands of students at the same time.
number of universities might decrease dramatically．Perhaps the most striking thing about MOOCs，many of
are being taught by professors at famous universities，is that they’re free．This is
(certain)good news for cash-strapped students．
There is a lot of excitement and fear surrounding MOOCs．While some say free online courses are a great way (increase)the enrollment of minority students，others have said they will leave many students behind．Some critics have said that MOOts promote an unrealistic one-size-fits-all model of higher education
that there is no replacement for true dialogues between professors and their students．After all，a brain is not a computer．We are not blank hard drives
(wait)to be filled with data．People learn from people they love and remember the things that arouse emotion．
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Scientists have discovered that(stay) in the cold could help us lose weight． Researchers at the University of California found that exposure to the cold increases levels of a protein that helps form brown fat--the type of fat that produces heat and keeps us warm． Brown fat burns energy,
helps us lose weight． White fat stores extra energy, which results
weight gain． The researchers said that because air conditioning and heating give us constant,
(comfort) temperatures, our body’s need for brown fat has decreased． They found that: “Outdoor workers in northern Finland who
(expose) to cold temperature have
significant amount of brown fat when
(compare) to same-aged indoor workers.” The research was conducted on two different control groups of mice．
group was injected with the protein that helps create brown fat． This group later gained 30% less weight after both groups were fed high-fat diets． The researchers say this could be good news in the fight against obesity． People who are obese have
(low) levels of brown fat than thinner people． Head researcher Hei Sook Sul said, “This protein could become an important target for research into the treatment and prevention of obesity and obesity-related diseases.” She added, “If you can somehow increase levels of this protein, you could
(possible) lose more weight even if eating the same amount of food.”
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What should you do if you are not able to sleep? The best thing is to try to avoid bad habits．____ you always go to bed and get up at about the same time，this will set a __
__ (health)rhythm in your life．Don’t drink caffeine drinks in the evening．Smoking and alcohol can also keep you awake．You may have trouble__
__ (sleep) if you have a heavy meal just before you go to bed．
You may also find it difficult____ (get)to sleep if you have a problem or something else on your mind．This is __
__ you need to relax．As you lie in bed，tense the muscles in your feet and then relax _
__．Continue up the body，tensing and relaxing the muscles until you reach the heaD． Start with the feet again if you are still tense．If you __
__ (think) about a problem or about something exciting that is going to happen the next day，get up and write about it．That will help to take it off your mind．You can also get up and read，but be sure to choose__
__ book that is not too difficult．__
__，you may get so interested that you won’t want to go to sleep even when you feel sleepy．
Sleep welt and have sweet ____ (dream)!
Time flies! This isthird year that I have been in this school．In the past two and a half years，our school
(organize) many activities．What impressed me
(much) was an activity
(call)“Learning to Farm”．On an autumn afternoon，we
(send) to a farm
we learnt to plant potatoes
(be) in the city for such a long time，we were so happy to go to the countryside．After
(spanide) into three groups，we started to work．Some cut potatoes
pieces，and_
put the pieces of potatoes into the holes and put the earth back．
The Nobel Peace Prize was awarded on FridayIndia's Kailash Satyarthi and Pakistan's Malala Yousafzai for their struggles
the suppression（压迫）of children and for young people's rights，
(include) the right to education．
Yousafzai came to (globe) attention after she
(shoot) in the head by the Taliban two years ago forher efforts
(promote) education for girls in Pakistan．
Through her heroic struggle，Yousafzai has become a(lead) spokeswoman for girls' rights to education．According to the Nobel committee，at 17 she's the youngest ever peace prize winner．“I'm proud that I'm the first Pakistani or the first young woman
gets this award，” she said in Birmingham，England．
She doesn't believe that she deserves the award but considers an encouragement to continue her campaign．Awarding the Peace Prize to a Pakistani Muslim and an Indian Hindu
(give) a message to people of love between Pakistan and India，and between different religions．
Once upon a time a farmer had a dog and a rabbit．One day he organized a competition between his dog and his rabbit．He dug a hole in one of his biggest fields，and hid a carrot and a bone in it．He wanted to see animal would find them first．
The (cheer) and optimistic rabbit threw himself into looking for the carrot，
(dig) here and there，totally convinced that he would find it．But the dog，after sniffing around for a bit，
(lie) down and began to complain about how difficult it was to find one bone in such a big field．
The rabbit dug for hours，and with every new hole the dog complained even more about how difficult this (be)，even for the rabbit．
the rabbit thought that each hole dug was one hole less that needed digging．When there was no place in the whole field
(leave) to dig，the rabbit dug a tunnel right to
the dog had been lying all the time．There he found the carrot and the bone．
This is how the dog lost the game．He had come to right place at the very beginning but failed to find the bone
he only complained and didn't try at all．
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