Why was the application of thermoelectric materials a failure in the past、

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• 1The following methods can be adopted to make electricity from sunlight EXCEPT         .

  A.putting a panel of solar cells into use

  B.concentrating sun’s rays with mirrors

  C.creating a solar-thermoelectric device

  D.building a practical solar prototype

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• 2---Could you help me take care of my pet dog on the 19th、--- I’m afraid I’m not          that day.

  A.vacant

  B.sufficient

  C.available

  D.convenient

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• 3---With the country’s pension fund gap becoming wider than ever, retirement age should be postponed immediately.---Easier said than done.          we take all factors into account, we shall be faced with some other social problems.

  A.Unless

  B.Until

  C.When

  D.Once

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• 4--- We had          really smoggy December this year.--- I can’t remember          winter when air was polluted so severely.

  A.a; /

  B.a; the

  C.the; the

  D.a; a

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• 5On 5 December 2013, China Central Bank prohibited financial institutions from handling Bitcoin transactions,  _____  to regulate the virtual currency.

  A.moved

  B.to move

  C.having moved

  D.moving

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• 6What do we learn about social media from the first Q and A、

  A.It is illegal to keep track of personal privacy on Facebook.

  B.Personal privacy is inaccessible online with control customized.

  C.People tend to ignore privacy provided it is blocked purposefully.

  D.C.People tend to ignore privacy provided it is blocked purposefully.D.We need someone to remind us constantly of our privacy onlin

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• 7Which of the following is appropriate about using social media、

  A.Sending texts to consult a doctor for surgery

  B.Carrying on casual conversations via emails.

  C.Emailing your boss with emoticons for promotion.

  D.Writing a formal invitation for a dress-up event.

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• 8According to the passage, how would you make it known that you have won a scholarship to Harvard、

  A.Arranging for a social gathering to celebrate it.

  B.Informing your teachers who may help you spread.

  C.Telling your parents before posting it on your blog.

  D.Sending everyone a message privately to share it.

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• 9Why did the woman cry when seeing her son had broken the azalea bush、

  A.Because she could not tolerate the harm to it.

  B.Because it made her bad mood even worse.

  C.Because her son did not ask her for permission.

  D.Because she wanted to hand it to her husband.

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• 10The writer wanted to hide in the mountain cave probably for the reason of         .

  A.feeling fed up with her endless daily housework

  B.her husband’s failing to fix the machine in time

  C.boring daily routine with a feeling of lack of love

  D.her hoping to seek happiness in a brand new place

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