近年来，人类探索太空热情空前高涨，研究的新成果与新进展令人振_爱下问搜题

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问题选择题

近年来，人类探索太空热情空前高涨，研究的新成果与新进展令人振奋。回答1～2题。

1、2007 年4月，美国宇航局发表了太空探测器拍摄到的太阳三维图像。这是人类首次从三维视角观测太阳活动。目前，人们对太阳活动的正确认识之一是[ ]

A．黑子增多增大时耀斑也频繁爆发

B．太阳活动会引发极光、流星雨、磁暴

C．太阳风是太阳活动的主要标志

D．光球层到日冕层依次出现黑子、太阳风

2、2007 年4月，欧洲天文学家首次发现一颗有生命迹象的太阳系外行星。该行星可能适宜生命存在的主要依据是[ ]

A．行星上有岩石

B．行星上有液态水与适宜的温度

C．行星的表面比较平坦

D．行星接受来自恒星的辐射能量

答案

1、A

2、B

完形填空

A strange thing happened to me last Sunday．It was such a beautiful day that I drove to go for a look in the country．
On the way back     , my car stopped．It was      gas on a lonely road far from a town．I decided to walk    I found someone who could      ome gas．
I had walked almost a mile       I finally found a house near the road．I was glad to see it,        it was getting dark．
I knocked at the door and a little old lady    long white hair answered．She said,
“I      waiting for you for a long time．Come in．    is almost ready．”“But I only come      some gas,”I answered．I couldn’t imagine      she was talking about．“Oh, Alfred! Gas? You used to like tea．”
I quickly explained that my car was out of gas,       she didn’t seem to hear me．She just      calling me Alfred and talking about how long      since she had seen me．She was acting very strangely and I was anxious to       ．    she went to get tea, I went out of the house as fast as I could．
Fortunately, there was another house down the road and I was able to buy the gas I needed．When I told the man about my       he said,“Oh, that’s Miss Emily．She lives    herself in that big house．She’s out of her mind, but she wouldn’t hurt      ．She is still waiting for the man she was supposed to marry thirty years ago．The day before their wedding he left home and      came back because of the war．”

D．running out

A．had it been

B．it had been

C．has it been

D．it has been

问答题简答题

何谓ABO血型正定型和反定型?