3．-Hi，Tom．I called you yesterday evening，but nobody answered．Where did you go？
-Oh，I'm sorry．I _________ an interesting book in my study．（ ）
-Oh，I'm sorry．I _________ an interesting book in my study．（ ）
| A． | was reading | B． | read | C． | will read |
2．-Which do you think is _________，floods，droughts or earthquakes？
-Earthquakes，of course．（ ）
-Earthquakes，of course．（ ）
| A． | serious | B． | more serious | ||
| C． | the most serious |
1．-I enjoy the beauty of nature in the countryside．
-Me，too．And the air is _________ than that in the city．（ ）
-Me，too．And the air is _________ than that in the city．（ ）
| A． | clean | B． | much fresh | C． | much fresher |
20．-My daughter could play the piano at the age of four．
-_________ clever girl!（ ）
-_________ clever girl!（ ）
| A． | What | B． | What a | C． | How |
19．-What does this word mean，Li Ping？
-Sorry，I don't know．You can _________ the word in my English dictionary．（ ）
-Sorry，I don't know．You can _________ the word in my English dictionary．（ ）
| A． | talk about | B． | change into | C． | look up |
18．-George plays the guitar very well．Who taught him？
-He taught _________．（ ）
-He taught _________．（ ）
| A． | herself | B． | myself | C． | himself |
17．-Shall we go out for a picnic this Sunday？
-_________（ ）
-_________（ ）
| A． | Good idea． | B． | Best wishes． | C． | That's right． |
16．
With such a large rise on mobile phone users around the world over the last 10
years，many people are worried about（46）C possible problems．For some time，
scientists have been thinking that mobile phones could lead to cancer．But so far，there is no strong evidence （证据）for this．
The Norway Institute of Public Health and the UK's Health Protection Agency both released some studies last year．They said that there was no link found between mobile phone radiation（辐射） and cancer．
However，many mobile phone users often （47）Eheadaches，dizziness （头晕）and even feeling sick．Last October，a court case （诉讼案件）in Italy said that heavy mobile phone usage had caused brain cancer in one man．
He had used a mobile phone up to six hours a day for 12 years．
But the biggest problem with research now is that it is too early to reach conclusions．Mobile phones have only been（48）A used since the 1990s，and cancers can take many years to develop．
There is also still a strong argument that mobile phones are a major risk for children．"Inner child，small central brain structures are going to be exposed（暴露），"said Dr．Annie，"Besides，kids have a skell（头盖骨） which is（49）D．
There is much more water in their brain，so there are many reasons that they take in more of the same radiation．"
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| A．widely B．suffer C．health D．thinner E．complain of |
years，many people are worried about（46）C possible problems．For some time，
scientists have been thinking that mobile phones could lead to cancer．But so far，there is no strong evidence （证据）for this．
The Norway Institute of Public Health and the UK's Health Protection Agency both released some studies last year．They said that there was no link found between mobile phone radiation（辐射） and cancer．
However，many mobile phone users often （47）Eheadaches，dizziness （头晕）and even feeling sick．Last October，a court case （诉讼案件）in Italy said that heavy mobile phone usage had caused brain cancer in one man．
He had used a mobile phone up to six hours a day for 12 years．
But the biggest problem with research now is that it is too early to reach conclusions．Mobile phones have only been（48）A used since the 1990s，and cancers can take many years to develop．
There is also still a strong argument that mobile phones are a major risk for children．"Inner child，small central brain structures are going to be exposed（暴露），"said Dr．Annie，"Besides，kids have a skell（头盖骨） which is（49）D．
There is much more water in their brain，so there are many reasons that they take in more of the same radiation．"