[阅读判断]You think that the biggest threat to your health when taking a shower comes from slipping on a bar of soap? Well， guess again.
Q：This paragraph is a question to which the author hopes to have a positive answer from the reader.
答案解析：答案选B。这段话的意思是：你认为淋浴的时候对健康最大的威胁是踩在一块肥皂上而滑倒?好的，再猜一猜。这里的“再猜一猜”可以得知作者希望的不是一个positive answer，而是一个negative answer。
[填句补文]“Geochemists just want an intuitive sense of what‘s going on with the elements，” says Albert Galy from the University of Cambridge ________.
A、An earth scientist has rejigged the periodic table(元素周期表)to make chemistry simpler to teach to students.
B、The traditional periodic table was well drawn.
C、“I imagine contour lines would be good for undergraduates.”
D、But he has added contour lines to charge density， helping to explain which ions react with which.