17.To solve a murder case,the police usually starts with clues.To ask anyone if they A B C have seen anything unusualnear the scene of the crime really helps.
18.As Earth rotates in a counterclockwise (逆時針的) direction,it shapes ocean currents (洋流). A B Movement of water,as well as winds,produce different weather around the globe.
九. Complete the passage with the help of the first given letters. (0.5’ x 10 = 5’)
58.Straight or arched (彎的),thick or thin --- eyebrows come in many s(1)
and sizes.But what are eyebrows even for?They don't keep us warm like our hair,or help us b(2)
like our nose.So why do we have them at all? Researchers from the University of York in the UK believe that eyebrows helped us c(3)
better when we were still evolving (進化). Early humans had large brow ridges (眉骨).This helped them show their strength.Later,as the human face evolved to become smaller and flatter,our eyebrows allowed us to express more complex emotions,as well as b(4)
understand others' emotions,the Guardian reported.A quick flash of the eyebrows,for example,is a s(5)
that someone is willing to interact (互動) with others,w(6)
pulling our eyebrows up in the middle is an expression of sympathy (同情),Penny Spikins from York University told the The Daily Telegraph. If you still find this hard to understand,just draw a simple face and draw a line a(7)
the eyes.You can draw lines in different shapes and directions.You will find it is very easy to show anger,f(8)
,or surprise in a face. But this is not the only purpose of our eyebrows.They can also p(9)
our eyes.Their arched shape can help to move rain or sweat around to the sides of our faces,k(10)
our eyes dry,the BBC reported.Together with our eyelashes (眼睫毛),eyebrows can also help to keep dust and other things out of our eyes. Some researchers believe that if we didn't have eyebrows,we would have evolved some other facial feature to perform the same functions (功能).That could make us look quite different.