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W(xu)W(wng) > иԇ > иԇxAӖ

иԇxAӖ

l(f)r(sh)g:2017-08-02݋

ӖиxĻA?СѼиԇxAӖx

P(gun)ھӌӴ߉݋P(gun)ϵͻƷ

1|TPOԭ

ֱӶ|TPOx˽¾ӵĶcsܶr(sh)҂(hu )ͨ^(gu)һЩAn(¸ȵń(li)aӢZ(y)(Ʒn)A)J鲢ȡ҂ȫTPOžز侫xƽĶՓиy߀DZ^m(@҂횰}@(g)h(hun)޳)ȫԱӢZ(y)Amеĺ

2 ՌW(xu)ƷL(chng)y

(zhun)T(mn)õTPOL(chng)yزھеP(gun)ϵ~R߉݋~RԼՌW(xu)Ʒ(li)TPOxԭı

+ƪ½Y

҂(li)+ƪµĽYڴ֮ǰ҂(li)һ±оӵ˼(1)@ȻCDz(dng)(2)ͨ^(gu)ͨ^(gu)w(3)C߀[زסIJ(dng)(4)c...ӲͬһֻL~(y)L(chng)ಢ(5)C˽ͨ^(gu)ʯӛ䛫@õ(6)ߵIJ(dng)()CôB(li)?(7)ֱܳʬF朽ӵĻʯűl(f)F

ǰڏ{CIJ(dng);ľ_(ki)ʼ漰Դ(wn)};f(shu)˽Դ(wn)};;oԵO(wn);߾˽;Ĵ_Jʹ_

ԶY֞ɲ֣һCIJ(dng);ͨ^(gu)ʯ(li)˽C“(lin)ϵƪ(̎ƪ±F})͸@CԴCIJ(dng)(҂Ҫͨ^(gu)ʯJRC)P(gun)I~ҲCmammalknow it through fossil

}ƪJRķ

1W(xu)(hu )Д혳D(li)еȻ߉݋P(gun)ϵ

2W(xu)(hu )ľc֮gP(gun)ϵBӆλ(li)^(gun)

3һЩõ߉݋P(gun)ϵ~RP(gun)ϵDQж

4ĹնP(gun)ϵD

ӌӴθ½Y˽ҿɂ(g)}ĿԾͿԅӻ(dng)҂(hu )ڴxxe2λͳһġ~RփԡŶ

1. In paragraph 1, what does the author say about the presence of a blowhole in cetaceans?

It clearly indicates that cetaceans are mammals.

It cannot conceal the fact that cetaceans are mammals.

It is the main difference between cetaceans and land-dwelling mammals.

It cannot yield clues about the origins of cetaceans.

2. Which of the following can be inferred from paragraph 1 about early sea otters?

It is not difficult to imagine what they looked like.

There were great numbers of them.

They lived in the sea only.

They did not leave many fossil remains.

xAҎ

1 oԼһ(g)_schedule

Գÿ쾫xՌW(xu)Ʒ(li)TPOԭ얹~y~ӽYԼƪԳֶʮһ(hu )ͻwM(jn)Ŷ~

2 

oԼһ(g)W(xu)ÿһΕr(sh)gһ(g)yԇzһԼijɹM(jn)͹ĄԼԳȥ;ԼĆ(wn)}~

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