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标题: 六级练习2014.01.04 [打印本页]

作者: Rebecca949    时间: 2014-1-6 10:11     标题: 六级练习2014.01.04

[audio]http://sound.yywz123.com/tingbbs/cet6/cet620140104.mp3[/audio]



OK, in the last class we talked about the classification of trees and we ended up with a basic description of angiosperm. You remember that (1)_____________. The common broad leaf trees we have on campus fall into this category. But our pines don't. Now I hope you all followed my advice and wore comfortable shoes because as I said today we are going to do a little field study. (2)________________ we have in front of us. I'm sure you've all noticed that this big tree next to Brett Hall. It's a black walnut that must be 80 feet tall. As a matter of fact there is a plaque identifying. (3)___________________. And from here we can see the beautiful archway of trees at the commons. They are American elms. The ones along the commons were planted when the college was founded 120 years ago. They have distinctive dark green leaves that (4)____________. I want you to notice the elm right outside the Jackson Hall. Some of the leaves have withered and turned yellow, maybe due to Dutch elm disease. Only a few branches seem affective so far but if this tree is sick it'll have to be cut down. Well, let's move on and I'll describe what we see as we go.





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作者: laura6688    时间: 2014-1-7 11:15

those are plants whose true flowers and seeds thwt developed into fruids
to get started let me descripb a couple of broad trees
It is the tallest worrer in this date
look lock of sight because the two sides of the leaves are any coin
作者: susan.sui    时间: 2014-1-7 11:57

those are plants with true flowers and seeds that develop into fruits
to get started , let me describe a couple of broad leaf trees
it is the tallest black walnut in the state
look * because the two sides of the leaf are unequal
作者: 伊梦青依    时间: 2014-4-16 11:09

those are plants with true flowers and    that develop into fruits




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