Plants are very important living things. Life could not go on if there were no plants. This is   1  plants can make food from air, water and sunlight. Animals and men   2 make food from air, water and sunlight. Animals get their food by eating plants and animals   
 3   Therefore(因此), animals and  men need plants in order to   4  This is the reason(原因) why we find that there are so many plants around us.
If you look carefully at the plants around you   5   find that there are many kinds of plants. Some plants are large   6   others are small. Most plants are green..
Some plants have many small leaves. Others have only   7  large leaves. There are many kinds of leaves. Leaves are of  8    shapes(形狀) and colors.
Leaves are also different in other ways. Some leaves have short leaf stalks(葉莖)while others have long leaf stalks. Still others have  9   stalks at all. The edges(邊)of leaves are also different. Some leaves have smooth(光滑的)edges. Some have wave(波狀的) edges    10   the teeth of saw(鋸).
小題1:
A．whyB．becauseC．howD．that
小題2:
A．don’tB．notC．cannotD．can
小題3:
A．tooB．eitherC．a(chǎn)lsoD．a(chǎn)lready
小題4:
A．eatB．liveC．haveD．get
小題5:
A．a(chǎn)re going toB．mayC．certainlyD．will
小題6:
A．whenB．yetC．a(chǎn)ndD．while
小題7:
A．a(chǎn) littleB．a(chǎn) fewC．littleD．few
小題8:A. much          B. different         C. same            D the same
小題9:
A．notB．noneC．neitherD．no
小題10:
A．likeB．a(chǎn)sC．a(chǎn)s ifD．seem

小題1:B
小題2:C
小題3:A
小題4:B
小題5:D
小題6:D
小題7:B
小題8:B
小題9:D
小題10:A

小題1:根據(jù)前后句子的關(guān)系為因果關(guān)系，故選B，表示因為的意思。
小題2:根據(jù)上下文的內(nèi)容可知答案為C，表示不能夠做某事，故選C
小題3:too 表示也時，位于句子末尾，故選A
小題4:in order to ，表示為了做某事，根據(jù)上下文的意思，可知答案為B，表示生活的意思。
小題5:在if 引導(dǎo)的從句中If you look carefully at the plants around you   5   find that there are many kinds of plants.如果主句為一般將來時，從句用一般現(xiàn)在時代替將來時。
小題6:while 在此表示然而的意思，也含有與此同時的意思，故選D
小題7:only a few ，表示只有一點點，故選B
小題8:根據(jù)前文的內(nèi)容，可知答案為B，表示不同的，故選B
小題9:not ···at all ，表示一點兒也不，故選D
小題10:like 表示像···一樣，為介詞，符合題意。
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