Question

Plants are very important living things. Life could not go on if there were no plants. This is1plants can make food from air, water and sunlight. Animals and men2make food from air, water and sunlight. Animals get their food by eating plants and animals
3Therefore(因此), animals and men need plants in order to4This is the reason(原因) why we find that there are so many plants around us.
If you look carefully at the plants around you5find that there are many kinds of plants. Some plants are large6others are small. Most plants are green..
Some plants have many small leaves. Others have only7large leaves. There are many kinds of leaves. Leaves are of8shapes(形状) and colors.
Leaves are also different in other ways. Some leaves have short leaf stalks(叶茎)while others have long leaf stalks. Still others have9stalks at all. The edges(边)of leaves are also different. Some leaves have smooth(光滑的)edges. Some have wave(波状的) edges10the teeth of saw(锯).

1. 1.
   1. A.
      why
   2. B.
      because
   3. C.
      how
   4. D.
      that
2. 2.
   1. A.
      don’t
   2. B.
      not
   3. C.
      cannot
   4. D.
      can
3. 3.
   1. A.
      too
   2. B.
      either
   3. C.
      also
   4. D.
      already
4. 4.
   1. A.
      eat
   2. B.
      live
   3. C.
      have
   4. D.
      get
5. 5.
   1. A.
      are going to
   2. B.
      may
   3. C.
      certainly
   4. D.
      will
6. 6.
   1. A.
      when
   2. B.
      yet
   3. C.
      and
   4. D.
      while
7. 7.
   1. A.
      a little
   2. B.
      a few
   3. C.
      little
   4. D.
      few
8. 8.
   1. A.
      much
   2. B.
      different
   3. C.
      same
   4. D.
      the same
9. 9.
   1. A.
      not
   2. B.
      none
   3. C.
      neither
   4. D.
      no
10. 10.
    1. A.
       like
    2. B.
       as
    3. C.
       as if
    4. D.
       seem

Answer 1

BCABD DBBDA
1.根据前后句子的关系为因果关系，故选B，表示因为的意思。
2.根据上下文的内容可知答案为C，表示不能够做某事，故选C
3.too 表示也时，位于句子末尾，故选A
4.in order to ，表示为了做某事，根据上下文的意思，可知答案为B，表示生活的意思。
5.在if 引导的从句中If you look carefully at the plants around you   5   find that there are many kinds of plants.如果主句为一般将来时，从句用一般现在时代替将来时。
6.while 在此表示然而的意思，也含有与此同时的意思，故选D
7.only a few ，表示只有一点点，故选B
8.根据前文的内容，可知答案为B，表示不同的，故选B
9.not ···at all ，表示一点儿也不，故选D
10.like 表示像···一样，为介词，符合题意。