Nature is full of examples of cycles. The seasons come and go in a cycle of spring, summer,
autumn, and winter. The days move in cycles of day and night. And all living things live, grow, and
die in cycles. For example, a sapling grows tall and strong. Then, one spring, the tree blossoms.
These flowers later turn into fruit or other types of seeds. When these seeds fall, they land on the
ground. The seeds can then grow. If the seeds get enough sunlight and rain, they will become young
trees. As the trees blossom, the cycle repeats itself.
Rain also occurs in cycles. Water evaporates from the oceans and rises into the sky. This
means that the ocean water is warmed by the sun and some of it rises into the air. When enough
water has gathered together, big rain clouds form. The clouds will release or drop the water. The
rain falls on land and ocean alike. When the rain falls on land, the ground soaks up some of it. If a
lot of rain falls, the runoff flows into streams, rivers, and lakes. This water, in turn, flows into the
oceans. When some of this water evaporates into the air, the cycle repeats itself. 【題組】41. This passage is mainly about .
(A) the growth of trees (B) the cycles of nature
(C) the falling of the rain (D) the seasons of the year
41.【題組】41. This passage is mainly about . (A) the growth of trees (B) the cycles of nature (C) the falling of the rain (D) the seasons of the year 答案：B 【題組】41。這一段文章主要是關於。 （A）樹木的生長 （B）the cycles of nature 自然的循環 （C）下雨 （D）一年中的季節 答案：B
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