英语一道阅读完型题 只看56题 写清楚理由

英语一道阅读完型题 只看56题 写清楚理由Anyone planning to go camping or hiking should first learn to recognize poison ivy,51_____ this plant can cause a rash resulting in reddened skin,an annoying itch,and painful blisters.A severe 52_____ can even force a person to remain in bed or become hospitalized.The best way to 53_____ these discomforts is to avoid the plant.Fortunately this plant is easy to 54_____.Whether it grows as a bush or a vine,the shape of it is always 55_____.Each leaf stalk has three glossy leaves,usually with jagged edges.In early spring the leaves are red,turning.And then the autumn comes,the leaves 56_____ to become bright red or orange.The poison ivy plant is found 57_____ everywhere in North America.Because many birds eat its berries,its seeds are 58_____ distributed.The plant loves the sun and flourishes along beaches,in fields,and by roadsides.It also grows 59_____ in light shade and is often found in parks and pine forests.However,in thick woods the story is different.It is not 60_____ there.That is because the leaves of the trees block out the sun,which the plant needs to grow.56.A.become B.change C.get D.avoid写下别的为什么不行!