The German poet and polymath Johann Wolfgang von Goethe pondered the question of how organisms develop in his scientific studies of form and structure immature plants and animals, a field he found and named morphology. His search for a single basic body plan (26)
across all life-forms led him to think about the prevalence of repeating (27)
segments in body structures. The spinal columns of fish, reptiles, (28)
birds and mammals, for instance, all are made of long strings of (29)
repeated vertebrae. Among invertebrates the growth of virtually identical segments is how striking: in earthworms, for example, even (30)
internal organs are repeated in serial segments. Likewise, the abdomen of flies and other insects are segmented, as are the (31)
successive wormlike articulations in crabs, shrimps and other crustaceans. To Goethe the evidence suggested that nature takes a building-block approach to generate life, repeating a basic element (32)
again and again to arrive at a complicated organism. The only glaring (33)
hole he could see in the theory was the apparent lack of sort of (34)
segmentation in the vertebrate heads. In 1790 he hypothesized that (35)
spinal vertebrate is modified during the development to form the skull.
答案:
26.found改为founded
27.repeating改为repeated
28.fish改为fishes
29.made后加up
30.去掉how
31.abdomen改为abdomens
32.generate改为generating
33.complicated改为complex
34.heads改为head
35.is改为are
