Dandelions(蒲公英)arecommonweedsthatgrowinmanyplacesaround...
问题详情:
Dandelions(蒲公英) are common weeds that grow in many places around the world. In different ___21___, dandelions take different shapes. Scientists have long ___22___ that different habitats led to the creation of ___23___ species, and that differences in form are actual proof of different species. ___24___, according to Turesson, it is also possible that a ___25___ species takes different shapes dependent on the habitats it ___26___ in. To study this, I have looked at two dandelions growing in different habitats. The one, ____27____ I will call Dandelion 1, grows in a grass field that lies in the ___28___. The other Dandelion, Dandelion 2, grows in the shadow, eg ___29___ the trees or behind a shed. The grass field is hot and ___30___. The shadow is cool and wet. So, what are the ___31___ between Dandelion 1 and 2?
Dandelion 1 is dark green, and its ____32____ are short and quite thick. Most of the leaves lie ___33___ on the surrounding grass. The flowers are short. Dandelion 2, on the other hand, looks very differently. The leaves are long and ____34____green, Most leaves stand in a vertical position. The flowers also ___35___ tall.
Dandelion 2 ___36___ strong and tall. It is clear that it grows very well in the ___37___, and that has enough ____38____ and space to grow into a big plant. Dandelion 1, on the other hand, is small and dark. It seems that the ____39____ in the grassland make it difficult for this dandelion to grow into a big plant.
____40____, the conditions in the two different habitats result in different shapes for these dandelions. For Dandelion 1, the sun makes the grass field hot and dry. In order to save water, it grows short and thick leaves.
21. A. houses B. habitats C. parks D. countries
22. A. disagreed B. provided C. believed D. calculated
23. A. new B. good C. old D. bad
24. A. However B. Therefore C. Thus D. Otherwise...
25. A. same B. different C. strange D. single
26. A. plants B. works C. takes D. grows
27. A. what B. which C. that D. when
28. A. world B. mountain C. sun D. valley
29. A. under B. over C. upon D. between
30. A. Humid B. Wet C. Soft D. dry
31. A. similarities B. advantages C. differences D. disadvantages
32. A. seeds B. leaves C. weeds D. woods
33. A. flat B. apart C. dead D. logical
34. A. dark B. bright C. artificial D. familiar
35. A. lie B. break C. stand D. perform
36. A. sounds B. smells C. feels D. looks
37. A. swallow B. shallow C. shadow D. shape
38. A. sunshine B. leaves C. honey D. water
39. A. Conditions B. Occasions C. Situations D. preparations
40. A. Fortunately B. Obviously C. Consequently D. Accidentally
【回答】
BCAAD DBCAD CBABC DCDAB
知识点:人物传记 故事阅读类
题型:完型填空
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我们每天都生活在阳光不断变化的物质世界里。下列变化一定属于化学变化的是( )A.用干*做制冷剂进行人工降雨B...
问题详情:我们每天都生活在阳光不断变化的物质世界里。下列变化一定属于化学变化的是( )A.用干*做制冷剂进行人工降雨B.久置在空气中的澄清石灰水表面产生一层白膜C.伴随有发光、放热现象的变化D.*【回答】B知识点:各地中考题型:选择题...
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以下各组国家中,人口增长模式不同的是A.阿曼和孟加拉国 B...
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如图所示,一质量为m的物块恰好沿着倾角为的斜面匀速下滑。现对物块施加一个竖直向下的恒力F。则物块( ) ...
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对于一定量的理想气体,下列说法正确的是______。(选对一个给3分,选对两个给4分,选对3个给6分。每选错一...
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