阅读素材：托福考试阅读长难句汇总20

>>2019年托福考试：阅读素材：托福考试阅读长难句汇总20

>>托福集中冲分课程

1. Nor does the hypothesis that infantile amnesia reflects repression- or holding back- of sexually charged episodes explain the phenomenon.

2. Thus, all three explanations-- physiological maturation, hearing and producing stories about past events，and improved encoding of key aspects of events--seem likely to be involved in overcoming infantile amnesia.

3. Aeroponics, a technique in which plants are suspended and the roots misted with a nutrient solution, is another method for growing plants without soil.

4. Saline soils, which have high concentrations of sodium chloride and other salts, limit plant growth, and research continues to fous on developing salt-tolerant varieties of agricultural crops.

5. After several years of cultivation and harvest, the site would be restored at a cost much lower than the price of excavation and reburial, the standard practice for remediation of contaminated soils.

6. The culture of that time, based on archaeology and linguistic reconstruction, is assumed to have had a broad inventory of cultivated plants including taro, yarns, banana, sugarcane, breadfruit, coconut, sago, and rice.

7. As a result of crustal adjustments and faulting, the Strait of Gibraltar, where the Mediterranean now connects to the Atlantic, opened, and water cascaded spectacularly back into the Mediterranean.

8. These peoples settled at first in scattered hunting-and-gathering bands, although in some places near lakes and rivers, people who fished, with a more secure food supply, lived in larger population concentrations.

9. Their migration may have been set in motion by an increase in population caused by a movement of people’s fleeing the desiccation, or drying up, of the Sahara.

10. It seems likely that Teotihuacán’s natural resources―along with the city elite’s ability to recognize their potential―gave the city a competitive edge over its neighbors.

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