英语周报2021-2024学年高三新课程版第23期答案

本文是说明文。被子植物曾被认为是突然出现在白垩纪中期的，这让达尔文一度无法自圆其说。

8.A。细节理解题。根据第二段中的As naturalselection acts only by building up slight,successive,favorable variations,it can produce no great or suddenadjustment;it can act only by very short and slow steps可知，达尔文在《物种起源》一书中提到进化的过程是渐进式的。

9.D。推理判断题。根据第三段中的Work like thishighlighted the fact that a huge variety of angiospermsappeared suddenly in the middle of the CretaceousPeriod和第四段中的the rapid coming of angiospermsalso provided his critics with evidence against hisevolutionary model可知，Brongniart所做的研究可能证明达尔文的进化论观点是错误的。注：theCretaceous Period指“白垩纪时期”。

10.C。推理判断题。根据倒数第二段中的Darwin didsuggest a solution和Aware of the lack of evidence toback up his theory,Darwin described it as“pitifullypoor”可知，达尔文对他自己给出的解释并不确定。