1.reasoning n．推理，论证(argument)；a．推理的(the use of reason)
词根记忆：来自reason(n．理由：理性：v.说服；推论)
例：This confirms the alternative view that intuition is actually more effective than careful, methodical reasoning.
派生词：reasoningly( ad.理性地：推论地)
同根词：reasonable(a．合理的：公道的)

2.rebut v.反驳(to refute)
词根记忆：re(反)+but(=butt顶撞)——反顶撞——反驳
例：The scientist rebutted the cigarette company's claims.
派生词：rebuttal(n．反驳，反证)

3.recall v.回忆(to remember)；n．收回(a public call by a manufacturer for the return of a product that may be defective)
词根记忆：re（重新）+call(叫，召集)——重新叫一遍，收集一遍——回收
例：Randomly generated passwords are difficult for employees to recall.//Although one link in the chain was weak, it's not sufficiently so to require the recall of the automobile.

4.receipt v．收据(a piece of paper as proof of receiving of goods or money); [pl.]收入(sth. received)
词根记忆：re+ceipt(看作cept拿，取)——拿到的，取到的——收入
例：gross receipts总收入

5.reception n.（无线电、电视等的）接收效果(the receiving of a radio or television broadcast)
例：For locations with poor television reception, cable televisions are recommended.

6.receptive a．(to)（愿意）接受的( inclined to receive)
词根记忆：re+cept(拿，取)+ive——愿意拿的——接受的
例：Jane was receptive to changes in her work schedule.
派生词：receptivity(n．接受能力)

7.receptor n.感（接）受器(receiver)；受体(sense organ)
词根记忆：re+cept(拿，取)+or——被拿的——受体，主要用于生物学领域
例：The milk of many mammals contains substances that are known to stimulate certain receptors in the brain.

8.recession n.衰退，萧条（时期）（a period of reduced economic activity）
词根记忆：re(反)+cess(走)+ion——反着走——衰退
例：It's impossible to decrease inflation without causing a recession and its concomitant increase in unemployment.

9.recipe n．食谱(a set of instructions for making something from various ingredients)
联想记忆：re+cipe(抓)——从饭里抓出的精华——食谱
例：There are a lot of delicious recipes in this cookbook.