答案　C　[推理判断题。根据第二段"If you are like most learners，you may have faced such a situation：You think you understand a topic.Yet when asked to use what you have learned，you are not able to remember the information..."可知，Sarah Lynn认为英语学习者普遍存在的一个问题是他们掌握的知识并没有自己想象中的那么好。故C项正确。]

2.What's one benefit of self-testing?

A.Develop people's interest in their study.

B.Improve people's psychological quality.

C.Focus people's attention on their study.

D.Help people think more critically.

答案　B　[细节理解题。根据第五段中的"By testing yourself，you can build confidence in the skills you have developed"可知，你可以通过自我检测建立自信心，即自我检测可以提高一个人的心理素质。]

3.Which is the advice given by Sarah Lynn about testing oneself?

A.Present what's learned with the book closed.

B.Remember what's learned by repetitive reciting.

C.Question your teachers on what you doubt bravely.

D.Challenge yourself to make complicated flashcards.

答案　A　[推理判断题。根据第四段中的"Lynn recommends that learners test themselves by getting away from what they are studying"和"Lynn suggests reading something or watching a video on the topic，then getting rid of the reading or audio material and summarizing it"可知，Lynn建议人们脱离阅读材料或音频材料进行自我检测，故A项正确。]

4.Which saying contradicts the idea of the underlined sentence?

A.No pains，no gains.