[单项选择]One of the most important things I've learned is how much there is to learn, and how much I don't yet know.（　）
A. ...that in the vast sea of knowledge I'm just a little drop.
B. ...that I know very little and there's much for me to learn.
C. ...that I am ignorant, so I must learn what I do not know.
D. ...that compared with what I don't know, my knowledge is limited.

[简答题]12 Things I’ve Learned From Traveling Around the World for Three Years
On March 13, 2007, I handed over the keys to my house, put my possessions in storage and headed out to travel around the world with nothing but a backpack, my laptop and a camera.
Three and a half years and 70 countries later, I’ve gotten the equivalent of a Ph. D in general knowledge about the people and places of Planet Earth.
Here are some of the things I’ve learned:
1) People are generally good.
Many people are afraid of the world beyond their door, yet the vast majority of humans are not thieves, murderers or rapists. They are people just like you and me who are trying to get by, to help their families and go about living their lives. There is no race, religion or nationality that is exempt from this rule. How they go about living their lives might be different, but their general goals are the same.
2) The media lies.

[单项选择]

One of the most remarkable things about the human mind is our ability to imagine the future.In our (21) we can see what has not yet happened.For example,while we are looking forward to (22) a new place or country,we (23) what it will be like.We predict(预料) the (24) people will eat,dress and act.Of course,we do not always predict things (25).Things are often very different from the way we (26) them to be.One of the (27)dreams in history is the dream of the German scientist,Kekule,who had been (28) to work out a very difficult problem in physics.He had (29) and analyzed(分析) the problem from every angle(角度) for days,but there (30) to be no way of (31) out the answer.Then one night he went to bed and dreamed.When he (32) up,he realized that he knew the answer.He had solved the problem in his (33) .The hypnotist(催眠者) sat in the chair opposite him and spoke (34) :I want you to concent rate on my voice.Think about (35) You know nothing but my voice.And as you pay attention to my voice,y
A. quickly
B. simply
C. correctly
D. neatly