[简答题]reading:讲的是概率统计里面的sampling error. when people want to drawconclusions about a large group, sometimes, the group is so large that it isimpossible to analyze it. So a sample is introduced. When a sample is accurate,it can represent the whole group. But when it is inaccurate, sampling errorwould occur.listening: a researcher conducted an experiment to research the amount of fish ofdifferent sizes -- big fish, middle size fish, small fish. Because there are manyfish in the lake so he wants to select a sample from the lake by his net. Butthere are just big fish and middle size fish in his net. He is surprised thatthere is no small fish in the lake. But he then figures out that this is becausesmall fish has escaped from his net.

[单项选择]When people want to relax themselves, they prefer （　） TV or listen to music rather than （　） newspapers.
A. watching; read
B. watching; to read
C. to watch; read
D. to watch; reading

[单项选择]

When we want to (56) other people what we think, we can do it not only with the help of words, but also in many (57) ways. For example, we sometimes move our heads (58) when we want to say "yes", and we move our heads (59) when we want to say "no" .
People who can (60) hear (60) speak talk to each other with the help of their fingers. People who do not understand each other’ s language have to do the same. The following story shows (61) they sometimes do it.
(62) English man who could not speak Italian was (63) travelling in Italy. One day he entered a restaurant and sat (64) a table. When the waiter came, the Englishman opened his mouth, (65) his fingers into it, (66) them out again and moved his lip. In this way he meant to say," (67) me something to eat. "The waiter soon brought him (68) tea. The Englishman (69) his head a
A. now and then
B. over and over
C. up and down
D. here and there