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【简答题】
（1）已知A=2x 2 -3x-1，B=x 2 -3x-2，比较A、B的大小； （2）比较8 1350 和4 2009 的大小； （3）已知a=2 55 ，b=3 44 ，c=4 33 ，试比较a、b、c的大小； （4）已知a 3 =2，b 5 =3，试比较a、b的大小．
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【单选题】---__________ did Tara learn ice skating? ---For three years.
A.
How long
B.
How old
C.
How often
【单选题】How did the colonists learn to make com bread?
A.
They were shown how by the Indians.
B.
They changed their wheat bread recipes.
C.
They knew the technique before they arrived in America.
D.
They tried to make more nutritious bread.
【单选题】― ________ did you learn Spanish? ― For nearly four years. [ ]
A.
When
B.
How long
C.
How
D.
How often
【单选题】—How did your uncle learn to play the guitar? —By ________.
A.
myself
B.
yourself
C.
herself
D.
himself
【单选题】—_______ did you learn ice skating? —For three years. [ ]
A.
How long
B.
How old
C.
How many
D.
How much
【单选题】听力原文：M: How did your interview go? W: I couldn't feel better about it. What do we learn from the conversation?
A.
The woman is sick.
B.
The woman is worried about her interview.
C.
The woman is confident.
D.
The woman is feeling better.
【单选题】-Your uncle is very good at cooking! How did he learn it? -He learned it by _______ .
A.
him
B.
himself
C.
her
D.
herself
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