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【简答题】
已知，如图，在平面直角坐标系中，点A坐标为（﹣2，0），点B坐标为（0，2 ），点E为线段AB上的动点(点E不与点A，B重合)，以E为顶点作∠OET=45°，射线ET交线段OBF，C为y轴正半轴上一点，且OC=AB，抛物线y=﹣ x 2 +mx+n的图象经过A，C两点． （1）求此抛物线的函数表； （2）求证：∠BEF=∠AOE； （3）当△E OF为等腰三角形时，求此时点E的坐标； （4）在（3）的条件下，当直线EF交x轴D，P为（1）中抛物线上一动点，直线PE交x轴G，在直线EF上方的抛物线上是否存在一点P，使得△EPF的面积是△EDG面积的（2 +1）倍．若存在，请直接写出点P的坐标；若不存在，请说明理由．
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举一反三
【单选题】_______carefully you write, _______ mistakes you’ll make.
A.
The more, the fewer
B.
The less, the fewer
C.
The less, the more
D.
The more, the less
【单选题】____________you write, ________ you make .
A.
The carefuler, the few mistake
B.
The more careful , the few mistake
C.
The more carefully, the fewer mistakes
D.
The more careful , the fewer mistakes
【单选题】Was it not until you began to write ______ you should have remembered more words?
A.
did you realize
B.
that you realized
C.
did you not realize
D.
that you didn't realize
【单选题】—Do you think it is _____ to write an English essay? —Yes, you can do it _____ if you practice more. [ ]
A.
easy, easy
B.
easily, easy
C.
easily, easily
D.
easy, easily
【单选题】You must write as ___________ as you can. [ ]
A.
more careful
B.
carefully
C.
careful
D.
more carefully
【简答题】Directions：Write a composition entitled Online Education. You should write at least 120 words according to the outline given below in Chinese. 1.目前网络教育形成热潮; 2.我认为这股热潮的原因是…… 3.我对网络教育的评价。
【单选题】As a _______, you must pay more attention to the facts before you write the article.
A.
foreigner
B.
visitor
C.
partner
D.
reporter
【单选题】While you are having an exam, you must write as ________ as you can.
A.
careful
B.
carefully
C.
more carefully
D.
most careful
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