如果代数式4y2-2y+5的值是7，那么2y2-y+1的值等于（ ） A．2 B

已知二次函数的图象经过点（0，3），（-3，0），（2，-5），且与x轴交于A、B两点．

（1）试确定此二次函数的解析式；

（2）判断点P（-2，3）是否在这个二次函数的图象上？如果在，请求出△PAB的面积；如果不在，试说明理由．

Can you give me a pen       ?       [ ]

A. writing              

B. to write      

C. to write with          

D. to write over

关于下列各装置图的叙述中，不正确的是（    ）

A．实验室常用装置①制取NH₃

B．装置②中X若为CCl₄，可用于吸收NH₃，并防止倒吸

C．装置③可用于制备Fe(OH)₂并较长时间观察其白色

D．装置④可用于收集NO

写出下列反应的化学方程式，并标明基本反应类型

（1）实验室用氯酸钾和二氧化锰制氧气______属于______ 反应．

（2）细铁丝在氧气中燃烧______属于______ 反应．

Directions:This section consists of three groups of pairs listed in two columns, A and B. You are to match the one marked 1), 2), 3),4) or 5) in Column A with the one marked a, b, c, d or e in Column B. One point is given to each pair you match.
1) ______the Grammar-Translation Method
2) ______ the Direct Method
3) ______ the Oral Approach
4) ______ the Audiolingual Method
5) ______ the Cognitive Approach
a) The neogrammarians, represented by Hermann Paul formed its main linguistic base.
b) The structural linguists believed that the primary medium of language is oral, that is language is speech.
c) It lays emphasis on the conscious acquisition of language as a meaningful system.
d) It can be characterized as a type of British "structuralism".
e) It believes in the natural process of language learning and in the inductive teaching of grammar.