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问题 选择题

有关遗传与变异的说法，正确的是[ ]

A．基因型为Dd的豌豆，产生雌雄两种配子的数量比接近1：1

B．自由组合定律的实质是所有等位基因分离，非等位基因自由组合

C．孟德尔成功的原因是从研究豌豆的全部相对性状综合分析入手

D．DNA中脱氧核苷酸的种类和数量发生改变，不一定引起染色体变异

答案

答案：D

阅读理解
A  School  Report
Name:Edward Scott
School:  Kelvin Grove State High School，London
Grade
7
Term ending
May 6th
Subjects              
 
Maths
He is a little weak in this, but he has tried his best to catch up with others.
Science :   
He can work out many difficulties. Well done!
English :   
He is the best in the class. Keep it up!
French:   
His reading is very good, and he can remember many words.
History:    
He is not so good at this, but he has done better than before.
Geography:
He knows the names of many places in the world.
Music    
He does like pop songs, and he sings very well.
Remarks(评语)  
Edward has the ability to do a lot better. More work is needed next term.
Class teacher
Ivy
Principal
M.L Martin
School reopens
11, September
 
小题1:After reading this, we know this is ________.
A．a studying planB．a teaching plan
C．a school reportD．a working plan
小题2: Which of the following is not mentioned in the form? ____.
A．P.E.B．MusicC．MathematicsD．History
小题3: Edward’s best subject is ________.
A．ScienceB．EnglishC．GeographyD．French
小题4:Edward is NOT so good at ________.
A．maths and historyB．science and geography
C．history and FrenchD．music and English
小题5: According to the form, which of the following sentences is true?
A．Edward can’t sing songs very well.
B．School will begin again on May 6th.
C．Edward can do better if he works hard next term.
D．Edward doesn’t do well in science.
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