2013-2014学年四川省雅安中学高二上学期期中考试英语试卷（带解析）

适用年级：高二
试卷号：62179

试卷类型：期中
试卷考试时间：2017/7/19

1.选择题(共3题)

电磁波已广泛运用于很多领域．下列关于电磁波的说法符合实际的是（）

查看解析收藏

一静止原子核发生α衰变，生成一α粒子及一新核，α粒子垂直进入磁感应强度大小为B的匀强磁场，其运动轨迹是半径为R的圆．已知α粒子的质量为m，电荷量为q；新核的质量为M；光在真空中的速度大小为c．求衰变前原子核的质量．

查看解析收藏

太阳内部不断进行着各种核聚变反应，一个氘核和一个氚核结合成一个氦核是其中一种，请写出其核反应方程{#blank#}1{#/blank#}；如果氘核的比结合能为E₁，氚核的比结合能为E₂，氦核的比结合能为E₃，则上述反应释放的能量可表示为{#blank#}2{#/blank#}．

查看解析收藏

It's quite obvious that the aging population in China will cause heavy pressure on ________ whole society in the future．

A．／；the

B．the；／

C．a；the

D．a：a

查看解析收藏

With coal and oil , what long-term effects of global warming on humans will be?

A．run out of

B．are using up

C．run out

D．running out of

查看解析收藏

All the classmates were _______my suggestion that we read English every day.

A．in case of

B．in favor of

C．in honor of

D．in order of

查看解析收藏

Mr. Lin _____ when I go to see him on Sundays.

A．is always working	B．was always working
C．always worked	D．has always worked

查看解析收藏

As a coach，you should know clearly about the direction your team should develop．

A．to which

B．in which

C．on which

D． for which

查看解析收藏

试卷分析