本讲为2007年上半年新的教学内容，请对照教材听录音！
  apply for: I am applying for a visa.
  apply to: I won’t apply the method to you.
  Class
  Classify
  Classification
  My father is sleeping soundly.
  I always have a sound sleep.
  That sounds good.
  Misunderstanding
  Mislead
  Avoid doing
  I will avoid meeting him again.
  I am enjoying the sunlight.
  I enjoy listening to the pop music.
  ought to = should
  You ought to obey what your parents said.
  The mountain is very high.
  He jumps high.
  The teacher praised us
  He is 1.76 meters high. --- in height
  Vocab.
  Interruption
  product
  produce
  productivity
  Quick
  Fast
  Rapid
  Secure
  Security
  Intend to do sth.
  Intend doing
  Intention
  Specify
  Specification
  prefer A to B
  Clearly
  obviously
  Consultant
  person
  personal
  Heighten
  Deepen
  Sharpen
  Enlarge
  Ensure
  Minimum
  Effect----side-effect
  Effective
  Effectiveness
  Sharpener
  Be aware of
  Be unaware of
  Accurate ---- inaccurate
  Exact ---- inexact
  At ease
  Easy
  Easily
  Uneasy
  Encounter
  Begin to do
  Begin doing
  Start to do
  Start doing
  Stop to do
  Stop doing
  Go on to do
  Go on doing
  Continue to do
  Continue doing