Lesson Six Text A                  Diamonds       Diamonds are rare, beautiful, and also quite useful. They are the hardest substance found in nature. That means a diamond can cut any other surface. And only another diamond can make a slight cut in a diamond.       Diamonds are made from carbon. Carbon is found in all living things, both plant and animal.                   Substantial   Coal   press   Gas---solid---liquid   Melt away   popularity   This type of Mp3 is popular with the college students.   Red stone---jewel   Form-----fill inout the form   Tube baby   A little bit   Lift---escalator   Damage   Fat   She had two romantic experiences last summer.   He is an old worker with much experience.   Mine   At once----right away----one minute   The desk is made of wood.   The wine is made from grape.   The paper is made in China.   Time is running out.   We are running out of coffee.   Sort=kind---all kinds of =all sorts of    Sticky tape-----cling to   Impress---impression   Fatty   Brazilian