☆重点句型☆
1. life in the oceans range from the tiniest plants all the
way up to giants like sharks and whales.
2. water is actually quite simple, but the way the water
molecule is formed gives water its unique properties.
3. they form a polar molecule, that is, one with a slightly
positive end and a slightly negative end.
4. the salinity of the earth's oceans is about thirty-five
parts per thousand, meaning that there are about 35
grammes of dissolved solids and gases in one kilo of
water.
5. heat capacity is the amount of energy it takes to raise
the temperature of a substance by one degree
centigrade.
6. water, which seems ,
Module1 Our Body and Healthy Habits学案