2. He lay in bed， wide awake.\/ He returned home， safe and sound.\/ The goat rolled over， dead.\/ The driver was sitting inside， unconscious.\/ How often do we arrive at work or school stressed out， tired and angry.\/ Comfortable and safe， these attractive shoes can be worn to any event.

3. Strangely enough， some famous scientists have the qualities of being both careful and careless.

4. You cannot be careful enough.\/ You cannot be too careful.

5. At a rough estimate， Nigeria is three times as big as Great Britain.\/ At a rough estimate， Nigeria is three times the size of Great Britain.\/ I was so hungry that I ate twice as much as anybody else.

6. The output of this year is 3 times what it was in 2010.\/ The output of this year is 3 times that of 2010.

7. It is generally believed that teaching is as much an ant as it is a science.

8. The building is as tall as 150 metres.\/ The building is 150 metres tall.\/ It can get as cold as minus 40 or 50 degrees at night. 本章未完，请点击下一页继续阅读！ 第3页/共10页