重点讲解：
1. a lot of 许多；
This project involves a lot of complex technical problems.
这个方案牵涉到许多复杂的技术问题h4GVmD43=x.。
2. not at all 一点也不；
He didn't come at all. It was silly of us to keep on waiting for him.
他根本没有来，我们傻等了他半天jG%.pzPrTjHNu9JAK6I。
3. less than （用在数字或数量前）少于，低于，比…少；
Motorways actually cover less than 0.1 percent of the countryside.
高速公路的实际覆盖面积还不到农村地区的0.1%95DvIHyE=xxf-hejR%。
4. be likely to do sth. 可能（做…）的；有（…）倾向的；
He is likely to be called up for Thursday's match against Italy.
他有可能被选中参加星期四对意大利的比赛q49-yhE(!KxKTC55。