第一单元重点单词讲解.ppt

Unit 1 Friendship
Period 1
Words and expressions
add up 合计,加起来
add up to 加起来是……;结果是
add …to…把……加到……上
add to 增加,促进
翻译:
。
The heavy rain add to our difficulty.
,往菜里加点盐。
Before eating, add some salt to the dish
add up all the figures.
the figures add up to 100
ignore
[点拨] ignore主要用作及物动词,意为“忽视;忽略;不理睬”。
[联想] ignorant adj. 无知的 ignorance n. 无知;不了解
[拓展] be ignorant of / about... 对……不了解,不知道
have to和 have got to
1, 在表示一次性动作时,have to和 have got to 是可以互换的
2, 但是,当表示习惯性动作时,尤其是当句中含有表示经常性的副词(如always, often, sometimes等)时,则应使用have to , 而不使用have got to: I don’t usually have to work on Sundays. 通常我再星期天不必工作。
3, have to 与 have got to 的另一区别,就是后者不大用于过去时。 They didn’t have to worry about money. 他们那时不必为金钱而操心。
4, 最后一个区别,就是have to 前可加助动词或情态动词,或者用在进行体和完成体结构中,而have got to却不能: I shall have to help him as much as I can. 我将不得不尽我所能去帮助他。 He may have to cancel his plan. 他也许不得不取消这个计划。
concerned adj. 担心的;忧虑的;关切的; concerned about / for / with(关心,担心)
:He called the police because he was concerned for / about his son’s safety.
concern about \for 关心,挂念
far as I am concerned 就我而言……
Every day the man ____ _____ the amount of the money he cost.
sets down
树立,建立
出发,动身
开始,着手
set up
set out/off
set about