https://online2.tingclass.net/lesson/shi0529/0001/1240/06-3.mp3
https://image.tingclass.net/statics/js/2012
17. Professor Smith and Professor Brown will ____ in giving the class lectures.
A. alter B. change C. alternate D. differ
<alter>
alter 改變(把某物改大改小)
change 改變(強(qiáng)調(diào)結(jié)果)
from...to... 差異
convert 轉(zhuǎn)變(信仰)
converter 叛教者
</alter>
<differ>
differ 不同
differ from 不同
fetch 取來(lái)
ferryboat 渡船
conifer 針葉樹(shù)
cone 圓錐形，松果
</differ>
<conference>
conference (一般性)會(huì)議
meeting 會(huì)議(口語(yǔ))
convention 國(guó)際大會(huì)，風(fēng)俗習(xí)慣
adventure 冒險(xiǎn)
summit 高峰，頂點(diǎn)，峰會(huì) (七國(guó)首腦會(huì)議)
forum 論壇
seminar 學(xué)術(shù)研討會(huì)
</conference>
<alternate>
alternate adj.輪流的，v.輪流
A.C.：A.lternating C.urrent 交流電
alternative adj.二者擇一的，n. 二中擇一，其他的
at an alternative 作為另一個(gè)選擇
</alternate>
