Unit 4 Fact and Story 教案
某人正在做某事，另一件事發(fā)生了。
while he was taking the picture, the phone rang.
while tom was riding his bike home, he saw a boy fall to the ground.
3. 根據(jù)提示，完成練習(xí)。
（1）湯姆正在車站等車時看見一位老朋友。
at the bus stop, he saw one of his old friends.
（2）你到家時，你媽媽在干什么？
when you got home?
（3）他們正在操場打球，這時候下起了雨。
they were playing basketball on the playground
（4）我做作業(yè)時燈滅了。
while , the light .
（5）學(xué)生們正在說話時老師進來了。
while , the teacher .
（二）副詞的構(gòu)成及使用。
副詞是修飾動詞、形容詞、其他副詞或全句的詞。它也是從時間、地點、方式、程度等方面說明行為、性質(zhì)或狀況的詞。副詞分為地點副詞、方式副詞、程度副詞、疑問副詞、連接副詞、關(guān)系副詞等。
1. 方式副詞構(gòu)成：
（1）許多方式副詞是在意思相關(guān)的形容詞后加ly。
slow-slowly graceful- gracefully sad-sadly soft-softly thick-thickly
different-differently difficult-difficultly hopeful-hopefully serious-seriously
（2）以輔音字母加y結(jié)尾的先變y為i,再加ly
happy-happily easy -easily busy-busily lazy-lazily