《2025年系统集成新课程同步导学练测高中英语必修第二册》

6. fall on 适逢，正当；袭击；向……进攻；扑向；抓住；由……负担
【归纳拓展】
fall down/over 倒下，倒塌
fall away 减少；减小；消失；消散
fall into 进入某种状态；可以分为，能够分成
fall behind 落后
fall behind with 拖欠(付款)
fall for 对……信以为真；爱上
fall out 脱落；掉落；(战士)离开队列
fall in with 同意；赞成
fall in love with 爱上
My birthday falls on a Monday this year.
今年我的生日适逢星期一。
They fell on him with sticks.
他们用棍棒袭击他。
The full cost of the wedding fell on us.
婚礼全部费用由我们负担了。
The salesman said the car was in good condition, and I was foolish enough to fall for it.
推销员说这辆汽车状况良好，而我那么傻竟然信以为真。
I don't want to fall behind with the rent.
我不想拖欠租金。
【活学活用】
单句语法填空
①The boy fell into water and was pulled out at once.
②The children fell on the food and ate it greedily.
③Although all of them were exhausted, not a single soldier fell out.
④He faces losing his home after falling behind with the payments.

答案： 6.①to promote ②promotion ③promoter

7. observe vt. 遵守；注意到；观察；庆祝
【归纳拓展】
observe sb. doing… 观察到某人正在做……
observe sb. do… 观察到某人做了……
be observed/celebrated as 作为……被庆祝
observation n. 观察；监视
We should observe good traditions handed down to us from the past.
我们应该遵守过去传给我们的好传统。
The police observed a man enter the bank.
警察注意到一个男人走进了银行。
He made a telescope through which he could observe the stars.
他做了个望远镜，可以用来观察星星。
He observes the Spring Festival with family members every year.
每年他跟家人一起庆祝春节。
【温馨提示】
observe 后面既可以接现在分词作宾语补足语，也可接不带 to 的动词不定式(但在被动语态中要加上 to)和动词的过去分词作宾语补足语。此外 see、watch、notice、look at、hear、listen to、feel、have(使，让)等动词(短语)与 observe 有相同的用法。
He was observed to follow her closely.
有人看到他紧跟着她。
【活学活用】
单句语法填空
①Other forms of parental involvement, including volunteering at school and observing(observe)a child's class, also fail to help.
②He is often observed to cheat(cheat)at cards.
③The patient was kept under observation(observe)all night.

答案： 7.①observing ②to cheat ③observation