Unit 19 A problem with squirrels. 知识点 讲义+练习(含答案)

Unit 19 A problem with squirrels 松鼠问题
一、重点单词及拓展:
复习几组不规则动词过去式
原形 过去式 中文
bring brought 带来
get got 得到
give gave 给
leave left 留下;离开
meet met 见面;开会
run ran 跑
say said 说
sleep slept 睡觉
take took 拿走
tell told 告诉
win won 赢得
write wrote 写
because 和because of 的用法
because 是连词,其后接句子
例:I didn’t buy it because it was too expensive. 我没有买是因为它太贵了。
It is because he likes you. 那是因为他喜欢你。(表语从句)
because of 是复合介词,其后接名词、代词、动名词、what 从句等
例:He didn’t come because of the traffic accident. 他没来是因为这场交通事故。
She was crying because of what he had said. 她哭是因为他说的话。
造句练习1:
我今天上学迟到了,因为路上有交通堵塞。
因为糟糕的天气,我今天心情不太好。
hang 动词,悬挂;悬浮;逗留;上吊
注意:此动词意思不同时,相应过去式、过去分词是不一样的、
hang-hung-hung悬挂;悬浮;逗留
hang-hanged-hanged 绞死,上吊
例:I hung my coat on a hook.我把大衣挂在钩子上
The decision is still hanging.尚未做出决定.
The five were expected to be hanged at 7 am on Tuesday.
那5个人将在周二早上7点被施以绞刑。
break的用法(过去式broke)
动词,打破;打碎
例:Please don’t break that cup. 别打碎那个杯子。
动词,违反;违背
例:The worker broke the rule of running this machine. 这名工人违反了操作这台机器的规则。
动词,打破(记录);中断某事
例:She expects to break the record of the Olympic 100 meters. 她渴望打破奥运会100米的记录。
4)名词,间歇;休息时间(尤指工作期间)
例:She's worked for 27 hours without a break. 她已经不间断地工作了二十七个小时。
注意:broken 既是break的过去分词,也可以用作形容词,表示受伤的,坏了的。
例:My leg is broken. 我的腿受伤了。
break 引导的短语:
break into 破门而入;打断(谈话)
break out (战争、瘟疫、火灾等)爆发
break down (机器)坏了;(谈话、通讯)中断
have a break 休息一会
die, dead, death的用法
die 动词,死亡 现在分词dying(通常用现进行表示将来), 过去式为died.
例:His grandpa died in 2001. 他的祖父逝世于2001年。
The man is dying because of his broken head. 这个人因为头部受伤而快死了。
2)dead 形容词,死去的;麻木的。
例:The bird was dead at last. 最终那只鸟还是死了。
名词,表示逝者,通常和the连用。
例:We should never forget the dead in the war. 我们不要忘记那些战争中的逝者。
death 名词,死亡
例:Car accidents caused many deaths. 汽车事故造成了很多死亡。
造句练习2:
今天早上,Tom打破了那个杯子。
我们已经学了1个小时了,让我们休息一下吧。
这只鸟受伤了。它快要死了。
别走那边,那有一直死去的鸟。
sleep, sleepy, asleep, sleeping的用法。
1)sleep 动词/名词,睡觉,睡眠(过去式为slept)
例:You have a good sleep. 你需要好好睡一觉。
Last night I slept very well. 我昨天晚上睡得很好。
短语:go to sleep 去睡觉
2)sleeping 是 sleep 的现在分词或动名词,做动名词时可作前置定语。
例:Be quiet! The little boy is sleeping now. 安静点!那个小男孩正在
做动名词时的一些常用短语:
sleeping car 卧车车厢 a sleeping bag 睡袋 sleeping pills 安眠药
3)asleep形容词,睡着的,作表语、宾语补足语,指状态。
例:The children have been asleep.孩子们已睡着了。
He was too tired and fell asleep at once. 他太累了,立刻就睡着了。
短语:fall asleep 入睡
4.sleepy形容词,作表语,意为“瞌睡的、困倦的”;作前置定语,意为“寂静的”。
例:She is always sleepy. 她总是想睡觉。
I feel very sleepy now. 我现在昏昏欲睡。
专项练习:
请用 sleep,sleeping,asleep and sleepy 填空:
1.Don’t make a noise,Grandpa is_____________.
2.I didn’t sleep well last night,so I’m feeling__________ now.
3.Keep quiet,don’t wake up the_____________baby.
4.I was too excited to go to_____________.
5.I met an old friend of mine in the________________car.
6.I was too tired last night and fell __________quickly.
参考答案:
造句练习1:
I was late for school today because there was traffic jam on the road.
I don’t feel very happy because of the bad weather.
造句练习2:
Tom broke that cup this morning.
We have studied for 1 hour. Let’s us have a break.
The bird is broken. It is dying.
Don’t go that way. There is a dead bird.
专项练习:
sleeping 2. sleepy 3. sleeping 4. sleep 5. sleeping 6. asleep

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