Unit 12 Life is full of the unexpected. 同步培优 2024-2025学年英语人教版九年级全一册（含答案）

Unit 12 Life is full of the unexpected.
【悟情境·知考点】
考点1 by the time 的相关用法
情境呈现
Alan is a 10-year-old boy from Singapore. He had collected Chinese ancient paintings for three years by the time he went to a primary school in Beijing.
考点精讲
by the time...意为“在……以前;到……时候(为止)”,是一个介词短语,在句中经常起连词作用,引导时间状语从句。从句中的谓语动词常用一般过去时,主句中的谓语动词常用过去完成时,表示“截止到从句动作发生时,主句动作已经完成,即过去的过去”。如:
By the time I woke up this morning, my mother had washed all my dirty clothes.当我今天早上醒来的时候,我的妈妈已经洗完了我所有的脏衣服。
任务1 巩固by the time的相关用法
子任务1~2　用所给单词的正确形式填空
1.By the time the teacher came, we 　　　　(finish) cleaning the classroom.
2.By the time she returned home, the rain 　　　　(stop).
子任务3　同义句转换
3.By the time Linda came back, her brother had eaten up the whole watermelon.
　　　　 Linda came back, her brother had eaten up the whole watermelon.
子任务4~5　英汉互译
4.By the time I graduated from university, I had learned French by myself for two years.
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5.在我到达火车站的时候,火车已经开走了。
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考点2 alive、living、live和lively的相关用法
情境呈现
There are full of colors and joys in the park. The lively birds are singing happily in the trees, showing us the beauty of life. Alive with energy, some parents are enjoying the living world with their children. We can see some young people giving a live concert. It seems that all people live every moment to the fullest. What a happy picture it is!
考点精讲
考点 含义 用法
alive 意为“活着的;鲜活的”,侧重生与死之间的界限 常作表语、宾语补足语或后置定语,多用于指人,也可指物
living 意为“活着的”,强调说明存活着 常作表语或前置定语,多用于指物,也可指人
live 读作/la v/时,意为“活的;现场直播的” 一般作前置定语,只修饰物,不修饰人
lively 意为“充满活力的;(色彩)鲜艳的” 作(前置)定语、表语或宾语补足语,可指人,也可指物
任务2 巩固alive、living、live和lively的相关用法
子任务1~3　用所给单词的正确形式填空
1.She is one of the greatest scientists still 　　　　(live).
2.He is the only 　　　　(live) man in the accident.
3.The market was very 　　　　(live), filled with colorful fruit and vegetables.
子任务4~5　英汉互译
4.The concert will be broadcast live on television.
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5.我们喜欢徐老师,因为他的课生动有趣。
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考点3 go off的相关用法
情境呈现
Some months ago, the gas went off in that village. In the accident, 7 people died and 27 got injured. After the fire alarm went off, lots of people volunteered to save the people caught in the fire. For the safety, we should make sure that all the lights go off before we go off to work. But there’s no need for us to turn off the fridge because the food will go off easily if we do so.
考点精讲
go off 是动词短语,为多义词,其用法如下:
拓展延伸
go构成的其他短语:
go on继续　go out 出去　go by流逝;经过;顺便走访　go past 经过
任务3 巩固go off的相关用法
子任务1~3　英汉互译
1.When my mother came into my room, I was just lying in bed and waiting for the alarm to go off.
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2.What time do you go off duty
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3.距离那只老虎远一点。它很危险。
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子任务4　同义句转换
4.Don’t eat the meat which has gone off.
Don’t eat the 　　　　meat.
考点4 at the end of、in the end和by the end of的相关用法
情境呈现
6-year-old Julie’s dream is to travel around the world. By the end of last term, she had been to about 19 countries. During the journey, she had learned the dances from different countries. At the end of last month, her city had a big art festival. She tried out for the dancing competition and practiced dancing every day. She won the competition in the end.
考点精讲
任务4 巩固at the end of、in the end和by the end of的相关用法
子任务1~3　选词填空
in the end　by the end of　at the end of
1.Go straight and turn left 　　　　　the road.
2.　　　　　　　　 last month, Jerry had raised about 1,000 dollars for the sick kids in his neighborhood.
3.With the help of Tom and Sam, Alice finished her first model plane 　　　　　　　　　.
子任务4~5　英汉互译
4.We’ll have a math exam at the end of January.
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5.到这学期末为止,我们已经花光了所有的钱。
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考点5 leave和forget的相关用法
情境呈现
Mary is a forgetful girl. One day she forgot to take her schoolbag to school. She thought she left it at home possibly. After school, she could not find it at home. She realized that she forgot putting her schoolbag into the basket of Lisa’s bike.
考点精讲
leave作动词,意为“离开;留下;忘记,落下”。
任务5 巩固leave和forget的相关用法
子任务1~2　用所给单词的正确形式填空
1.Don’t forget 　　　　(turn) off the lights when you leave the classroom.
2.Yesterday evening, I 　　　　(leave) my umbrella in the library.
子任务3~4　英汉互译
3.Our hometown has left so many sweet memories in our hearts.
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4.今天上午我可能把我的钥匙落在家里了。
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参考答案
Unit 12　Life is full of the unexpected.
任务1
1.had finished
2.had stopped
3.Before
4.在我大学毕业之前,我已经自学了两年法语。
5.By the time I got to the railway station, the train had left.
任务2
1.alive
2.living
3.lively
4.这场音乐会将在电视上现场直播。
5.We like Mr. Xu because his classes are very lively and interesting.
任务3
1.当我妈妈走进我的房间时,我正躺在床上等着闹钟响。
2.你什么时候下班
3.Go off the tiger. It’s dangerous.
4.bad
任务4
1.at the end of
2.By the end of
3.in the end
4.我们将在一月底进行一场数学考试。
5.By the end of this term, we had run out of all the money.
任务5
1.to turn
2.left
3.我们的家乡在我们心中留下了许多甜蜜的回忆。
4.Maybe I left my keys at home this morning.