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班级 姓名 学号 分数
Unit 5 What were you doing when the rainstorm came?
单元重点单词变形短语语法句型精练
(时间:60分钟,满分:100分)
单元单词变形
1.heavy adj重的→ heavily adv.在很大程度上;大量地
2.sudden adj.突然的→suddenly adv.突然;忽然
3.complete adj.彻底的 v.完成→completely adv.彻底地
4.recent adj.最近的→ recently adv.不久前;最近
5.wind n.风→ windy adj.多风的
6.ice n.冰→ icy adj.覆盖着冰的;冰冷的
7.wood n.木头→wooden adj.木质的
8.report v.& n .报道;公布→ reporter n.记者
9.terror n.恐惧→terrorist n.恐怖分子
10.strange adj.奇怪的;陌生的→stranger n.陌生人
11.silent adj.沉默的,安静的→silence n.沉默;无声
12.sleep v.& n.睡觉→ asleep adj.睡着(的) → sleepy adj. 困倦的;冷清的
13.shock v.(使)震惊→ shocked adj.震惊的
14.fall v.倒塌→fell(过去式)→fallen (过分)/adj.倒下的;落下的
15.true adj.真的→truly adv.真正地→ truth n.实情;事实
16.match n.火柴;比赛→ matches pl.
17.begin v.开始→began(过去式)
18.beat v.敲打;打败→beat(过去式)
19. rise v.升起;提高;增加→rose(过去式)
单元短语词组句型
1. be busy doing sth.忙于做某事 5. wait for sb. to do sth.等待某人做某事
2. see sb./ sth. doing sth.看见某人/某物正在做 6. remember to do sth.记得要做某事
某事 remember doing sth.记得做过某事
3.begin/ start to do sth.= begin / start doing sth.开 7. be shocked to do sth.对做某事感到震惊
始做某事 8. It's + adj.+ to do sth .做某事是……的。
4. try to do sth.尽力做某事 9. have trouble ( in ) doing sth.做某事有麻烦10. so... that …如此……以至于…… 11.miss doing sth 错过干某事
一、用括号内所给单词的适当形式填空(本大题共30小题,每小题1分,共30分)
1.We can see many doing sports on the playground now. (pupil)
【答案】pupils
【详解】句意:现在我们可以看到许多学生在操场上做运动。根据“many”可知,此处应用可数名词
pupil“学生”的复数形式。故填pupils。
2.The impression you make at the of an interview is very important. (begin)
【答案】beginning
【详解】句意:你在面试开始时留下的印象非常重要。结合提示词和题干可知,本题应使用短语at the
beginning of“在……之初”。故填beginning。
3.The number of teenagers who volunteer to help the old people on holidays is increasing . (recent)
【答案】recently
【详解】句意:最近,在假期志愿帮助老人的青少年人数在增加。recently“最近”,时间副词,位于句末
作状语。故填recently。
4. roads are dangerous in winter and we had better not run on them. (ice)
【答案】Icy
【详解】句意:冬天结冰的道路很危险,我们最好不要在上面跑。分析题干可知,空格处应填形容词,
用于修饰名词roads;结合提示词,空格处应填形容词icy“结冰的”,句首首字母大写。故填Icy。
5.It began to rain (heavy) on my way to school.
【答案】heavily
【详解】句意:开始下大雨的时候,我正在上学的路上。该句句子结构完整,空处需要填副词修饰动词
rain,heavy的副词形式是heavily。故填heavily。
6.—What will you talk about at the class meeting?
—We plan to discuss what we should do (realize) China Dreams.
【答案】to realize
【详解】句意:——在班会上,你们将会讨论什么?——我们计划讨论为了实现中国梦我们应该做什么。
分析句子结构可知,此处需要填动词不定式作目的状语,表示“为了实现中国梦”。故填to realize。
7.He was so (shock) at the news that he could hardly say a word.
【答案】shocked
【详解】句意:他对这个消息很震惊,以至于他几乎说不出一句话。shock“震惊”,根据“was”可知,此
处用形容词作表语,修饰人,用-ed的形容词。故填shocked。
8.Excuse me, but I must say you are (complete) wrong.【答案】completely
【详解】句意:对不起,我得说你完全错了。complete“完全的”,形容词,空处修饰形容词,应用副词,
故填completely。
9.When I was a little girl, I was as happy as a dog with two (tail).
【答案】tails
【详解】句意:当我还是个小女孩的时候,我像一条长着两条尾巴的狗一样快乐。空前有two修饰,名
词应用复数形式,故填tails。
10.As soon as the little boy saw his mum, he (smile) brightly at her.
【答案】smiled
【详解】句意:小男孩一看到他的妈妈,就对她露出灿烂的笑容。根据“As soon as the little boy saw his
mum”可知,时态为一般过去时,结合所给词可知,此处应该填入smile的过去式smiled,作谓语,意为
“微笑”符合题意。故填smiled。
11.You’d better face the challenges (brave) rather than run away from them.
【答案】bravely
【详解】句意:你最好勇敢地面对挑战,而不是逃避挑战。此处修饰动词face用副词bravely“勇敢地”。
故填bravely。
12.Our football team is (weak) than theirs, but we will pull together and never give up.
【答案】weaker
【详解】句意:我们的足球队比他们的弱,但我们会团结一致,永不放弃。根据“than”和提示词汇可知,
is后需填形容词比较级,weaker为形容词weak“弱的”的比较级。故填weaker。
13.The sun (shine) through the window and left a tiny rainbow on the wall.
【答案】shone
【详解】句意:阳光透过窗户照进来,在墙上留下了一道小小的彩虹。根据“...and left a tiny rainbow on
the wall.”和提示词汇可知,and连接并列关系,left为动词过去式,时态为一般过去时,空处需填与left并
列的动词过去式,shone为动词shine的过去式。故填shone。
14.The farmers’ (wife) are cooking lunch for them at home.
【答案】wives
【详解】句意:农民的妻子们正在家里为他们做午饭。根据“are”可知句子主语用名词复数wives“妻子”。
故填wives。
15.It’s (truth) that too many after-school activities may get in the way of our schoolwork.
【答案】true
【详解】句意:的确,太多的课外活动可能会妨碍我们的学业。truth“真实”,名词,这里作表语,需要用形容词true。故填true。
16.The price of the houses in major cities in China has (rise) in the last 20 years.
【答案】risen
【详解】句意:在过去的20年里,中国主要城市的房价上涨了。根据“The price of the houses...has...in the
last 20 years.”以及所给词可知,考查现在完成时have/has done,rise“上升”的过去分词为risen。故填
risen。
17.Look! There is a (wood) house among the trees. It looks really beautiful.
【答案】wooden
【详解】句意:看!树丛中有一座木屋。它看起来真的很漂亮。wood木材(名词);根据空后的名词
“house”可知,此处需要一个形容词修饰名词,wood的形容词“wooden木制的”。故填wooden。
18.In the past, people used (match) to make a fire.
【答案】matches
【详解】句意:在过去,人们用火柴生火。根据所给词以及“people used...to make a fire.”可知,此处应填
名词作宾语,且应填match“火柴”的复数matches,表泛指。故填matches。
19.It seldom snows in some (area) of South China in winter.
【答案】areas
【详解】句意:中国南方的一些地区冬天很少下雪。some后加可数名词复数areas“地区”。故填areas。
20.Selena was sitting in the park and she saw an old friend. (sudden)
【答案】suddenly
【详解】句意:赛琳娜正坐在公园里,突然她看到了一位老朋友。分析句子结构,“Selena was sitting in
the park and”和“she saw an old friend” 是完整的句子,此处需要一个副词来修饰后面整个句子。所给词
“sudden”是形容词,意为“突然的”,其副词形式是“suddenly”,意为“突然地”。故填suddenly。
21.After the storm, the neighborhood was in a mess. trees, broken windows and rubbish were
everywhere. (fall)
【答案】Fallen
【详解】句意:暴风雨过后,附近一片混乱。到处都是倒下的树、破碎的窗户和垃圾。根据“...trees,
broken windows”可知,此处应用形容词fallen作定语,表示“倒下的”,句首单词首字母要大写。故填
Fallen。
22.—How does Jack usually do in classes?
—He used to listen only, but now he is used to (take) down the key words.
【答案】taking
【详解】句意:——杰克通常在课堂上表现如何?——他过去只听,但现在他习惯记下关键词。takedown“写下”,be used to doing sth.“习惯于做某事”。故填taking。
23.I always study English in (silent).
【答案】silence
【详解】句意:我总是安静地学习英语。根据“in”可知空处填名词,介词短语in silence意为“安静地”,
故填silence。
24.We’ve told our daughter not to speak to (strange).
【答案】strangers
【详解】句意:我们已经告诉女儿不要和陌生人说话。strange“陌生的”,形容词,这里是指不要和陌生
人说话,stranger“陌生人”,可数名词,此处用复数表泛指,故填strangers。
25.Mother was sweeping the floor when I (leave) home.
【答案】left
【详解】句意:当我离开家的时候,妈妈正在扫地。该句是when引导的时间状语从句,主句是过去进行
时,从句也应用相应的过去时态。leave表示“离开”,短暂性动词,从句应用一般过去时,此处应填
leave的过去式形式。故填left。
26.You should put the pan on the cooker and then put some oil in it (light).
【答案】lightly
【详解】句意:你应该把锅放在炊具上,然后在里面稍微放一些油。空格处修饰动词短语“put some
oil”,应用副词,light“轻的,少量的”,形容词,其副词是lightly“轻轻地,少许,稍微”。故填lightly。
27.My sister was (read) a book in the study when I arrived home.
【答案】reading
【详解】句意:我到家时,姐姐正在书房看书。when引导的时间状语从句,表示一个动作发生时,另一
个动作正在进行。由was可知,主句应用过去进行时态,填read的现在分词reading。故答案为:
reading。
28.In July of 2021, Henan met the heaviest (rainstorm) in history.
【答案】rainstorm
【详解】句意:在2021年七月份,河南遭遇了历史上最大的暴风雨。空前是形容词最高级the heaviest“最
大的,最猛烈的”,空处应是名词,且用单数形式rainstorm“暴风雨”,作宾语。故填rainstorm。
29.Many children don’t like spiders because they are (scare).
【答案】scary
【详解】句意:许多孩子不喜欢蜘蛛,因为它们很吓人。scare“害怕”,名词或动词。此处应用形容词作
表语,表示“吓人的”,scary“吓人的”符合语境。故填scary。
30.When he saw the thief stealing things in the office, he closed the door and (call) the police.【答案】called
【详解】句意:当他看到小偷在办公室偷东西时,他关上门报了警。and连接并列谓语,根据“closed”可
知用一般过去时,call的过去式called。故填called。
二、根据汉语提示完成单词(本大题共20小题,每小题1分,共20分)
31.A strange thing (突然)happened last night.
【答案】suddenly
【详解】句意:昨晚突然发生了一件奇怪的事情。根据提示汉语“突然”且又用来修饰谓语动词
“happened”可知,要用副词suddenly。故填suddenly。
32.—I hope you can tell us the (实情) of the event.
— Sure, what I said is true.
【答案】truth
【详解】句意:——我希望你能告诉我们事情的真相。——当然,我说的就是真的。根据提示“实情”
可知,这里定冠词the后填不可数名词truth。故填truth。
33.The (落下的) leaves on the ground are in different shapes.
【答案】fallen
【详解】句意:地上的落叶有不同的形状。此处修饰名词leaves用形容词fallen“落下的”。故填fallen。
34.There have been great changes in your hometown (最近), right?
【答案】recently
【详解】句意:你的家乡最近发生了很大的变化,对吧?此处作时间状语用副词recently“最近”。故填
recently。
35.By asking questions, you’ll (完全地) learn more about the way your body works.
【答案】completely
【详解】句意:通过问问题,你会更全面地了解你身体的工作方式。completely“完全地”,副词修饰动词
learn,故填completely。
36.When I saw him, he was (修理) his broken bike.
【答案】repairing/fixing
【详解】句意:当我见到他时,他正在修理他坏掉的自行车。根据“when”和“was”及引导的时间状语从
句可知,此处强调动作正在发生,用过去进行时。repair和/fix表示“修理”。故填repairing/fixing。
37.The workers will the old building because it is too dangerous for people to live in. (拆除)
【答案】take down
【详解】句意:工人将会拆除旧的建筑,因为它对人们来说居住在里面太危险了。take down“拆除”,
will后接动词原形,故填take down。38.They didn’t talk about it later; they just finished dinner in (沉默).
【答案】silence
【详解】句意:他们后来没有谈论它;他们只是默默地吃完晚饭。根据括号中文提示,短语in silence表
示“安静地”。故填silence。
39.I want to open all the (窗户). It’s so hot here.
【答案】windows
【详解】句意:我想打开所有的窗户。这里是如此热。根据中文提示可知,此处应填入window“窗户”或
其变形。又根据空前的“all the”可知,此处需填入window的复数形式,即windows。故填windows。
40.I didn’t hear the (闹钟), so I got up late this morning.
【答案】alarm
【详解】句意:我没有听到闹钟,所以今天早上我起晚了。alarm“闹钟”,此空应填名词单数形式,故填
alarm。
41.Look! There is something (奇怪的) in the sky. What is it?
【答案】strange
【详解】句意:看!天上有奇怪的东西。它是什么?根据汉语提示可知此处应用形容词“strange”,作复
合不定代词“something”的后置定语。故填strange。
42.Ben fell asleep when the wind was (逐渐变弱) down at 3:00 am.
【答案】dying
【详解】句意:凌晨三点风逐渐变弱了,本睡着了。die down“逐渐变弱”,根据“at 3:00 am.”结合“Ben
fell asleep”可知从句是过去进行时,动词用现在分词。故填dying。
43.My mother passed some (火柴)to me in the dark.
【答案】matches
【详解】句意:妈妈在黑暗中递给我一些火柴。match“火柴”,可数名词,被some修饰,应用复数。故
填matches。
44.There are no differences between the two (塔).
【答案】towers
【详解】句意:两座塔之间没有区别。根据中文提示,tower表示“塔”,two后接复数名词,故填
towers。
45.When I got home, my father was (修理,修补) the broken windows.
【答案】repairing
【详解】句意:当我到家时,我的父亲正在修理破碎的窗户。根据汉语提示可知本题考查单词repair“修
理,修补”,动词,由“When I got home”可知句子时态为过去进行时,其谓语结构为“was/were+动词现在分词”,故填repairing。
46.We can learn some new words from the two (章节).
【答案】passages/chapters
【详解】句意:我们可以从这两个章节里学一些新词语。单词passage和chapter均可表示“章节”,在基
数词two后用复数形式。故填passages/chapters。
47.Do you know the boy who is (敲打)the drums?
【答案】beating
【详解】句意:你认识那个打鼓的男孩吗?beat“敲打”,是动词,根据is结合语境可知,此句是现在进
行时,动词用现在分词。故填beating。
48.We should try our best to help people in the poor (地区).
【答案】areas/area
【详解】句意:我们应该尽力帮助贫困地区的人们。“地区,区域” area,是可数名词,这里可以用单
数也可以是复数。故填area/areas。
49.What’s the (日期)of the next meeting?
【答案】date
【详解】句意:下次会议的日期是什么?根据“What’s the…of the next meeting?”和汉语提示可知,考查
词汇date“日期”,由于前面有is,可知date用单数形式,the date of“……的日期”。故填date。
50.The news on TV (报道) that there was a rainstorm in the area.
【答案】reported
【详解】句意:电视新闻报道该地区有暴雨。这是个主从复合句,主句中缺少谓语,“报道”译为动词
report。再由“was”可知用一般过去时,report的过去式reported。故填reported。
三、完成句子(本大题共10小题,每小题3分,共30分)
51.当我到教室的时候,英语老师正在分发试卷。我又迟到了!(hand)
When I arrived at the classroom, my English teacher the test papers. I was late again!
【答案】was handing out
【详解】hand out“分发”,根据“When I arrived at the classroom”可知,此处是强调过去的某一时刻正发
生的事情,因此用过去进行时was/were doing,主语是三单,be动词用was。故填was handing out。
52.每年这个时候公园里的地面上落叶满地。
are all over the ground in the park at this time of the year.
【答案】Fallen leaves
【详解】根据所给汉语意思可知,应该填的是“落叶”,fallen leave表示“落叶”,由are可知主语是复
数形式fallen leaves,句首的单词用大写字母。故填Fallen leaves。53.我们非常震惊,在沉默中吃完了晚餐。
We were really shocked and we finished the rest of our dinner .
【答案】in silence
【详解】根据中英文对照可知,空处应填in silence“沉默地”,是介词短语,此处修饰动词finished。故填
in silence。
54.张家界是一个神奇的地方,它以奇形怪状的岩石而闻名。
Zhangjiajie is a magic land .
【答案】and it is famous for the strange shape of its rocks
【详解】根据句意和题干可知,此句为陈述句,时态为一般现在时态。“Zhangjiajie is a magic land”是一
个完整的句子。此题考查句子”它以奇形怪状的岩石而闻名。”的翻译,故用and连接;it是主语;谓语
动词为is;be famous for“因……而闻名”;the strange shape of its rocks“奇形怪状的岩石”。 故填and it is
famous for the strange shape of its rocks。
55.我进来的时候,他们正在谈论天气。
They were the weather when I came in.
【答案】 talking about
【详解】短语talk about表示“谈论”;这里是when引导的时间状语从句,主句用过去进行时,从句用
一般过去时态。故填talking;about 。
56.不要乱丢垃圾。把它捡起来。(完成译句)
Don’t throw litter around. it .
【答案】 Pick up
【详解】根据中英文提示可知,空格要填pick up表示“捡起”。pick up是动副短语,it是代词,作宾语
放于“pick”和“up”之间。另此句是祈使句,故使用动词原形。故填Pick;up。
57.昨天我打电话给Tom时,他正在为比赛做准备。
Tom the competition when I called him yesterday.
【答案】 was making preparations for
【详解】根据“when I called him yesterday”可知是一般过去时,主句要用过去进行时,其构成为was/were
doing,主语Tom是第三人称单数,用was;“为……准备”make preparations for。故填was;making;
preparations;for。
58.当进行足球赛的时候,你正在做什么?
What were you doing the football game?
【答案】 at the time of
【详解】根据汉语表达可知,空处缺少“当……的时候”的英文表达,at the time of“当……的时候”,固定短语。故填at;the;time;of。
59.我确信你能通过驾照考试。
I that you can pass the driver’s test.
【答案】 am sure
【详解】根据中英文对照可知,空处缺少了“确信”,英文表达为be sure,根据can可知,时态为一般现
在时,主语是I,be动词用am。故填am;sure。
60.一开始,我对那部小说并不感兴趣。
, I didn’t become interested in the novel.
【答案】 At first
【详解】根据题干可知,at first表示“起初,一开始”,句首首字母a需大写。故填At;first。
四、短文填空(本大题共20小题,每小题1分,共20分)
阅读下列材料,在空白处填入适当的内容(1个单词)或括号内单词的正确形式。
Wang Ping is a cleaner. He has worked in a park for 5 years. He is also a good father. Nothing can make
him 61 (happy) than playing with his little daughter in his free time.
Last Tuesday afternoon, while he was cleaning the park, suddenly, he heard a woman crying for help. He
ran up quickly 62 (see) what happened. The woman’s 15-month-old baby girl choked(窒息) on a small
piece of pear and her face turned purple. The baby was too young to save 63 (she) and the mother was so
nervous 64 she didn’t know how to save her daughter properly. 65 (lucky), Wang Ping knew what
to do. He took the baby in his arms without thinking twice. 66 the mother’s help, Wang Ping held the baby
upside down and gave her a few pats on the back. After a short while, he succeeded in getting 67 piece of
pear out of her mouth and the baby 68 (begin) to cry. Her mom was so thankful because her daughter was
saved.
Wang Ping tried his best and saved the baby’s life. In his mind, helping others 69 (be) just helping
himself. He hopes more people can volunteer to help the people 70 need if possible.
【答案】
61.happier 62.to see 63.her 64.that 65.Luckily 66.With 67.the 68.
began 69.is 70.in
【导语】本文是一篇记叙文。文章主要讲述清洁工爸爸王平成功救助一个窒息小女孩的故事,呼吁我们
要尽可能帮助那些需要帮助的人。
61.句意:没有什么比在空闲时间和小女儿玩更让他开心的了。根据“make him”和“ than”可知,此处使用形容词的比较级,happier“更开心的”。故填happier。
62.句意:他很快跑上去看发生了什么。根据“He ran up quickly…(see) what happened.”可知,此处使用
动词不定式表目的。故填to see。
63.句意:孩子太小,救不了她,母亲非常紧张,不知道如何正确地救女儿。根据“The baby was too
young to save”可知,此处使用人称代词宾格形式作save的宾语。故填her。
64.句意:孩子太小,救不了她,母亲非常紧张,不知道如何正确地救女儿。根据“the mother was so
nervous…she didn’t know how to save her daughter properly.”可知,此处为so…that引导的结果状语从句。
故填that。
65.句意:幸运的是,王平知道该怎么做。根据“ (lucky), Wang Ping knew what to do.”可知,此处空位于
句首,使用副词修饰整个句子,Luckily“幸运地”。故填Luckily。
66.句意:在母亲的帮助下,王平把婴儿倒立着抱着,在她背上拍了几下。根据“the mother’s help”可知,
此处为介词短语作状语,with one’s help“在某人的帮助下”,故填With。
67.句意:过了一会儿,他成功地把那块梨从她嘴里拿出来,婴儿开始哭起来。根据“a small piece of
pear”可知,此处特指之前的那块梨。故填the。
68.句意:过了一会儿,他成功地把那块梨从她嘴里拿出来,婴儿开始哭起来。根据“he succeeded”可知,
此处and后句子使用一般过去时,动词使用过去式。故填began。
69.句意:在他看来,帮助别人就是帮助自己。根据“helping others”可知,本句陈述一个事实,动名词
作主语,be动词使用单数is。故填is。
70.句意:他希望如果可能的话,更多的人能志愿帮助有困难的人。根据“help the people…need if
possible.”可知,此处使用介词短语作定语,in need“在困难中,在困境中”。故填in。
阅读下面短文,按照句子结构的语法情况和上下文连贯的要求,在空白处填入适当的词或用括号中所给
词的正确形式填空。每空不超过两词。
There is a brave and clever girl. She saved about one hundred other tourists in 2004 by 71 (warn)
them that a tsunami, a huge ocean wave was on 72 (it) way across the sea. She knew what was happening
73 she learnt about under water earthquakes at school only a few weeks 74 (early), a newspaper
reported.
“I was 75 the beach and the water started to go funny.” Tilly Smith told the reporter from 76
newspaper. “There were bubbles and the water went back 77 (sudden). I knew there was going to be a
tsunami. I told Mum,” she said.
Tilly’s mother and the hotel workers 78 (act) quickly. They told people 79 (run) away from
the beach before a huge wave reached the land. Luckily, no one died.
Tilly’s teacher was very proud of her. She’s a very clever girl... It is very lucky that our class were learningabout this kind of tsunami just two 80 (week) before Christmas,” he told the newspaper.
【答案】
71.warning 72.its 73.because
74.earlier 75.on 76.the 77.suddenly 78.acted 79.to run 80.weeks
【导语】本文是一篇记叙文。文章主要讲述了Tilly根据在学校学到的知识拯救了大约一百名其他游客的
事迹。
71.句意:2004年,她拯救了大约一百名其他游客,警告他们海啸,巨大的海浪正在横渡大海。根据空
前“by”为介词,介词+doing。故填warning。
72.句意:2004年,她拯救了大约一百名其他游客,警告他们海啸,巨大的海浪正在横渡大海。空后
“way”为名词,所以此空填形容词性物主代词作定语。故填its。
73.句意:据一家报纸报道,她知道发生了什么,因为她几周前才在学校了解到水下地震。分析句子可
知,此处缺连词,且空前后两个句子为因果关系,because引导状语从句。故填because。
74.句意:据一家报纸报道,她知道发生了什么,因为她几周前才在学校了解到水下地震。根据语境可
知,此处表示“几周前”a few weeks earlier,固定搭配,故填earlier。
75.句意:我在沙滩上,水开始变得有趣。分析句子可知,此处缺介词,“on the beach在沙滩上”,介
词短语。故填on。
76.句意:Tilly Smith告诉该报记者。上文中“a newspaper reported.”提到了newspaper,所以此处
newspaper前需加定冠词the。故填the。
77.句意:有气泡,水突然回去。本句中“went”为动词,副词修饰动词,所以此空需填副词。故填
suddenly。
78.句意:蒂莉的母亲和酒店工作人员迅速采取行动。整篇时态为一般过去时,所以此处也应用一般过
去时态,动词用过去式。故填acted。
79.句意:他们告诉人们在巨浪到达陆地之前逃离海滩。“告诉某人做某事”tell sb. to do。故填to run。
80.
句意:非常幸运的是,我们班在圣诞节前两周就了解了这种海啸。空前有“two”所以此空用可数名词复
数形式。故填weeks。