人教版（2024）九年级全册Unit 6 When was it invented?综合与测试当堂达标检测题

这是一份人教版（2024）九年级全册Unit 6 When was it invented?综合与测试当堂达标检测题，共20页。试卷主要包含了 A等内容，欢迎下载使用。
I. 听句子,选出句子中所包含的信息 (共5小题;每小题1分,满分5分)
( ) 1. A. scre B. sale C. smell
( ) 2. A. beautiful styles
B. delicius biscuits
C. big fridges
( ) 3. A. tk up B. tk place
C. tk dwn
( ) 4. A. Finally they were safe.
B. They were in danger at last.
C. Finally they met smething dangerus.
( ) 5. A. Bth Jim and Kate enjy inventing things.
B. Neither Jim nr Kate likes inventing things.
C. Either Jim r Kate is interested in inventing things.
ll.听句子,选出该句的最佳答语(共5小题;每小题1分,满分 5分)
( ) 6. A. Over there. B. Srry, I can’t. C. Sure.
( ) 7. A. Tm and Mike. B. Dancing.
C. Over 100 years ag.
( ) 8. A. The cmputer. B. On the playgrund.
C. On the desks.
( ) 9. A. S it is. B. Hld n.
C. It’s my pleasure.
( ) 10. A. In red. B. Sme salt.
C. Abut 5,000 years.
l.听对话和问题,选择正确答案(共8小题;每小题1分,满分 8 分)
( ) 11. What did Tm pick just nw？
( ) 12. What are they talking abut？
( ) 13. Where did Anna g last Sunday？
A. T the Histry Museum.
B. T the Science Museum.
C. T the cinema.
( ) 14. What did she see there？
A. Smething interesting.
B. Sme famus actrs.
C. Sme ld inventins.
( ) 15. What des she think f the visit？
A. Bring. B. Exciting. C. Great.
( ) 16. What is Ruby’s new inventin？
A. A schlbag. B. A cup.
C. A bike.
( ) 17. Hw many legs des it have？
A. Tw. B. Three. C. Fur.
( ) 18. What is it made f？
A. Glass. B. Wd. C. Metal.
IV.听短文和问题,选择正确答案(共7小题;每小题1分,满分7分)
( ) 19. What des the speaker want t invent？
A. A desk. B. A chair.
C. A bed.
( ) 20. What is it made f？
A. Metal. B. Glass. C. Wd.
( ) 21. What can the students d t stp the nise？
A. Push the buttn.
B. Lie dwn and have a rest.
C. Stand up and leave.
( ) 22. Where des Gina Gallant cme frm？
A. America. B. Canada. C. Germany.
( ) 23. What was Gina Gallant’s paper made frm？
A. Fruit. B. Plastic.
C. A kind f vegetable.
( ) 24. When did Gina invent a safer bike hat？
A. At the age f 12.
B. At the age f 13.
C. At the age f 16.
( ) 25. What did Ryan make？
A. Rbts. B. T-shirts. C. Shes.
V. 听短文填空(共5小题;每小题1分,满分5分)
第二部分 语言运用
VI. 完形填空（共15小题；每小题1分，满分15分）
阅读下面短文，从每小题所给的四个选项中选出最佳选项。
We can’t remember clearly when we started t take ur mbiles t a dinner table.This happens a lt, especially 31 _________we g ut t have dinner. Once a dish cmes, instead f lifting ur chpsticks, we take ut ur 32 _________and click （点击）. Later, we pst the phts n scial media, waiting t be “liked”. Then we check ur mbiles frm time t time during the meal, t see 33_________ we get “liked” r nt. We just cannt leave ur mbiles fr nly a meal.
Des that sund 34 _________t yu? D yu d that ften? If nt, hw d yu 35 when thers d that when having dinner with yu?
A recent study suggests that what we are 36_________ t ding is nt s gd. Spending time taking phts f 37_________ makes the fd less pleasant. T test this, sme researchers did an experiment. Sme peple were asked t take phts befre they culd enjy fd. As a result, it shwed that the mre phts they 38_________ , the less delicius the fd seemed t them. S, why nt stp taking phts and just enjy the fd in frnt f yu?
Besides the scientific result, there are als sme ther 39 _________influences f taking phts f fd befre meals. After 40 _________the phts nt the Internet, ne will nt be able t cntrl himself and check his mbile many times.“Des everyne like my phts? I hpe a lt f peple like 41_________ !” It seems that yur mbile secretly calls yur name all the time, even when yu are 42 _________real peple.
S, next time yu 43 _________with yur family r friends, hw abut nt taking phts f fd? Let the fd be delicius as it is, and 44_________ yur life with peple arund yu. Trust me, and it will be a 45 _________time.
( ) 31. A. when B. until
C. since D. because
( ) 32. A. bks B. mbiles
C. cameras D. watches
( ) 33. A. when B. hw
C. what D. whether
( ) 34. A. new B. similar
C. kind D. lucky
( ) 35. A. d B. hpe
C. feel D. say
( ) 36. A. allwed B. used
C. hped D. expected
( ) 37. A. friends B. family
C. fd D. peple
( ) 38. A. tk B. take
C. have taken D. are taking
( ) 39. A. bad B. gd
C. small D. large
( ) 40. A. taking B. psting
C. thrwing D. giving
( ) 41. A. them B. it
C. me D. us
( ) 42. A. n B. t
C. frm D. with
( ) 43. A. eat ut B. set ut
C. cme up D. have fun
( ) 44. A. treat B. avid
C. talk D. share
( ) 45. A. busy B. hard
C. wnderful D. safe
VIl.[2023 威海中考改编]短文填空(共10小题;每小题1分,满分 10 分)
阅读下面短文,在空白处填入一个适当的单词(有提示词的,填入所给单词的正确形式)。
第三部分 阅读
Vl.阅读理解 (共15小题;每小题2分,满分 30分)
阅读A、B、C、D四篇材料,从每小题所给的四个选项中选出最佳选项。
A
( ) 56. What’s TRUE abut the glue？
A. It’s made f gecks’ feet.
B. We mainly use it under water.
C. It’s similar t gecks’ feet.
D. We mainly use it t repair planes.
( ) 57. What des the underlined wrd “them” refer t?
A. Gecks. B. Sharks.
C. The materials. D. The surfaces.
( ) 58. Where des the text mst prbably cme frm？
A. A magazine abut plants.
B. A magazine abut animals.
C. A magazine abut materials.
D. A magazine abut inventins.
B
The Dlphin 1 is a kind f intelligent water rescue （救援） rbt. It is independently develped by Yunzhu Technlgy, a cmpany frm Guangdng Prvince.
The rescue rbt became famus fr its successful rescue f a by wh was washed away by waves in Weihai, Shandng Prvince n Aug. 9, 2022. The Dlphin 1 has many advantages. Fr example, it has high flatage （漂浮性）, and its directin can be cntrlled. The Dlphin 1 can verturn （翻转） t adjust its psitin even in dangerus water cnditins by itself. It is nt hard t be remte-cntrlled （遥控） with ne hand and the persn wh uses it des nt need t have prfessinal training befre using it. When ne accident happens, nly ne t tw peple are required t perate （操作） the rbt fr rapid rescue.
Since it was put int use, the Dlphin 1 has saved several peple’s lives in Zhuhai’s Wanshan Island and castal areas f Weihai. It has been put int peratin in rescue tasks in Jiangxi and Henan prvinces.
At present, the intelligent water rescue rbt has been widely used in China. And mre than 40 cuntries, including the United States f America, Spain, Italy, and Australia, have intrduced the Dlphin 1 fr rapid water rescue peratins.
( ) 59. What des Paragraph 2 mainly talk abut？
A. Advantages f the water rescue rbt.
B. Research f the water rescue rbt.
C. Opinins n the water rescue rbt.
D. What the water rescue rbt lks like.
( ) 60. Where has the water rescue rbt been put int peratin in rescue tasks？
A. In Hunan and Jiangxi.
B. In Jiangxi and Henan.
C. In Hunan and Henan.
D. In Beijing and Shandng.
( ) 61. Which part f a newspaper might the passage cme frm？
A. Travel. B. Science.
C. Culture. D. Sprts.
C
Accidental inventins change ur lives
Mst f yu enjy eating ptat chips. D yu knw? The inventin f ptat chips was actually an accident. In fact, scientists have created many inventins by accident. Let’s take a lk at a few f them. Each ne has an interesting stry. Ptat chips（薯片）
Gerge Crum was a ck in New Yrk. He invented ptat chips in 1853. One day, a custmer said that his French-fried ptates were t thick. Crum thught the custmer was rude and wanted t teach him a lessn. He cut the ptates int very thin slices（片） and fried them until they were crispy and brwn. Surprisingly, the custmer lved them.
Penicillin（青霉素）
In 1928, British scientist Alexander Fleming went n vacatin. But he frgt t cver up sme bacteria（细菌） befre he left his lab. When he came back, he fund there was sme mld （霉菌） grwing n the bacteria. The mld stpped the bacteria frm grwing. Fleming later fund penicillin in the mld.
Micrwave vens（微波炉）
One day in 1945, US engineer Percy LeBarn Spencer was wrking n radar tubes（磁控管）. He nticed that a chclate bar in his pcket melted while he was wrking. He fund ut the micrwave frm the tube melted it. The engineer started t wrk ut hw t ck with the micrwave. In 1947, the first micrwave ven was brn.
( ) 62. Why did Crum cut the ptates int very thin slices？
A. Because he liked thin slices.
B. Because he wanted t teach the custmer a lessn.
C. Because he tried a new idea.
D. Because he had much il in the kitchen.
( ) 63. Where did Fleming find penicillin？
A. In the lab. B. In the kitchen.
C. In the living rm. D. In the classrm.
( ) 64. 新考法 写作手法 The writer supprts his wn idea by_
A. listing numbers B. raising questins
C. cmparing facts D. giving examples
( ) 65. The writer wrte the passage in a tne(语气)f_
A. wrry B. surprise
C. disappintment D. anger
D [2023 江西中考]
A Bright Idea
Evans Wadng was frm a village f Africa. He had t d hmewrk by the light f a kersene lamp（煤油灯）. Evans’ eyes hurt and this made studying difficult. It was cmmn in his village. Many children left schl fr this reasn... s they remained pr fr the rest f their lives.
Althugh studying was difficult, Evans was an excellent student and went t a university. He cntinued t wrry abut the kersene lamp. By this time, he realized it was nt just bad fr schlchildren but fr the whle family. First, it can cause illnesses such as cughs. Als, the light can hurt peple’s eyes. Besides, it can lead t fires. Lastly, kersene is expensive, s families have less mney fr fd. It was difficult t cme up with a different kind f lamp that was cheap and gd fr the envirnment. Yet Evans did nt give up.
One day, he had an idea. He culd use a small slar（太阳能的） light. Sunlight is free and slar pwer is gd fr the envirnment. Evans built his first slar lamp, and it wrked. He began t build mre lamps and sent them t lcal families. An rganizatin heard big difference. abut this and prvided mney fr him t build mre slar lamps.
Each lamp nly cst $20. Hwever, this was a lt f mney t many villagers, wh nly earned arund $34 a week, s Evans made sure he kept the cst dwn. First, Evans used recycled materials. Next, vlunteers built the lamps. Finally, peple frm many cuntries gave away mney t his team, s the lamps were usually free.
Thusands f peple had safe light. Julia, a mther f three, said, “Thanks t Evans, my children have light t read, and I have my wn light t ck. ”The slar lamps made a big difference.
( ) 66. What des the underlined wrd “this” in Paragraph 1 refer t？
A. Leaving schl. B. Ding hmewrk.
C. Having eye prblems. D. Having a bright idea.
( ) 67. Hw many prblems abut kersene lamps are mentined accrding t Paragraph 2？
A. 6. B. 5.
C. 4. D. 3.
( ) 68. 新考法 句子排序] Put the fllwing infrmatin int crrect rder accrding t the passage.
a. Evans went t a university.
b. Thusands f peple had safe light.
c. His first slar lamp was invented.
d. Kersene lamps hurt Evans’ eyes.
e. Recycled materials were used in the lamps.
f. Peple frm many cuntries gave away mney.
A. d-a-c-e-f-b B. d-f-b-a-e-c
C. a-d-f-e-c-b D. a-e-c-d-f-b
( ) 69. Why des the writer give Julia’s example in Paragraph 5？
A. T share Julia’s experience.
B. T shw Evans’ influence.
C. T describe Evans’ feelings.
D. T intrduce Evans’ inventin.
( ) 70. What is Evans like accrding t the passage？
A. Plite, talented and humrus.
B. Quiet, smart and hnest.
C. Humrus, clever and friendly.
D. Hard-wrking, lving and creative.
|X.[2023 龙东中考改编]阅读表达(共5小题;每小题2分,满分 10 分)
My name is Bb. Many peple ask me what my favrite inventin is. I find it very hard t answer the questin, because there are s many things in my life that I can chse. Hwever, I have chsen a pen. Dn’t yu think it’s surprising?
T mst peple, a pen is very bring. But t me, it stands fr pssibilities. There are s many things yu can d with a pen. Yu can write a nvel r a sng, recrd infrmatin, r draw a picture.
A pen is like the beginning f smething amazing t me. Every day, I write a new page with my pen, and I am slwly making a path （路） fr my future. Maybe I will be a scientist and change the wrld with my discveries. Maybe I’ll becme a musician and tuch peple’s hearts with my music. Or perhaps I will be a writer and mve peple thrugh wrds.
There are s many pssibilities as t what I will d with my life in the future, but I knw that with the pen in my hand, I will write a gd future fr myself.en in my hand, I will write agd future fr myself.
71. What is the writer’s favrite inventin？
_______________________________________________________________
72. What may peple feel after they knw the writer’s chice？
_______________________________________________________________
73. What's the writer’s favrite inventin like？
_______________________________________________________________
74. Wh d yu think can mve peple thrugh wrds？
_______________________________________________________________
75. D yu like the pen？ Why r why nt？
_______________________________________________________________
第四部分 情景交际
X.补全对话(共5小题;每小题2分,满分10分)
根据下面的对话情景,在每个空白处填上一个适当的句子,使对话的意思连贯、完整。
A: Hi, Wang Ping, lng time n see! What are yu ding these days?
B: I’m busy having a reading reprt. S I’m reading a bk named A Christmas Carl.
A: Oh, really? 76. ________________________________________________ ?
B: Charles Dickens.
A: 77. ________________________________________________?
B: Yu cannt imagine hw much I lve it. What are yu ding these days?
A: I am preparing t jin in a kite making cmpetitin.
B: That’s really cl. Sunds interesting.78. _____________________________
A: It’s usually made f bamb and clrful paper.
B: I have never made a kite befre.79. _________________________________?
A: N, it isn’t. I think if yu put yur heart int it, it’s easy.
B: 80. ________________________________________________?
A: Of curse yu can! When I finish it, we can fly the kite tgether.
第五部分 写作
XI.书面表达(满分 15分 )
在我们的学习生活中,经常会用到手机、电脑等发明。有人认为它们为我们带来了极大的便利,也有人认为它们危害无穷。请你用英语写一篇短文阐明我们应该如何看待和使用这些发明。
内容包括:
(1)请你从以上提示中选择某个观点;
(2)围绕以上观点,描述你曾经历过的一件事;
(3)这件事带给你的感受。
写作要求:
1.条理清楚,行文连贯,书写规范;
2.文中不要出现所在学校的校名和师生姓名;
3. 词数 80左右。开头已给出,不计入总词数。
There’s n dubt that inventins play an imprtant part in ur everyday lives.
___________________________________________________________________
_______________________________________________________________________________________________________________________________________________________________________________________________________________
参考答案
I. 1-5 CBBAA
II. 6-10 CCAAB
III. 11-12 AB 13-15 ACC 16-18 BBC
IV. 19-21 BCC 22-25 BCAA
V. 26. 1886 27. gave 28. cups
29. restaurants 30. 1950s
VI. 31-35 ABDBC 36-40 BCAAB
41-45 ADADC
VII 46. n 47. difference 48. an
49. quickly 50. sner 51. earthquakes
52. cming 53. because 54. bring
55. them
VIII. A)56. C 57. C
58. D 【点拨】推理判断题。本文主要介绍了一些发明的来源。因此，文章最可能来自一本关于发明的杂志。故选D。
B）59. A 【点拨】段落大意题。根据“The Dlphin 1 has many advantages”可知，本段主要介绍了它的优势，故选A。
60. B
61. B 【点拨】推理判断题。通读全文可知，本文介绍了一种智能水上救援机器人，属于科学范畴，故选B。
C） 62-65 BADB
D）66. C 【点拨】词义猜测题。根据“Evans’ eyes hurt and this made studying difficult. ”可知，Evans 的眼睛疼，这使学习很困难。因此this 指代“眼睛疼”这件事。故选C。
67. C【点拨】细节理解题。根据“First, it can cause illnesses such as cughs. Als, the light can... Besides, it... Lastly, kersene is expensive... ”可知，首先，它会导致咳嗽等疾病。而且，光线会伤害人们的眼睛。而且，它还可能导致火灾。最后，煤油很贵，所以家庭买食物的钱更少。因此，第二段一共提到使用煤油灯的4 个问题。故选C。
68. A
69. B 【点拨】推理判断题。根据“Thusands f peple had safe light... The slar lamps made a big difference. ”可知，举Julia 的例子是为了说明Evans 的发明给人们带来的影响。故选B。
70. D
IX. 71. A pen. 72. Surprised.
73. The beginning f smething amazing.
74. A writer.
75. Yes, I d. Because it stands fr pssibilities. /N, I dn’t. Because it’s bring.
X. 76. Wh is the writer / Wh wrte the bk / Wh was the bk written by
77. Hw d yu like it/What d yu think f it / What d yu
feel abut it / What’s yur feeling abut it
78. What is a kite usually made f
79. Is it very difficult
80. Can I have a lk at yur kite
XI. One Pssible Versin:
There’s n dubt that inventins play an imprtant part in ur everyday lives. They’ve made ur lives mre and mre cnvenient. Hwever, it’s necessary fr us t make gd use f them.
When I was in Grade Seven, I began t play games n my phne. The games were interesting and I felt kind f relaxed when playing them. Hwever, every cin has tw sides. Gradually, I fund that it was getting mre and mre difficult fr me t pay attentin in class. And since I seldm played sprts with friends, I gt heavier and heavier. Finally, I realized that thugh the phne is a great inventin, I shuldn’t let it influence my schlwrk and health. S I made a decisin t break the bad habit.
Nw, I’m ne f the tp students in my class and I’m much fitter. As yu can see, thugh the phne is a great inventin, we shuldn’t spend t much time n it.
听力材料
I. 听句子, 选出句子中所包含的信息
下面你将听到五个句子, 每个句子读两遍。请你听完句子的第二遍朗读后, 从每小题所给出的A、 B、 C 三个选项中, 选出包含所听信息的选项。
1. The terrible smell frm the factry makes us feel terrible.
2. These delicius biscuits are very ppular amng the students.
3. The stry tk place in this village lng ag.
4. They were ut f danger in the end.
5. Nt nly Jim but als Kate is interested in inventing things.
II. 听句子, 选出该句的最佳答语
下面你将听到五个句子, 每个句子读两遍。请你听完句子的第二遍朗读后, 从每小题所给出的A、 B、 C 三个选项中, 选出该句的最佳答语。
6. The shirt is s cl. Wuld yu like ne?
7. When was basketball invented?
8. What inventin d yu think is the mst imprtant?
9. The zipper is such an imprtant inventin.
10. What d yu want t put n the ptat chips?
III. 听对话和问题, 选择正确答案
下面你将听到四组对话和八个问题, 每组对话和问题读两遍。请你听完对话和问题的第二遍朗读后, 从每小题 所给出的A、B、C 三个选项中, 选出正确答案。
请听第一组对话, 回答第11 题。
M: The strawberries n the table lk delicius. Where did yu get them?
W: They were picked by Tm frm the garden just nw.
Questin N. 11: What did Tm pick just nw?
请听第二组对话, 回答第12 题。
M: D yu knw wh invented the telephne?
W: I knw Bell invented the telephne, which changes the wrld a lt.
Questin N. 12: What are they talking abut?
请听第三组对话, 回答第13~15 题。
M: Hell, Anna. Where did yu g last Sunday?
W: Hi, Jim. I went t visit the Histry Museum with my cusin.
M: Really? Is there anything new n shw?
W: Yes，we saw sme ld inventins like the ld phne, the ld cmputer and the ld TV.
M: The ld phne? When was it invented?
W: In 1876.
M: Did yu see the ld light?
W: Yes, actually it is called the bulb. It was invented by Edisn.
M: What d yu think f the visit?
W: It was great. I learned a lt during the visit.
M: Can I g with yu next time?
W: Of curse. I will call yu next time.
Questin N. 13: Where did Anna g last Sunday?
Questin N. 14: What did she see there?
Questin N. 15: What des she think f the visit?
请听第四组对话, 回答第16~18 题。
M: Hi, Ruby. Welcme t my huse. Glad t meet yu. What’s that thing with three legs?
W: Hi, Bb. It’s a cup.
M: A cup? It’s very strange. I’ve never seen a cup with three legs.
W: Yeah. It is my newest inventin. It is used fr drinking milk. Is that special?
M: Yes. What is it made f?
W: It is made f metal.
M: Hmm. It’s interesting. Yu are very clever and yu are ging t be a great inventr in the future.
W: Thank yu very much. It is my dream.
Questin N. 16: What is Ruby’s new inventin?
Questin N. 17: Hw many legs des it have?
Questin N. 18: What is it made f?
IV. 听短文和问题, 选择正确答案
下面你将听到两篇短文和七个问题, 短文和问题读两遍。请你听完短文和问题的第二遍朗读后, 根据所听内容,从每小题所给出的A、 B、 C 三个选项中, 选出正确答案。
请听第一篇短文, 回答第19~21 题。
Hi, everyne. As we all knw, many great inventins have brught great changes t ur life. I think we students can als invent smething. Tday I’m glad t be here t talk abut what I’d like t invent. I want t invent a chair that’s gd fr students’ health. It will be made f wd. There will be tw sensrs in it—ne n the seat, and the ther n the back f the chair. When the student desn’t sit straight, the chair will remind him. If he sits n the chair fr ver ne hur, it will make a nise. It wn’t stp until the student stands up and leaves.
Questin N. 19: What des the speaker want t invent?
Questin N. 20: What is it made f?
Questin N. 21: What can the students d t stp the nise?
请听第二篇短文, 回答第22~25 题。
Canadian teenager Gina Gallant has always been an inventr. She became interested in science at the age f fur when her father tk her t science fairs. Sn after she started schl, she made a kind f paper ut f a kind f vegetable fr her science prject! At the age f 12, she invented a safer bike hat fr kids. She did this after her little brther’s accident. And at the age f 16, Gina invented a new kind f rad material. 18-year-ld Ryan Pattersn is als an inventr. When he was 16, he made rbts. Nw he has invented a glve which can translate sign language int letters fr peple wh can’t hear.
Questin N. 22: Where des Gina Gallant cme frm?
Questin N. 23: What was Gina Gallant’s paper made frm?
Questin N. 24: When did Gina invent a safer bike hat?
Questin N. 25: What did Ryan make?
V. 听短文填空
下面你将听到一篇短文, 短文读两遍。请你听完短文的第二遍朗读后, 根据短文的内容和提示, 在信息表中相应的横线上填入所缺信息。
The dishwasher was invented by a wman called Jsephine Cchrane in 1886. She was a rich American wh gave a lt f dinner parties. But she was angry that her servants used t break plates and cups when they were washing them after the party. S Jsephine decided t try and invent a machine which wuld wash a lt f plates and cups safely. Jsephine Cchrane expected peple t welcme the new inventin, which she intrduced t the public at the 1893 Wrld’s Fair, but nly the htels and large restaurants were buying her dishwasher. Dishwashers didn’t becme ppular with the public until the 1950s. Tday the dishwasher is used by millins f peple all ver the wrld.
Infrmatin Sheet
26. The dishwasher(洗碗机) was invented in_________.
27. It was invented by Jsephine Cchrane, a rich American wh _________lts f dinner parties.
28. It was used t wash a lt f plates and_________safely.
29. The htels and large _________bught it at first.
30. It didn’t becme ppular with the public until the_________.
OPINION
AI
In March, we went t Shenzhen Bay Schl t recrd students’ pinins 46. _________hw humans and AI（人工智能）get alng.
Andy—15 years ld
A huge 47. _________（different） between AI and humans is that rbts dn’t create new things, and they dn’t get bred with things. Take the flr-cleaning rbts as 48. _________example: They can sweep the flr fr many years withut getting bred. We humans wuld get bred quite 49. _________（quick）. We want t create new things, and that’s where we have an advantage ver AI.
Eileen—13 years ld
I want t add a pair f “super-lng-distance” glasses（千里眼） in my eyes s that I can see interesting r dangerus things 50. _________（sn）. I culd lk ut f the windw and see peple I miss far away. I culd als predict 51. （_________earthquake）. In this way, I can help warn peple f the 52. _________（cme） danger.
Eva—14 years ld
I dn’t want my memries t be changed r imprved, 53. _________every memry is beautiful and wrth recalling. But if they must be changed r imprved, I wuld 54. _________（bring） back all the memries I had as a baby that I’ve frgtten. My family is always happy whenever they talk abut when I was a baby. I think they wuld be gd memries, and I wish I culd have 55. _________（they） back.
Gecks can run up walls. That’s because their feet have lts f small hairs. Scientists have used this idea t develp interesting glue. It’s pssible t re-use the glue ver and ver again. It can wrk in space and under water. We can use it t repair planes, and it can even stick yur TV t the wall at hme!
Have yu ever nticed hw water just falls ff ltus leaves? Scientists find smething funny: water desn’t stick t the surface f ltus leaves, and what’s mre amazing, the water cleans that leaf as it mves ver it. Scientists have nw develped materials and they can d the same thing. We use them n rfs and even snwbards. Yu can even paint the utside f huses and then the walls dn’t get dirty!
Sharks are the mst successful animals in the sea. Why? One reasn is that they can mve very fast because they have great skin. If yu lk at the skin thrugh a micrscpe（显微镜）, yu can see many little “teeth”. They have lines n them, and they can help sharks mve very fast. Scientists have used the shape f the skin t develp materials fr super-fast swimsuits（游泳衣）.
Maybe we use Velcr（尼龙搭扣） every day. Gerge de Mestral invented it in 1948 after a walk with his dg. He was pulling sme seeds f a plant frm his dg’s fur when he saw that there were little hks（钩） all ver the seeds. The hks made the seeds stick t the dg. S the idea fr Velcr was brn and nw it’s difficult t imagine a wrld withut it!