It doesn't take decades of life experience to have a great idea, as many of these young inventors have proved.
The Electronic Television
The electronic television was first designed by a 14-year-old kid in 1920. Philo Taylor Farnsworth shared his concept of an image transmitting (影像传送) device, an early design of the electronic television, with his science teacher, drawing diagrams on several blackboards in class.
By the age of 21 Farnsworth had a working model which served as a basis to all later development and versions of electronic televisions, After discovering a collection of technology magazines in the attic (阁楼) of his family's new home, he developed a passion and interest in electronics, which led him to explore inventions in the field of, specifically, the image transmission.
In 1927, a few years out of high school, Farnsworth was the first inventor to transmit a television image of a dollar sign, composed of 60 horizontal lines.
Braille Language
Louis Braille suffered a serious eye injury when he was just 3 years old. Not only did the accident cause him blindness on that side, but the infection spread and blinded the other eye as well. After more than a decade of struggling with the slow system of tracing his finger over raised letters, Braille was 12 when he learned of a method of silent communication originally created for the French military. He simplified it, and in 1824 the Braille language was born.
Popsicles (冰棍)
A lot of kids are easily distracted (分散注意力)—and thanks to the short attention span of 11-year-old Frank Epperson we now have popsicles. In 1905, Epperson, a San Francisco native, was stirring powdered drink mix into a cup of water when something else caught his attention. The mixture was forgotten outside the door, and when Epperson rediscovered the drink in the morning, it was a deliciously portable frozen popsicle. After years of making the frozen treats for friends, and eventually his own. children, Epperson filed for a patent in 1924.
1.Who contributed his intelligence to the invention of TV?
A.Philo Taylor Farnsworth
B.Farnsworth's science teacher.
C.Louis Braille.
D.Epperson.
2.Which invention was accidentally made because of poor concentration?
A.The Electronic Television.
B.The Braille Language.
C.Dollar Sign.
D.Popsicles.
3.What do the three inventions have in common?
A.They were all designed for the sake of kids.
B.They were all made by young boys.
C.They were all made in the 20th century.
D.They were all created within a few years.
假定你是李华，你校交换生Tom发邮件询问你校即将来临的艺术节，请你写封邮件回复他。内容包括：
1. 时间和地点；
2. 内容；
3. 邀请Tom参加。
注意：1.词数100左右；
2.可以适当增加细节，以使行文连贯。
Dear Tom,
__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Yours,
Li Hua
假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（∧）,并在其下面写出该加的词。
删除：把多余的词用斜线（\）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1.每处错误及其修改均仅限一词；
2.只允许修改10处，多者（从第11处起）不计分。
Last weekend, I went hike with some friends. Setting off early in the morning, we gathered at the gate of a park in ours city. Then we headed for our destination. We have planned to climb a hill near the park. On the way, we talked, laughed or sang happily. It took us three hour to reach the top. The wonderfully view from the top made all the efforts worthwhile. We had a nice rest and picnic, sharing that we carried in our bags each other. At about four in the afternoon, we began our back trip. It was so a nice experience to get close to the nature and enjoy fresh air that we had a great day.
阅读下面短文，在空白处填入1个适当的词或括号内单词的正确形式。
This story happened to me last Christmas Eve. I was in the Dollar Tree with1.（I）son looking for a particular item. Suddenly, a young girl 2.（come）up to us, said
Merry Christmas," and stuck something into my hand. She ran off before I could say a word or realize what was happening. I took it, 3.（think）it was just a kid's homemade card or a religious tract（册子）. Then I saw it was 4. envelope and was sort of afraid to open it. I walked around the store a bit and my son told me to go ahead and open it, so I did. There was a $ 100 bill! I 5.（actual）didn't know if it was real 6. I had never seen one of the new $ 100 bills before. I am not a needy person.
When my adult 7.（kid）heard about this, they teased me about "looking homeless. ” Of course I passed on the gift to a 8.（much）deserving person. Anyway, yes, I would take a gift 9. a stranger. People do this as a random act of kindness. It spreads the holiday spirit. Sometimes I do random acts of kindness for strangers, too, and it 10.（make）me feel good.
In 2016, I was part of a group sponsoring a family of refugees（难民）.Marwa Ataya and Salem Ajaj had _______ their country with three kids. They _______ in our hometown of Victoria. That year, we drove them to doctor's appointments and _______ them find housing furnish their home and enroll（登记）their _______ in school. They opened a_______ store.
Over time, we _______a friendship, celebrating our kids' birthdays together and chatting whenever we _______ at their store.
In March 2020, my family traveled to Mexico. When we left Canada, North Americans weren't worried about COVID-19. But the situation changed _______.We were still _______when the Canadian Government's recommendation against travel was released. Upon ________, we decided to self-isolate（(自我隔离），just to be safe. That ________ not leaving the house for 14 days—not even to go to groceries.
Partway through our self-isolation I ________ a text from Marwa saying she was outside our house. I opened the door to seven big bags of groceries. Marwa was standing a ________ distance away. She'd brought my family necessaries. I was so ________knew she and her husband were busy at home. That they took the time to care for us was incredibly ________. I would have liked to give her a ________, but I couldn't.
Later, I ________ she'd also dropped off groceries for my parents. Given that they're in their 80s, this was a huge ________. I insisted on paying Marwa. She just refused.
I hope that people will remember how much refugees do for the ________. Canada is a kind and rich country because of the ________ of newcomers. I hope Canadians will step up and help them get to safety.
1.A.fled B.ruined C.betrayed D.reached
2.A.kept B.arranged C.settled D.wandered
3.A.helped B.directed C.let D.watched
4.A.parents B.employees C.friends D.children
5.A.food B.grocery C.fruit D.vegetable
6.A.developed B.formed C.hit D.found
7.A.ate B.played C.. shopped D.worked
8.A.recently B.slowly C.quickly D.finally
9.A.relaxed B.abroad C.nervous D.aboard
10.A.leaving B.hearing C.landing D.returning
11.A.meant B.announced C.showed D.required
12.A.heard B.got C.remembered D.met
13.A.special B.remote C.short D.safe
14.A.moved B.welcome C.interested D.surprised
15.A.smart B.active C.ambitious D.kind
16.A.praise B.comfort C.hug D.smile
17.A.asked B.argued C.hoped D.learned
18.A.secret B.relief C.trade D.challenge
19.A.people B.world C.country D.planet
20.A.preparations B.contributions C.congratulations D.expectations
As tech gets ever more clever, it opens possibilities - not just for business but for cybercriminals（网络罪犯）.Companies are being kept on their toes to find the most up-to-date security. 1. However, the real question is, "How can we use this securely?"
AIs may make it easier to attack company systems. They also give security experts new ways to detect problems and free them up from repetitive（重复的）work. 2.
AIs also provide new solutions for security operation centers. 3. This job used to be done by skilled analysts（分析师）. But machine learning can now spot 80 percent of false positives, leaving the analysts to work on the potentially harmful 20 percent.
AIs are very good at recognizing new things which are potentially a problem.4.They spot new threats because they've learned what looks normal and what doesn't. You have to accept you will be attacked and deal with it like an immune system would. The next step is to allow Al systems to take action in real time, so you have self-defending networks.5.
A.So they can focus their efforts where they are needed most.
B.This includes old and new tech working side by side.
C.They're a bit like the human immune system.
D.For example, it is very good at identifying misleading security alarms.
E.It's vital to have a right view of how technology is actually used.
F.Then you will have an Al reacting to attacks and you'll never even know it.
G.When they adopt new technology, they often ask themselves, "Is this secure?"
