1 . Welcome
This course explores the concepts and algorithms(算法) at the foundation of modern artificial intelligence, diving into the ideas that give rise to technologies like game-playing engines, handwriting recognition, and machine translation. Through hands-on projects, students gain exposure to the theory behind graph search algorithms, classification, and other topics in artificial intelligence and machine learning as they incorporate them into their own Python programs. By course’s end, students emerge with experience in libraries for machine learning as well as knowledge of artificial intelligence principles that enable them to design intelligent systems of their own.
Requirement
CS50x or at least one year of experience with Python.
How to Take this Course
Even if you are not a student at Harvard, you are welcome to “take” this course for free via this OpenCourseWare by working your way through the course’s seven weeks of material. If you’d like to submit the course’s seven projects for feedback, be sure to create an edX account, if you haven’t already. Ask questions along the way via any of the course’s communities!
If interested in a verified(认证的) certificate from edX enroll at cs50.edx.org/ai instead.
If interested in a professional certificate from edX, enroll at cs50.edx.org programs/ai instead.
If interested in transfer credit and accreditation from Harvard Extension School, register at web.dce.harvard.edu/extension/csci/e/80 instead.
If interested in transfer credit and accreditation from Harvard Summer School, register at web.dce.harvard.edu/summer/csci/s/80 instead.
You are free to:
Share—copy and redistribute the material in any medium or format
Adapt—remix, transform, and build upon the material
1. What does the course focus on?| A．Diving into the ideas that give rise to handwriting recognition. |
| B．Teaching the concepts and algorithms of artificial intelligence. |
| C．Offering learning or teaching materials on artificial intelligence. |
| D．Providing students with experience in library for machine learning, |
| A．A student interested in an authorized certificate from edX. |
| B．A student interested in a professional certificate from edX. |
| C．A student interested in transfer credit from Harvard Extension School. |
| D．A student interested in transfer credit from Harvard Summer School. |
| A．Students can integrate the materials into their own program. |
| B．Teachers can use the course’s materials without restriction. |
| C．Any student without related experience can take this course. |
| D．Students must create a new edX account for taking the course. |
1. What was the man’s attitude toward advertisements?
| A．Objective. | B．Supportive. | C．Critical. |
| A．From her phone. | B．From television. | C．From a computer. |
| A．Its inspiring plot. |
| B．Its well-known actors. |
| C．Its vivid images and sound effects. |
3 . Sheridan College is located near Toronto, Canada, consisting of Davis Campus, Trafalgar RoadCampus and Hazel McCallion Campus. It offers a variety of scholarships and services to students. One of its advantages is that it offers on-campus residences apart from home-stay alternatives for international students.
Sheridan offers three on-campus residences — one at the Davis Campus and two at the Trafalgar Road Campus. The Davis residence in Brampton houses 350 students. The Trafalgar Road residences in Oakville collectively house 824 students. Students attending the Hazel McCallion Campus can conveniently live at the Davis residence. You can use public transportation to travel between the three campuses.
Residence features:
* Fully-furnished suites (公寓) shared with one roommate. Each suite includes:
+ 2 separate bedrooms, each with a double bed, desk and chair, dresser, closet organizer and television.
+ A kitchen with a full-sized fridge, microwave, seating for 2 and plenty of storage.
+ A three-piece bathroom with plenty of storage.
* Safety and security — our residences are protected 24 hours a day.
* Resident Advisers who host multiple residence events throughout the academic year. These events are all about social interaction, community building, and personal career development.
* Wi-Fi
* Common spaces:
+ Fitness rooms
+ Games rooms
+ Laundry rooms
+ Study areas
Guarantee your spot in residence for the 2024-25 academic year!
* Applications are available: February 1-March 31, 2024.
* If you’re a Year I student, and you apply by April 30, 2024, your acceptance into residence is guaranteed.
* Residence rates: Trafalgar Road: $8,535
Davis: $8,165
* Note: Flexible payment plans are available.
You don’t need to wait for your program acceptance! Please contact residence management directly for a personalized accommodation plan.
1. What can students enjoy in the residence?| A．Being guarded the whole day. | B．Hosting multiple residence events. |
| C．Washing clothes in their own suites. | D．Living in a separate suite alone. |
| A．The college only offers on-campus residences. |
| B．The on-campus residences can house more than 1,000 students. |
| C．Applications must be handed in before March 31, 2024. |
| D．You can’t arrange your personal accommodation before you are accepted. |
| A．Movie amateurs. | B．International students. |
| C．Community residents. | D．Language learners. |
4 . Tutor Wanted
Teach a kindergartener how to read online.
Become a volunteer tutor with Learn To Be! LTB tutors are dedicated volunteers who believe deeply in educational equity (公平). Our tutors volunteer their time to make the lives of under-served K-12 kids and their families easier, their opportunities greater, and their dreams bigger. Commit to tutoring at least 2 times per week for 3 months or longer. Support your students with homework help or use the resources provided by LTB to create your own lesson plans for your student.
Visit our website to apply: https://www.learntobe.org
Tutor adults in English
The South Bay Literacy Council is an all-volunteer, non-profit organization dedicated to teaching adults to read, write and speak English in the South Bay, Los Angeles area. You’d commit to meeting weekly with your students online or in-person. We ask volunteers to make a 9-month commitment due to the time it takes to train and match tutors with students.
Visit our website to apply: http://www.Southbayliteracy.org
Tutor for Remove the Borders
Being a tutor for Remove the Borders is a great opportunity to gain volunteer hours while learning about how socioeconomic status and learning disabilities can hold students back. Dates on when you tutor will be worked out between you and the person you are tutoring. The minimum number of sessions (课时) you have to tutor is three.
Visit our website to apply: https://forms.gle/eJ2j8BAWAAeApEQq9
Teach online STEM classes
Across the country, millions of students lack the resources to learn about STEM and computer science. Our non-profit organization strives to provide this vital area of education to underprivileged students through engaging in online classes. As a volunteer teacher, you will earn service hours while developing critical communication, teaching, and leadership skills. These class sessions will run for eight weeks, and have a time commitment of three hours per week.
Visit our website to apply: https://www.roboticsforall.net/overview-of-positions.html
1. Who is Learn To Be intended for?| A．Disadvantaged K-12 students. | B．Students with learning disabilities. |
| C．Grown-ups interested in English. | D．Information technology majors. |
| A．Teach a kindergartener how to read online. | B．Tutor adults in English. |
| C．Tutor for Remove the Borders. | D．Teach online STEM classes. |
| A．Only online service is offered. |
| B．Volunteers will develop their leadership skills. |
| C．Volunteers will acquire service hours. |
| D．Anyone interested in the voluntary jobs needs to sign up online. |
5 . Taking a cruise on the Yangtze River is the best way to discover the charm of the central part of China and enjoy the natural scenery, culture and history, such as Three Gorges, White Emperor City, Fengdu Ghost City, etc. There are many luxury cruise ships sailing between Chongqi ng and Yichang.
Victoria Sabrina
The Victoria Sabrina cruise, with a total guest capacity of 572 people, departed Chongqing for the first voyage in May 2020. It is the largest luxury vessel from Victoria Cruises and the only American cruise on the Yangtze. There are four elevators and three restaurants on board. It adopts a series of advanced technologies and equipment to reach the comfortable service standard.
Century Glory
The 2019 newly built Century Glory can house up to 650 guests once and still arrange very good space for everyone. All the 180 staff on Century Glory will try their best to make you feel at home. It is the first ship on the Yangtze River to have new intelligent technology. A passenger, with just a smart phone, can learn all aspects of his or her trip, including cruise information and activity schedules.
Yangtze Gold 7
The elegant Yangtze Gold 7, which first sailed on March 3rd in 2013, was built to accommodate 446 travelers. All cabins (船舱) feature floor-to-ceiling glass windows for a private and convenient river sightseeing. There are even two swimming pools, which are hardly seen on other cruises. Most comfortable facilities are the same with common cruises, such as laundry, library, restaurants, fitness center and cinema.
Sanctuary Yangtze Explorer
Launched in 2008 and re-decorated in 2017, Sanctuary Yangtze Explorer is a 92 meter long river vessel, carrying no more than 130 passengers. The nice floor to-ceiling windows in every cabin enable you to enjoy the fabulous river view no matter which one you choose. The 121 crew members on board always provide the finest and the most personalized one on one service to ensure your satisfaction.
1. Which cruise has the shortest history?| A．Victoria Sabrina. | B．Century Glory. |
| C．Yangtze Gold 7. | D．Sanctuary Yangtze Explorer. |
| A．Every cabin has floor-to-ceiling windows. | B．People can go swimming for relaxation. |
| C．It is almost a hundred-meter-long cruise ship. | D．One-on-one service is provided on board. |
| A．The mobile phone is very useful on Yangtze Gold 7. |
| B．One can enjoy the view without going out on Century Glory. |
| C．Sanctuary Yangtze Explorer has the most expensive ticket. |
| D．Century Glory has a maximum passenger capacity. |
6 . USITCC Regional Competition
The Department of Information Technology and Cyber Security in the College of Business is proud to host the U. S. Information Technology Collegiate Conference (USITCC) Regional Competition on October 26-28. The event is open to students majoring in business or computer science.
USITCC is quickly becoming the nation’s top IT competition, networking and career-building event. In one single weekend, student attendees can prove their technology skills in a variety of IT competitions, meet with industry professionals and connect with IT employers providing internships (实习工作) and/or full-time positions.
Competitions & ScheduleDate | Time | Competitions |
Thursday, October 26 | 7-10 p.m. | Security |
7-10 p.m. | Systems Analysis and Design | |
Friday, October 27 | 8-1l a.m. | Application Development |
12-3 p.m. | Office Solutions | |
Saturday, October 28 | 4-7 p.m. | Database |
8-10 a.m. | Security Final Round |
Kentwood Hall, 701 E. St. Louis St., Springfield, MO 65806 is a historic six-story building. Kentwood offers private rooms, two-person rooms, super doubles, and three-person rooms.
Each room is carpeted and offers a bathroom and height-adjustable beds. All rooms have Wi-Fi and a mid-sized refrigerator. All rooms are smoke-free. Basic bedding will include sheets, a light blanket, and towels.
Entry FeeThe early bird rate is $35/person before September 30, and the price will increase to $45/person after that date.
1. What can student competitors expect from the competitions?| A．A job opportunity. | B．Changes of college major. |
| C．A large cash prize. | D．Instructions from professors. |
| A．Smoking areas. | B．Personalized bedding. |
| C．Internet access. | D．Plus-sized refrigerator. |
| A．To introduce a college. | B．To advertise a competition. |
| C．To recommend a hotel. | D．To promote cyber security. |
7 . Whether you want to start near or far, there are a lot of attractive holiday destinations. Here are four of them.
The Maldives
The resort (度假胜地) is a hit with families. Explore different islands, visit traditional fishing villages, and enjoy the natural beauty of each location. Kids can have great fun building sandcastles on beaches and exploring seashell treasures. There are also water sports for the whole family to take part in. After sunset, enjoy beach parties, live music, and cultural performances. What you can’t miss is eating at one of the world’s first underwater restaurants, watching sea animals swimming by.
Bali, Indonesia
Bali is a playground with natural beauty and cultural richness. For risky experiences, there are jungles and a volcano to hike. For a view of Bali against the sunrise, hike up Mount Batur. In Ubud, visit the sacred Monkey Forest. Then have a Balinese cultural experience, complete with puppet (木偶) making and traditional dancing. The Westin Family Kids Club offers fun activities such as face painting and kite making.
Penang, Malaysia
Thanks to its artsy scenery and greenery, its capital George Town was recognised as a UNESCO World Cultural Heritage Site in 2008. Take some family photos as you see many street arts. For a bit of schooling, check out the Made In Penang Interactive Museum which is home to murals (壁画) and displays for history enthusiasts. Kids can enjoy themselves in a kids club and a teddy bear-themed museum.
Istanbul, Türkiye
With a rich history and diverse culture, the city is a destination for all ages. For a unique learning experience, explore the Topkapi Palace. Then check out Miniatürk, a large park with replicas (复制品) of famous Turkish landmarks. The Istanbul Toy Museum arouses children’s imagination with its collection of toys. Keep your eyes open for the puppet shows too!
1. What can tourists do in the Maldives?| A．Hold free concerts at night. |
| B．Visit an underwater ocean park. |
| C．Have a special dining experience. |
| D．Visit a museum featuring traditional fishing villages. |
| A．The Maldives. | B．Bali, Indonesia. |
| C．Penang, Malaysia. | D．Istanbul, Türkiye. |
| A．They are all family-friendly. | B．They all have a long history. |
| C．They all provide museum tours. | D．They are all famous for natural scenery. |
8 . As you can imagine, there are many types of advertisements all of which run in different mediums, on different channels, and have different goals in mind for their business.
Direct Mail Advertising
Direct mail involves creating and distributing printed materials to a targeted mailing list. These materials can include post cards, brochures, and letters. This method first came about in 1835.
It’s still quite effective, even in the digital age. Not only do consumers enjoy receiving physical mail, but there’s also much less competition compared to the tons of email marketing ads that people receive each day.
Radio Advertising
United States radio stations launched their first commercial broadcasts in 1920. And while we might all drive around with our iPhones for music these days, don’t let that fool you.
Radio is still a workable marketing and advertising platform today for expanding the reach of sponsored(赞助) events and new products. In this ad method, the advertiser pays the radio station to play the ir ad during breaks between music or a radio show.
Social Media Advertising
Social media advertising is a form of internet advertising that combined with the introduction of social media in the 2000s. In this ad method, advertisers promote products, services, or content on social media platforms, such as Facebook and TikTok.
There are also many different ad forms to choose from when advertising on social media, such as image ads, video ads, sponsored posts, and more.
Mobile Advertising
Since the early 2000s, mobile advertising has been a popular method due to the widespread use of cell phones. It involves delivering promotional messages or advertisements through text messages, mobile apps, and mobile websites.
With this method, advertisers can maximize the use of data and create highly personalized ads based on location, behavior, and user interests.
1. What is the advantage of Direct Mail Advertising mentioned in the passage?| A．It reaches a large audience quickly. |
| B．It allows for interaction with consumers. |
| C．It is the most cost-effective advertising method. |
| D．It has less competition compared to email marketing. |
| A．Radio Advertising | B．Mobile Advertising |
| C．Direct Mail Advertising | D．Social Media Advertising |
| A．Mobile apps | B．Text messages |
| C．The maximum use of data | D．The widespread use of cell phones |
9 . Four Amusement Parks in Orlando
Universal’s Islands of Adventure
Opened in 1999, it is a unique amusement park with eight distinct themed islands for visitors to explore. There are countless rides, activities, and shows to be found throughout the islands. Costumed characters can often be found wandering through the park, making for some excellent photo opportunities.
Phone: 407-224-4233
Universal Studios Florida
If you’re a big movie fan, visiting it is a dream come true. The grounds are crowded with all sorts of exciting rides and attractions. Visitors will feel like they’ve been transported into their favorite fictional worlds. The park is also an operational movie andTV production facility, meaning that visitors might even have the chance to see a real film crew(工作人员) at work.
Phone: 407-363-8000
SeaWorld Orlando
With its many world-class aquariums(水族馆), it is one of the best places in the city to get up close and personal with the incredible marine(海生的) life that lives in the waters around Florida. Visitors will have the chance to see dolphins, sharks, turtles, and so on. It also offers roller coasters, rides for children, and valuable information about wildlife conservation.
Phone: 407-545-5550
Busch Gardens Tampa Bay
Sitting on a 335-acre property in Tampa, it offers thrilling amusement park rides, live entertainment for all ages, and has one of the largest zoos in the United States. More than12,000 different animals live in the park; many of these animals are native to Africa, and visitors can take exciting safari-style tours if they want to see the animals up close. Special events on how to protect wildlife are held throughout the year.
Phone: 813-884-4386
1. Which number should a film lover call?
| A．407-224-4233. | B．407-363-8000. |
| C．407-545-5550. | D．813-884-4386. |
| A．In SeaWorld Orlando. | B．In Universal Studios Florida. |
| C．In Busch Gardens Tampa Bay. | D．In Universal’s Islands of Adventure. |
| A．They are intended for child tourists. |
| B．They focus on sea animal attractions. |
| C．They are among the largest zoos in the US. |
| D．They provide information on wildlife protection. |
10 . Welcome to American United Travel Company. We’ll help you spend a perfect holiday. For over 6 years, we have been organizing value for money summer holidays, whether it’s a late holiday deal or your main summer holiday. Whether you’re looking for a romantic getaway, a luxury 5-star holiday, or you just want to relax and soak up the sun, we’ve got access to the very best flight and hotel deals throughout the world. We are proud to offer you various services unlike other tour companies where we offer one-stop shop for complete tourism.
Our Services Include
Tours. Meet & Assist Services. Airport Transfer. MICE (Meeting, Incentive, Conferences, Exhibitions) private Jets. Ground handling (24 hours) VIP services on arrival & departure. Adventure Tour.
Means of Transportation Reservations
We operate for all means of transportation available in the country, starting with buses for groups to car rental to individuals.
Guidance
We have the most qualified guides who speak French, English, German, Italian, and Spanish. We bank on their communication skills as well as their knowledge in various fields.
Fancy Dinners
We prepare outdoor dinners in particular places such as castles, beaches, old and traditional houses, etc. Usually, these dinners are arranged according to the clients’ choices.
Luggage Concierge
Don’t worry about luggage size and weight when travelling. Give your bags to Luggage Concierge in advance and they will be waiting for you at your destination when you arrive.
Call one of our experienced travel consultants on 18884700610 to secure one of these fantastic deals.
1. What is special about United Travel company?| A．It provides one-stop complete tourism. | B．It supplies the best flight and hotels. |
| C．It offers transfer service. | D．Its guides speak various languages. |
| A．Send it to your destination directly. | B．Carry it by yourself. |
| C．Keep it as light as possible. | D．Hand it to Luggage Concierge. |
| A．To diversify the economy. | B．To attract tourists. |
| C．To conserve the environment. | D．To entertain readers. |
