题目

右图中A的位置用(2，3)来表示。 （1） 在方格纸上再画两个点：B(5，3)和C(2，6)．并且依次连接A、B、C三个点，使之成为一个三角形。 （2） 按边分，这是个三角形。 （3） 在方格纸中按2：1画出这个图形放大后的图形。 答案：【1】等腰直角 解：如图：American Watersports Tuesday--Saturday Located on the beach of the Sea Gardens Beach Resort, there are fun things to rent for the whole family. They offer rentals for kayaks, jetskis, and even parasails! Enjoy the water upclose or from a bird’s eye view! No matter what activity you’re enjoying, be sure to protect yourself and your family from the sun’s powerful rays and apply plenty of sun block!15th Street Boat CompanyMonday --Saturday15th Street Boat Company offers rental boats of all kinds. They’re sure to have what you are looking for, whether it’s a small boat for a quick and simple outing or an extravagent boat with comfortable seats with a stereo(立体声) and high tech navigation(导航). You can rent a boat for half a day, a couple days, or even weeks at a time. If you want it, they’ve got it. It’s fun for everyone! Coconut’s Watersports9 a.m.-5 p.m. Monday through Sunday Coconuts Water Sports is open 7 days a week for your convenience and offers tons of water fun for the whole family. Jet ski activities last 30 minutes or 1 hour and can make stops along the way. You must be at least 14 years of age to ride alone and can be as young as 3 to ride along with an adult. Everybody is required to wear a life jacket and a license is required to operate the jet ski. Bathing suits and shorts are recommended. Jet Ski Tours of MiamiThursday-Sunday 10 a.m.-7p.m.Jet Ski Tours of Miami includes onsite parking, indoor restrooms, lockers, and life jackets for participants. You may choose a one or two hour tour and each jet ski can hold up to 3 people. You must be at least 18 years old in order to ride. As long as you are accompanied by an adult, there is no age limitation for any passenger. There is a restaurant nearby to eat at. The tour visits 6 different islands and passes by Bayside and Hard Rock. You may even catch a glimpse of dolphins playing or a manatee resting in these fabulous Florida waters1.What activity is convenient for the visitors to have lunch?A.Jet Ski Tours of MiamiB.Coconut’s WatersportsC.15th Street Boat CompanyD.American Watersports2.To satisfy your son’s curiosity about marine animals, you ___________A.will rent a boat to ride with himB.prefer an extravagant (奢侈的) boat with comfortable seats with a stereoC.would like to prefer American Watersports to Florida watersD.can choose the tour to Bayside and Hard Rock3.If you like to sail a boat, you can________A.go to the Sea Gardens Beach ResortB.visit 15th Street Boat CompanyC.choose Jet Ski Tours of MiamiD.go to Coconut’s Watersports4.To ride alone in the jet ski activities, _____________A.you have to be at least 14 years oldB.you can choose to wear a life jacket or notC.you must be over18 years oldD.you have to be with parents