题目

如图，一只甲虫在5×5的方格（每小格边长为1）上沿着网格线运动.它从A处出发去看望B、C、D处的其它甲虫，规定：向上向右走为正，向下向左走为负.如果从A到B记为：A→B（＋1，＋4），从B到A记为：B→A（－1，－4），其中第一个数表示左右方向，第二个数表示上下方向.1.（1）图中A→C（     ，     ），B→C（     ，     ）,C→      （＋1，     ）； 2.（2）若这只甲虫从A处去甲虫P处的行走路线依次为（＋2，＋2），（＋2，－1），（－2，Want to learn a foreign language well? Come to Teenagers Abroad! We invite you to join us on an amazing journey of language learning.Our CoursesRegardless of your choice of course, you’ll develop your language ability both quickly and effectively.Our Standard Course guarantees a significant increase in your confidence in a foreign language with focused teaching in all 4 skill areas—speaking, listening, reading and writing.Our Intensive Course builds on our Standard Course, with 10 additional lessons per week, guaranteeing the fastest possible language learning(see table below)Course TypeDaysNumber of lessonCourse TimetableStandard CourseMon——Fri.20 lessons9:00——12:30Intensive CourseMon——Fir.20 lessons9:00——12:3010 lessons13:00——14:30EvaluationStudents are placed into classes according to their currnt language skills. The majority of them take on online language test before starting their programme. However, if this is not available, students sit the exam on the first Monday of their course.Learning materials are provided to students throughout their course, and there will never be more than 15 participants in each class.Arrivals and TransferOur programme offers full package—students are taken good care of from the start through to the very end. They are collected from the airport upon arrival and brought to their accommodation in comfort. We require the student’s full details at least 4 weeks in advance.Meals/ Allergies(过敏)/ Special Dietary RequirementsStudents are provided with breakfast, dinner and either a cooked or packed lunch(which consists of a sandwich, a drink and a dessert). Snacks outside of mealtimes may be purchased by the student individually.We ask that you let us know of any allergies or dietary requirements as well as information about any medicines you take. Depending on the type of allergies and/or dietary requirements, an extra charge may be made for providing special food.1.How does Intensive Course differ from Standard Course?A. It is less effective.B. It focuses on speaking.C. It includes extra lessons.D. It gives you confidence.2.When can a student attend Standard Course?A. 13:00-14:30 Monday.B. 9:00-12:30 Tuesday.C. 13:00-14:30 Friday.D. 9:00-12:30 Saturday.3.Before starting their programme, students are expected to _______.A. take a language testB. have an online interviewC. prepare learning materialsD. report their language levels4.Which of the following may require an extra payment?A. Cooked dinner.B. Mealtime dessert.C. Packed lunch.D. Special diet.