Unit 6-Reading Explorer 3 Foundation

challenge;Something that is difficult or requires effort. classmate - mate 伙伴; A student with whom you go to school. invitation - tion 行为、状态; An offer to come to a place or do something. member ;A person who belongs to a group or organization. news ; Information about recent events. presentation - tion 行为、状态 ;The act of showing or presenting something. save ; To keep or rescue from harm or danger. speech ; A talk or discourse given to an audience. along ; In a line or position beside or near something. difference - ence 状态、性质 ; The state or quality of being unlike or distinct. electrical - 与 “elect” 相关（选择、电）; Related to electricity or the flow of electric current. famous - ous 具有…… 性质的 ;Known about by many people. forest ; A large area covered with trees and other plants. leaf ; The flat part of a plant that grows from a stem. lock ; A device used for fastening or securing a door or container. within ; inside the limits or boundaries of something. lecture - lect 选择、收集 ;A formal talk given by a teacher or an expert. select - lect 选择 ;To choose or pick out from a group. recollect - lect 选择、收集,re 再次 ;To remember or recall something that has happened in the past. mention - ment 行为、结果 ;To talk about or refer to something briefly. information - form 形状、形式,in 进入,-ation 行为、状态; Knowledge or facts provided or received. communication - munic 交流, -ation 行为、状态 ;The act of sharing information or ideas with others.