♠특징
Unit 4
1. Phonics : oi/oy, ur/ir/er, or/ore/oor/our, 모음 연자, air/are

2. Vocabulary
①desert, javelina, cactus, adobe, coyote, tumbleweeds
②hitched, ford, canvas, splash, lurched, running gear
③habitat, field trip, landscape, stalking, praying mantis
④officer, mystery, solve, emergency, detective, case
⑤project, table, complicated, exhibits, demonstrate, participants

3. Grammar
①소유격 대명사
②한 개 이상의 말로 구성된 주어와 술어
③단축어
④대화문의 구두점
⑤불규칙 동사

Unit 5
1. Phonics : l-blends, 묵음 e, s-blends, 연자 th, 다음절어

2. Vocabulary
①chimney, foundation, horseshoe, china, mansion
②preserved, prehistoric, extinct, artifacts, archaeologists, ruins
③tornado, twister, ditch, hail, damage, gust
④pueblo, ancestor, legend, tribe, storyteller, ancient, remember
⑤computer, electronic, solar, reprogrammed, machines, robots

3. Grammar
①주어와 동사의 일치
②한 개 이상의 단어로 된 주어와 술어
③복문
④양태 부사
⑤때와 장소의 부사

Unit 6
1. Phonics : 복합어, 축어, 소유격, -ed, -ing, 자음+le, 3-letter blends

2. Vocabulary
①catalogues, lot, orchards, scarecrows, bouquets, plots
②llamas, terraces, alpaca, harvest, burlap
③fierce, warriors, conquer, respect, procession, prospered
④newcomers, inspectors, migrate, foreign, advertisements
⑤teachers, elementary, programs, recited, audiences, campus

3. Grammar
①I, me
②대명사 주어와 동사의 일치
③형용사 비교급
④불규칙 동사
⑤문장 확대