Answer Key
Unit 4 Bird Watching
Nature and the Environment
A. New Words
Unit 1 A Picnic by the River
1. boring 2. beautiful 3. area
4. park 5. feathers 6. tomorrow
A. New Words
1. litter 2. lunch 3. hungry
B. Understanding the Context
4. empty 5. throw 6. picnic
1. (d) 2. (a)
B. Understanding the Context
C. Focus on Details
1. (b) 2. (c)
1. area 2. tomorrow
3. boring 4. feathers
C. Focus on Details
1. picnic 2. hungry
D. True or False
3. empty 4. litter
1. T 2. T 3. F
4. F 5. T
D. Summary
1. (3) 2. (2) 3. (5)
4. (4) 5. (1)
Unit 5 Trees in the Forest
A. New Words
Unit 2 Let s Recycle!
1. forest 2. hundred 3. several
4. damage 5. visitor 6. fee
A. New Words
1. environment 2. extra 3. recycle
B. Understanding the Context
4. money 5. return 6. government
1. (b) 2. (c)
B. Understanding the Context
C. Focus on Details
1. (a) 2. (d)
1. forests 2. hundred
3. Several 4. Visitors
C. Focus on Details
1. recycle 2. money
D. Summary
3. government 4. environment
1. (2) 2. (3) 3. (1)
4. (5) 5. (4)
D. True or False
1. T 2. F 3. T
4. F 5. T
Science and Technology
Unit 3 Growing Roses
A. New Words
Unit 6 An Easy Way to Shop
1. bush 2. produce 3. recover
A. New Words
4. Fertilizer 5. liquid 6. problem
1. website 2. online 3. easy
4. button 5. item 6. choose
B. Understanding the Context
1. (d) 2. (c)
B. Understanding the Context
1. (c) 2. (a)
C. Focus on Details
1. problem 2. fertilizer
C. Focus on Details
3. liquid 4. recover
1. website 2. online
3. choose 4. item
D. Summary
1. (2) 2. (1) 3. (4)
4. (5) 5. (3)
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D. True or False D. Summary
1. F 2. F 3. T 1. (2) 2. (1) 3. (5)
4. F 5. F 4. (3) 5. (4)
Unit 7 Cell Phone Messages Unit 10 A New Camera
A. New Words A. New Words
1. receive 2. check 3. message 1. compact disc 2. camera 3. delete
4. cell phone 5. useful 6. middle 4. print 5. picture 6. digital
B. Understanding the Context B. Understanding the Context
1. (a) 2. (d) 1. (d) 2. (a)
C. Focus on Details C. Focus on Details
1. check 2. cell phone 1. digital 2. delete
3. receive 4. messages 3. print 4. compact disc
D. Summary D. True or False
1. (1) 2. (3) 3. (4) 1. F 2. T 3. F
4. (2) 5. (5) 4. T 5. F
Unit 8 Bubbles in Boiling Water
A. New Words
Art and Culture
1. gas 2. bubbles 3. drop
4. boil 5. disappear 6. escape
Unit 11 Gold
B. Understanding the Context
A. New Words
1. (a) 2. (b)
1. metal 2. gold 3. value
4. rare 5. beauty 6. jewelry
C. Focus on Details
1. boil 2. gas B. Understanding the Context
3. bubbles 4. drop
1. (c) 2. (b)
D. True or False
C. Focus on Details
1. T 2. F 3. F
1. jewelry 2. value
4. T 5. T
3. metal 4. beauty
D. Summary
Unit 9 The Blue Sky
1. (4) 2. (2) 3. (5)
4. (1) 5. (3)
A. New Words
1. science 2. reflect 3. understand
4. light 5. answer 6. absorb
Unit 12 The Summer Music Festival
B. Understanding the Context
A. New Words
1. (b) 2. (a)
1. Summer 2. music 3. festival
4. ticket 5. spend 6. overnight
C. Focus on Details
1. science 2. light B. Understanding the Context
3. reflect 4. understand
1. (d) 2. (c)
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C. Focus on Details C. Focus on Details
1. tickets 2. overnight 1. artist 2. change
3. festival 4. spend 3. daylight 4. garden
D. True or False D. Summary
1. T 2. T 3. T 1. (4) 2. (1) 3. (5)
4. F 5. F 4. (2) 5. (3)
Unit 13 The School Play
A. New Words
Leisure and Entertainment
1. yesterday 2. early 3. teacher
4. guess 5. first 6. play
Unit 16 A Haunted House
B. Understanding the Context
A. New Words
1. (d) 2. (b)
1. ghost 2. believe 3. joking
4. haunted 5. beach 6. furniture
C. Focus on Details
1. yesterday 2. teacher B. Understanding the Context
3. guess 4. early
1. (d) 2. (d)
D. Summary
C. Focus on Details
1. (3) 2. (4) 3. (5)
1. haunted 2. furniture
4. (2) 5. (1)
3. believe 4. joking
D. True or False
Unit 14 Ballet Class
1. F 2. T 3. T
4. T 5. F
A. New Words
1. dance 2. ballet 3. learn
4. street 5. practice 6. graceful
Unit 17 A Big Screen TV
B. Understanding the Context
A. New Words
1. (b) 2. (d)
1. screen 2. living room 3. afford
4. never 5. enjoy 6. quality
C. Focus on Details
1. ballet 2. dance B. Understanding the Context
3. street 4. graceful
1. (b) 2. (a)
D. True or False
C. Focus on Details
1. F 2. F 3. T
1. screen 2. quality
4. T 5. T
3. enjoy 4. afford
D. Summary
Unit 15 Monet s Garden
1. (1) 2. (5) 3. (2)
4. (4) 5. (3)
A. New Words
1. artist 2. shape 3. garden
4. change 5. group 6. daylight
B. Understanding the Context
1. (c) 2. (b)
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Unit 18 He s Famous!
School and Family
A. New Words
Unit 21 Where Is Your Homework?
1. sleepy 2. movie 3. handsome
4. famous 5. haircut 6. actor
A. New Words
1. homework 2. copy 3. essay
B. Understanding the Context
4. notebook 5. minutes 6. word
1. (d) 2. (c)
B. Understanding the Context
C. Focus on Details
1. (c) 2. (b)
1. movie 2. famous
3. sleepy 4. haircut
C. Focus on Details
1. homework 2. notebook
D. True or False
3. essay 4. minutes
1. T 2. T 3. F
4. T 5. F
D. Summary
1. (3) 2. (5) 3. (4)
4. (1) 5. (2)
Unit 19 A Housewarming Party
A. New Words
Unit 22 After School Activities
1. lovely 2. delicious 3. party
4. decorate 5. refreshments 6. shopping
A. New Words
1. busy 2. swimming 3. during
B. Understanding the Context
4. weekend 5. enough 6. team
1. (c) 2. (b)
B. Understanding the Context
C. Focus on Details
1. (a) 2. (a)
1. party 2. decorate
3. shopping 4. refreshments
C. Focus on Details
1. swimming 2. busy
D. Summary
3. during 4. enough
1. (3) 2. (5) 3. (4)
4. (1) 5. (2)
D. True or False
1. T 2. F 3. T
4. T 5. F
Unit 20 Making Music
A. New Words
Unit 23 Arts and Crafts Class
1. sound 2. piano 3. instrument
4. choir 5. write 6. listen
A. New Words
1. pretty 2. necklace 3. beads
B. Understanding the Context
4. transparent 5. earrings 6. plastic
1. (c) 2. (a)
B. Understanding the Context
C. Focus on Details
1. (b) 2. (c)
1. listen 2. music
3. instruments 4. piano
C. Focus on Details
1. pretty 2. beads
D. True or False
3. earrings 4. necklace
1. T 2. F 3. T
4. F 5. T
D. Summary
1. (3) 2. (2) 3. (1)
4. (5) 5. (4)
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D. True or False
Unit 24 Grandfather s Birthday
1. T 2. F 3. T
A. New Words 4. T 5. T
1. gift 2. birthday 3. dinner
4. family 5. forgot 6. score
Unit 27 My Future Job
B. Understanding the Context
A. New Words
1. (c) 2. (d)
1. mathematics 2. examination 3. subject
4. favorite 5. job 6. join
C. Focus on Details
1. score 2. dinner
B. Understanding the Context
3. birthday 4. family
1. (c) 2. (a)
D. True or False
C. Focus on Details
1. F 2. T 3. F
1. job 2. subject
4. F 5. T
3. favorite 4. mathematics
D. Summary
Unit 25 The Lesson
1. (1) 2. (4) 3. (5)
A. New Words 4. (3) 5. (2)
1. lesson 2. older 3. younger
4. together 5. easily 6. break
Unit 28 Shopping
B. Understanding the Context
A. New Words
1. (a) 2. (a)
1. sale 2. sunglasses 3. normal
4. everything 5. clothes 6. price
C. Focus on Details
1. lesson 2. break
B. Understanding the Context
3. older 4. together
1. (d) 2. (a)
D. Summary
C. Focus on Details
1. (3) 2. (1) 3. (4)
1. sale 2. price
4. (2) 5. (5)
3. clothes 4. sunglasses
D. True or False
1. T 2. F 3. T
4. T 5. F
People and Work
Unit 26 A Problem at the Office
Unit 29 A Part-time Job
A. New Words
A. New Words
1. accident 2. file 3. virus
1. Internet 2. list 3. newspaper
4. office 5. repair 6. careful
4. advertisement 5. interested 6. search
B. Understanding the Context
B. Understanding the Context
1. (a) 2. (b)
1. (c) 2. (d)
C. Focus on Details
C. Focus on Details
1. office 2. careful
1. newspaper 2. advertisements
3. accident 4. repair
3. search 4. Internet
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D. Summary C. Focus on Details
1. (3) 2. (1) 3. (4) 1. sport 2. racket
4. (2) 5. (5) 3. players 4. between
D. True or False
Unit 30 Teamwork
1. F 2. T 3. F
4. T 5. T
A. New Words
1. achieve 2. parents 3. chores
4. student 5. Teamwork 6. laundry
Unit 33 Summer Sports
B. Understanding the Context A. New Words
1. (b) 2. (b) 1. ceremony 2. tired 3. baseball
4. medal 5. women 6. silver
C. Focus on Details
B. Understanding the Context
1. achieve 2. teamwork
3. chores 4. laundry 1. (d) 2. (b)
D. True or False C. Focus on Details
1. F 2. T 3. T 1. tired 2. medal
4. F 5. F 3. ceremony 4. baseball
D. Summary
1. (2) 2. (1) 3. (3)
4. (5) 5. (4)
Sports and Health
Unit 34 Inline Skating
Unit 31 The Marathon
A. New Words
A. New Words
1. skate 2. muscles 3. sore
1. marathon 2. Fifty 3. difficult
4. kilometer 5. strong 6. scared
4. lucky 5. race 6. runners
B. Understanding the Context
B. Understanding the Context
1. (d) 2. (c)
1. (b) 2. (a)
C. Focus on Details
C. Focus on Details
1. muscles 2. kilometers
1. runner 2. lucky
3. strong 4. skate
3. race 4. marathon
D. True or False
D. Summary
1. T 2. T 3. F
1. (2) 2. (5) 3. (1)
4. F 5. T
4. (4) 5. (3)
Unit 35 The Olympics
Unit 32 Racquetball
A. New Words
A. New Words
1. champion 2. martial arts 3. country
1. Tennis 2. rules 3. racket
4. compete 5. winter 6. event
4. sport 5. player 6. between
B. Understanding the Context
B. Understanding the Context
1. (b) 2. (b)
1. (d) 2. (b)
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