UNIT 6 OUR FUTURE
The Future
Reading 1
COMPREHENSION page 137
1. T 2. T 3. T
THINK ABOUT IT page 137
1. Possible answers: cashiers, bank tellers, ticket agents
2. Answers will vary.
6.1 The Future with Will—Forms
EXERCISE 1 page 137
1. NS 2. T 3. T
EXERCISE 2 page 138
1. will be 2. will need 3. will find 4. will 5. mean
6. will 7. be 8. will affect 9. will be
EXERCISE 3 page 138
1. ’ll take 2. ’ll find 3. ’ll probably major 4. won’t make
5. Will there be 6. will be 7. ’ll show 8. will be 9. ’ll make
10. ’ll always remember
6.2 The Future with Will—Use
EXERCISE 4 page 139
Answers will vary. Possible answers:
1. I think technology will replace teachers./I don’t think technology will replace teachers.
2. I think there will always be a need for gardeners./I don’t think there will always be a need for gardeners.
3. I think workers will stay at the same job for a long time./I don’t think workers will stay at the same job for a long time.
4. I think we will always need the Post Office./I think we’ll always need the Post Office./I don’t think we will always need the Post Office./I don’t think we’ll always need the Post Office.
5. I think nurses’ salaries will increase a lot./I don’t think nurses’ salaries will increase a lot.
6. I think the U.S. will bring in doctors from other countries./I don’t think the U.S. will bring in doctors from other countries.
EXERCISE 5 page 139
Answers will vary. Possible answers:
1. I’ll show you the BLS website. You can find information there.
2. I’ll help you fill out an application for financial aid.
3. I’ll take you there./I’ll show you where it is.
4. I’ll write one for you. 5. I’ll explain it to you.
Reading 2
COMPREHENSION page 141
1. T 2. F 3. T
THINK ABOUT IT page 141
Answers will vary.
6.3 The Future with Be Going To—Forms
EXERCISE 6 page 142
1. F 2. NS 3. T
EXERCISE 7 page 142
1. ’s going to be 2. is it going to be 3. ’m not going to watch
4. ’m going to watch 5. aren’t you going to watch 6. are going to go
7. ’m going to watch 8. Are you going to be 9. is going to be
10. are you going to be 11. ’m going to write 12. is going to help
6.4 The Future with Be Going To—Use
EXERCISE 8 page 143
1. In the future, most cars are not going to need drivers./In the future, most cars aren’t going to need drivers.
2. In the future, airplanes are going to fly without pilots.
3. In the future, the work environment is not going to be the same./In the future, the work environment isn’t going to be the same./In the future, the work environment’s not going to be the same.
4. In the future, robots are going to do the jobs of people.
5. In the future, technology is going to create new jobs./In the future, technology’s going to create new jobs.
6. In the future, people are going to live forever.
7. In the future, students are going to learn everything on computers.
8. In the future, scientists are going to find a cure for most diseases.
ABOUT YOU page 143
Answers will vary.
EXERCISE 9 page 143
Answers to the questions will vary.
1. Will people travel to another planet?
2. Are people going to be happier in the future?
3. Will technology make our lives better?
4. Is technology going to make our lives worse?
5. Will computers be smarter than people?
6. Is Ray Kurzweil going to live forever?
6.5 Choosing Will or Be Going To
EXERCISE 10 page 144
1. are you going to major 2. am going to start/’m going to start
3. Is it always going to be/Will it always be
4. will become/is going to become 5. will let/’ll let
6. will enjoy/’ll enjoy 7. won’t have/will not have 8. will tell/’ll tell
9. will be/are going to be 10. will borrow/’ll borrow
11. will give/’ll give 12. are you going to major
13. am going to be/’m going to be 14. will be/’ll be
Reading 3
COMPREHENSION page 146
1. F 2. T 3. T
THINK ABOUT IT page 146
1. Possible answer: Because it’s a once-in-a-lifetime opportunity.
2. Answers will vary.
6.6 The Future with Time Clauses and If
Clauses
EXERCISE 11 page 146
Answers will vary.
ABOUT YOU page 147
Answers will vary.
ABOUT YOU page 147
Answers will vary.
REVIEW page 149
1. are you going to do/’re you going to do
2. ’m going to watch/am going to watch
3. finish 4. is going to talk/will talk
5. ’s going to be/is going to be/will be
6. is it going to start/’s it going to start/will it start
7. ’re going to have/are going to have/will have
8. are going to have/will have 9. are going to use/will use
10. will be/are going to be
11. won’t be/will not be/aren’t going to be/are not going to be
12. ’re are going to grow/are going to grow/will grow/’ll grow
13. won’t get/will not get/aren’t going to get/are not going to get/’re not going to get
14. are there going to be/will there be
15. ’m going to attend/am going to attend 16. ’ll send/will send
17. ’s not going to talk/is not going to talk/isn’t going to talk/won’t talk/will not talk
18. isn’t she going to discuss/won’t she discuss 19. ’ll come/will come
20. ’ll wait/will wait 21. ’ll call/will call 22. get
EDITING PRACTICE page 151
1. C 2. will be 3. C 4. will be 5. will be/is going to be/’s going to be
6. C 7. C 8. C 9. aren’t they going to do 10. C
11. are going to learn 12. are going to become 13. graduate
14. will have 15. C 16. C 17. still work 18. C
UNIT 7 IN FLIGHT
The Simple Past
Reading 1
COMPREHENSION page 155
1. F 2. F 3. T
THINK ABOUT IT page 155
Answers will vary. Possible answers:
1. Because humans flying seemed impossible at that time. Some people tried, but they all failed.
2. Because they prevent people from stealing or selling someone else’s idea.
7.1 The Simple Past—Forms
EXERCISE 1 page 155
1. rain, R 2. write, I 3. open, R 4. sell, I 5. start, R 6. happen, R
7. make, I 8. die, R 9. work, R 10. come, I 11. give, I 12. fly, I
13. be, B 14. need, R 15. be, B 16. live, R
7.2 The Simple Past—Uses
EXERCISE 2 page 156
1. T 2. NS 3. F
EXERCISE 3 pages 156
1. was 2. was 3. came 4. included 5. were 6. cost 7. hoped
8. was 9. rained 10. waited 11. failed 12. hit 13. stopped
14. repaired 15. waited 16. needed 17. were 18. flew 19. got
Reading 2
COMPREHENSION page 157
1. T 2. F 3. T
THINK ABOUT IT page 158
1. Possible answer: Maybe she crashed on a deserted island and no one knew where she was.
2. Answers will vary.
7.3 The Simple Past of Be—Forms
EXERCISE 4 page 159
1. Were 2. was 3. were 4. weren’t 5. were 6. were 7. Was
8. was 9. Was 10. wasn’t 11. was 12. was 13. was 14. was
15. were 16. wasn’t 17. wasn’t
7.4 The Simple Past of Be—Uses
EXERCISE 5 page 160
1. were 2. wasn’t 3. wasn’t 4. were 5. wasn’t 6. wasn’t 7. was
8. wasn’t 9. was 10. weren’t
EXERCISE 6 pages 160–161
1. Earhart and Lindbergh weren’t inventors./Earhart and Lindbergh were not inventors.
2. The airplane wasn’t a method of transportation in the early 1900s./The plane was not a method of transportation in the early 1900s.
3. Lindbergh wasn’t from Kansas./Lindbergh was not from Kansas.
4. Earhart wasn’t the first person to fly across the Atlantic Ocean alone./Earhart was not the first person to fly across the Atlantic Ocean alone.
5. There weren’t a lot of reporters at Kitty Hawk in 1903./ There were not a lot of reporters at Kitty Hawk in 1903.
6. The Wright brothers weren’t born in the 20th century./ The Wright brothers were not born in the 20th century.
EXERCISE 7 page 161
1. Was Lindbergh an inventor? No, he wasn’t.
2. Was the telephone an important invention? Yes, it was.
3. Were there airplanes 100 years ago? Yes, there were.
4. Were the Wright brothers adventurous? Yes, they were.
5. Was Lindbergh (an) American? Yes, he was.
6. Was travel by plane common 100 years ago? No, it wasn’t.
7. Were you interested in the story about aviators? Yes, I was./No, I wasn’t.
EXERCISE 8 page 162
1. A: Why was Charles Lindbergh famous?
B: Possible answer: He was one of the first aviators.
2. A: Why was Lindbergh a hero?
B: Possible answer: He was the first person to fly across the Atlantic Ocean alone.
3. A: What nationality was Earhart? B: She was (an) American.
4. A: How old was Lindbergh when he crossed the ocean?
B: He was 25 (years old).
5. A: Who were the Wright brothers?
B: Possible answer: They were the inventors of the airplane.
6. A: When was Earhart born? B: She was born in 1897.
7. A: Why wasn’t the flight at Kitty Hawk in 2003 successful?
B: Possible answer: The weather was bad that day.
Reading 3
COMPREHENSION page 164
1. T 2. F 3. T
THINK ABOUT IT page 164
1. Answers will vary.
2. Possible answer: They have passion, confidence, vision, and determination.
7.5 The Simple Past of Regular Verbs
EXERCISE 9 page 164
1. climbed 2. loved 3. visited 4. graduated 5. wanted
6. experimented 7. lasted 8. ignored 9. laughed 10. continued
11. died 12. regretted
7.6 The Simple Past of Regular Verbs—
Spelling
EXERCISE 10 page 165
1. played 2. worried 3. hoped 4. wanted 5. liked 6. rowed
7. looked 8. shopped 9. happened 10. married 11. employed
12. dragged 13. dropped 14. voted 15. followed 16. preferred
17. tied 18. mixed 19. admitted 20. propelled
7.7 The Simple Past of Regular Verbs— Pronunciation
EXERCISE 11 page 166
1. /d/ 2. /d/ 3. /t/ 4. /әd/ 5. /t/ 6. /d/ 7. /t/ 8. /t/
9. /d/ 10. /d/ 11. /d/ 12. /d/ 13. /t/ 14. /әd/ 15. /d/
16. /d/ 17. /d/ 18. /t/ 19. /әd/ 20. /d/
EXERCISE 12 page 166
1. received 2. played 3. lived 4. dreamed 5. studied 6. opened
7. liked 8. wanted 9. graduated 10. worked 11. believed 12. used
7.8 The Simple Past of Irregular Verbs
EXERCISE 13 page 168
1. gave 2. had 3. became 4. read 5. sold 6. built 7. flew
8. saw 9. made 10. sold 11. were 12. brought 13. went 14. hit
EXERCISE 14 page 168
1. became 2. was 3. thought 4. put, drove 5. flew, fell 6. saw
7. wrote 8. took
7.9 Negative Statements with the
Simple Past
EXERCISE 15 page 169
1. didn’t dream/did not dream 2. didn’t sell/did not sell
3. didn’t have/did not have 4. didn’t want/did not want
5. didn’t build/did not build 6. didn’t believe/did not believe
7. didn’t think/did not think 8. didn’t write/did not write
9. didn’t fly/did not fly 10. didn’t stay/did not stay
11. didn’t see/did not see 12. didn’t go/did not go
13. wasn’t/was not
Reading 4
COMPREHENSION page 171
1. F 2. T 3. T
THINK ABOUT IT page 171
1. Answers will vary.
2. Possible answers: Some professions that still have mostly men are sports and construction. Reasons may include tradition and physical requirements.
7.10 Questions with the Simple Past
EXERCISE 16 pages 172–173
1. Did she want, she didn’t 2. Did she work, she did
3. Did she direct, she didn’t 4. Did she take, she didn’t
5. Did she stay, she did 6. Did she teach, she didn’t
7. Did she receive, she didn’t
EXERCISE 17 pages 173–174
1. Did Goddard have a dream? Yes, he did.
2. Did Wilbur Wright/he die in an airplane crash? No, he didn’t.
3. Did Goddard build an airplane? No, he didn’t.
4. Did Lindbergh love to fly? Yes, he did.
5. Did Earhart cross the ocean? Yes, she did.
6. Did Earhart work for the U.S. Mail Service? No, she didn’t.
7. Was Earhart famous? Yes, she was.
8. Was Earhart born in the 20th century? No, she wasn’t.
9. Did people believe Goddard at first? No, they didn’t.
EXERCISE 18 page 174–175
1. was she born 2. did she work 3. did she fly/was 4. didn’t she take
5. Did other women serve/Were (there) other women 6. did she tell
7. did she teach 8. did she appear/was she 9. did it design
10. did she die
EXERCISE 19 page 176
1. did the first airplane have 2. did the Wright brothers build
3. didn’t newspapers report 4. wasn’t the U.S. government interested
5. did Lindbergh work 6. did Lindbergh cross/did he cross
7. did Lindbergh win/did he win 8. was Lindbergh/was he
9. was Earhart born
10. did Earhart’s plane disappear/did her plane disappear
11. happened 12. flew/was 13. did the first man walk
ABOUT YOU page 177
Answers to the questions will vary.
1. When did you fly in a plane for the first time? 2. Who was with you?
3. What was your first impression of flying?
4. What was your longest trip?
5. Did you like the articles about aviation in this unit?
6. Which article did you like the best?
7. Did you know about Robert Goddard before you read the story?
8. Did you know anything about Amelia Earhart before you
read the story?
9. Did you see the first moon landing?
REVIEW page 179
1. didn’t come 2. was 3. wasn’t 4. did you go 5. went
6. Did you go 7. didn’t 8. went 9. Did you drive 10. didn’t
11. flew 12. didn’t you drive 13. found 14. didn’t want 15. took
16. did you stay 17. stayed 18. did you do 19. visited 20. was
21. loved 22. saw 23. was 24. were
EDITING PRACTICE pages 180—181
1. had 2. C 3. did you write 4. wrote 5. C 6. C 7. wasn’t 8. C
9. did he go 10. Did he go 11. C 12. were 13. died 14. was he born
15. was born 16. was 17. C 18. see 19. was/happened 20. C
21. die 22. happened 23. was
UNIT 8 SHOPPING
Infinitives, Modals, Imperatives
Reading 1
COMPREHENSION page 184
1. F 2. T 3. T
THINK ABOUT IT page 185
1. Answers will vary.
2. No, because people still like to see and try products. And for some people, shopping is a social experience.
8.1 Infnitives—Overview
EXERCISE 1 page 185
1. T 2. F 3. NS
EXERCISE 2 page 185
1. to get 2. to try 3. to buy 4. to buy 5. to take 6. to tip 7. to use
8. to get 9. to shop
8.2 Verbs + Infnitives
EXERCISE 3 page 186
1. to buy 2. to spend 3. to compare 4. to get 5. to read 6. to be
7. to shop 8. to wait
ABOUT YOU page 186
1. Do you like to shop? Yes, I do./No, I don’t.
2. Do you try to compare prices? Yes, I do./No, I don’t.
3. Do you plan to buy something new soon? Yes, I do./No, I don’t.
4. Do you prefer to shop alone? Yes, I do./No, I don’t.
5. Do you like to shop online? Yes, I do./No, I don’t.
6. Do you know how to use shopping apps? Yes, I do./No, I don’t.
ABOUT YOU page 187
Answers will vary.
8.3 Be + Adjective + Infnitive
EXERCISE 4 pages 187–188
1. to buy 2. to make 3. to do 4. to spend 5. to bother 6. to help
7. to go 8. to use 9. to have
8.4 It + Be + Adjective + (Noun +) Infnitive
ABOUT YOU page 188
Answers will vary.
8.5 Verb + Object + Infnitive
EXERCISE 5 page 189
Conversation 1
1. me 2. to help 3. us to buy 4. her to use 5. you to consider 6. her
Conversation 2
1. you to 2. me to
Conversation 3
1. me to get 2. us
Conversation 4
1. me 2. to help 3. to pay 4. to help
EXERCISE 6 page 190
1. expect me to save 2. want them to leave 3. wanted them to buy
4. want you to talk 5. encourage you to be 6. expected them to buy
7. wanted him to buy 8. expect you to graduate
8.6 Infnitives to Show Purpose
EXERCISE 7 page 191
1. to take 2. to compare 3. to look for 4. to print 5. to learn
6. to change 7. to give
EXERCISE 8 page 191
Answers will vary.
Reading 2
COMPREHENSION page 193
1. T 2. T 3. T
THINK ABOUT IT page 193
1. Answers will vary.
2. Possible answer: Yes, because companies make money when people forget to cancel after the trial period is over.
8.7 Modals and Phrasal Modals—Overview
EXERCISE 9 page 193
1. NS 2. T 3. F
EXERCISE 10 page 194
1. might 2. should 3. can’t 4. can’t 5. don’t have to 6. can
7. should 8. can’t 9. can 10. must 11. can 12. have to
13. have to 14. may 15. should
8.8 Can, Be Able To, Be Allowed To
ABOUT YOU page 195
Answers will vary.
EXERCISE 11 page 196
1. can help 2. ’m not able to finish 3. can give 4. can’t wait
5. ’re not allowed to apply 6. can say
8.9 Should
ABOUT YOU page 196
Answers will vary.
EXERCISE 12 page 197
1. Should we buy 2. shouldn’t buy 3. shouldn’t eat 4. should use
5. should be 6. should look at 7. should take 8. should come
9. should bring 10. Should we pay
8.10 Must and Have To
EXERCISE 13 page 198
1. have to return 2. have to use 3. have to buy 4. must send
5. must show 6. has to go
8.11 Not Have To and Must Not
EXERCISE 14 page 199
1. buy 2. take 3. bring/carry/take 4. go 5. bring/carry/take
6. pay 7. go
8.12 May, Might, and Will
EXERCISE 15 page 200
1. might want 2. may be 3. will get/will receive 4. might not be
5. may try/might want 6. will receive/will get
EXERCISE 16 page 200
Answers will vary.
Reading 3
COMPREHENSION page 201
1. T 2. T 3. F
THINK ABOUT IT page 201
1. Answers will vary.
2. Possible answer: Shop for clothes at the end of a season when they will be on sale.
8.13 Imperatives
EXERCISE 17 page 202
1. compare 2. find 3. Ask 4. Don’t buy 5. Don’t lose 6. take
7. don’t forget 8. train
Reading 4
COMPREHENSION page 203
1. T 2. F 3. F
THINK ABOUT IT page 204
1. Answers will vary.
2. Possible answers: If an item was clearly used or in poor condition; if the customer bought the item a long time ago.
8.14 Modals and Other Expressions for
Politeness
EXERCISE 18 pages 204–205
1. May I 2. I’d like 3. Could you 4. Would you like
5. Can you/Would you 6. Let’s 7. Could you 8. Can I
9. Do you want/Would you like 10. Why don’t you think about it?
REVIEW page 207
1. to get 2. would/’d 3. to follow 4. it’s 5. to compare 6. get
7. it’s 8. to take 9. to have 10. don’t have to 11. go 12. may/might
13. him to match 14. should 15. might 16. to call 17. to 18. it’s
19. to get 20. have to wait 21. to wait 22. should 23. can you
24. wants us to 25. might not 26. would 27. to learn
EDITING PRACTICE page 208
1. C 2. get 3. want me to help 4. you to be 5. It’s/It is 6. C
7. to look 8. can look 9. C 10. try to use 11. C 12. C
13. easy to make 14. C 15. happy to help 16. can you
17. want you to help
