Exercise C - DynEd

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Answer Key

EFS Unit 12 Exercise A

Part 1

1. built

2. were

3. was

4. begun

5. brought

Part 2

1. was built

2. was begun

3. completed

4. later

5. In

6. used

7. hold

8. held

9. until

10. was begun

Exercise B

Part 1

1. (a) can’t play

(b) making me

(c) have to

(d) do you have to

(e) going to

2. (a) did you do

(b) a lot of

(c) to put my name

(d) Why don’t you

(e) I’d better

Part 2

1. (a) Can I

(b) I’m doing a

(c) you’re eating

(d) are you having

(e) also having

2. (a) Do you usually

(b) have breakfast

(c) Both of my

(d) you get enough

(e) sometimes

Exercise C

Part 1

1. can’t, has to

2. doesn’t, is going to

3. takes, he’d better

4. is doing, eating

5. is having

6. eats

Part 2

1. Why did Nick do so badly on the test?

2. What did Nick forget to do?

3. What grade did Nick get on the test?

4. What does Jane want to talk to Tina about?

5. What is Tina having for lunch today?

Exercise D

Part 1

1. revolve, Sun

2. takes, year, revolution

3. tilts, travels, causes

4. hemisphere, tilted

Part 2

1. are caused, Earth’s

2. changes, climate

3. causes, major

4. reflect. Sun’s

5. too, will not

Part 3

1. construction

2. protection

3. execution

4. revolution

5. rotation

6. movement

7. pollution

8. reflection



Exercise E

Part 1

1. liquid, water, evaporating, turns

2. cools, occurs, clouds, condensed, causing, include

Part 2

1. What kind of objects revolve around planets?

2. How many stars are in our galaxy?

3. When was our planet formed?

4. What is a major cause of air pollution?

5. What happens when warm air rises?

Exercise F

Part 1

1. complex, nerve

2. related, through

3. carries, from

4. when, cause

5. primary, related

Part 2

1. either side

2. in addition, your balance

3. are located, below

4. themselves

5. used for, smell

6. eat, food



RFS Unit 12

Getting Started

Comprehension Check 1

Vocabulary Practice 1

1. volume

2. flow

3. crust

4. layer

5. material

6. vary

Language Focus 1

2. (d) is called the crust.

3. (j) the Earth’s crust is very thin.

4. (h) less than 1% of the Earth’s volume.

5. (f) is the mantle.

6. (g) it flows like a slow-moving liquid.

7. (i) of the Earth's volume.

8. (a) are the outer core and inner core.

9. (c) heavy metals.

10. (e) is even hotter than the mantle.


(Answers will vary)

1. Igneous rocks come from magma, the hot material that lies below the surface of the Earth’s crust.

2. Granite forms when magna becomes

surrounded by cooler rock and slowly cools and

hardens.

3. The magna that rises to the Earth’s surface

hardens to become rock.

4. Sedimentary rocks are formed when layers of dead plants, animals, and rock are pressed together and harden.

5. The layers of sedimentary are often different in color and come from different materials.

6. Pressure or heat causes rocks to change form and to become metamorphic rocks.


Type of Rock

Where it comes from

How it forms

Example

igneous magma magma

cools and

hardens

granite

sedimentary broken

rocks,

remains of

plants and

animals

materials

are

pressed

together

and

harden

limestone

metamorphic sedimentary

or igneous

rocks

changed

by heat

or

pressure

marble

Language Focus 2

1. (c) press down

2. (i) harden

3. (a) is formed

4. (h) appear

5. (f) begin as

6. (d) are changed into

7. (j) is composed of

8. (b) lies below

9. (e) becomes surrounded by



EFS Unit 13

Exercise A

Part 1

1. needs

2. need

3. other

4. sleep

5. important

Part 2

1. asking,

2. how much,

3. needs

4. about,

5. for,

6. to,

7. have to,

8. every,

9. forgets,

10. very

Exercise B

Part 1

(a) You’re

(b) better at

(c) than

(d) can make

(e) do

(f) What about

(g) going to do?

(h) looking for

(i) She’ll

(j) both

Part 2

(a) going to

(b) take turns

(c) good posters

(d) easier

(e) this weekend?

(f) work on it

(g) can work

(h) Can you

(i) See you

Exercise C

Part 1

1. need to,

2. for,

3. next week,

4. hasn’t,

5. meet,

6. after,

7. will do

8. make,

9. look for,

10. this

Part 2

1. What kind of project are they working on?

2. Who will do the writing?

3. What is Sue going to do?

4. Who is going to give the presentation in class?

5. What are their plans for the weekend?

Exercise D

Part 1

1. most people, probably

2. the animals

3. warmed, discovered

4. could stay, longer time

5. always, more time

6. created

Part 2

1. more, led

2. increase, resulted from

3. larger, more people

4. work force, more complex

5. grew,began



Exercise E

Part 1

1. to determine,

2. were not,

3. cared for,

4. allowed to,

5. were sent,

6. given,

7. steal,

8. to survive,

9. caught,

10. were punished

Part 2

domesticated animals,

early civilizations

eroded soil,

food supply

irrigation canals,

land bridges

river valleys,

stone age

Exercise F

Part 1

1. in which, score points

2. who, is called

3. individual, a player

4. involve, area

5. consist, players

Part 2

1. most

2. is 3. football

4. is called

5. played

6. ball

7. player

8. is

9. use

10. feet



RFS Unit 13

Getting Started


1. Western methods of government, education, and the arts were all influenced by ancient Greece.

2. When a teacher uses the Socratic method,

the teacher uses questions to help people

gain knowledge.

3. All men over 20 years old were citizens. Males 20 and under, women, slaves, and foreigners could not become citizens.

4. All citizens had the right to speak in the Assembly and to vote.

5. Government workers received salaries, so even poor people could afford to work for the government.

6. Government jobs were assigned randomly, so each citizen had a chance to do different jobs.


2. (b) 3. (a)

4. (b)

5. (a)

6. (c)

Language Focus 1

1. (f) society

2. (c) built

3. (h) sculptors

4. (a) flourished

5. (k) including

6. (b) important

7. (l) method

8. (i) Socratic


1. (a) 4. (a)

2. (c) 5. (b)

3. (b) 6. (a)


2. (d) marble statues 3. (f) to recite poetry

4. (j) to attend school

5. (c) to practice gymnastics

6. (i) the golden age

7. (a) to stay at home

8. (b) works of art

9. (e) athletic games

10. (g) formal education

Language Focus 2

1. to do

2. wrestling

3. running

4. fighting

5. Training

6. to compete



EFS Unit 14

Exercise A

Part 1

1. is trying

2. to keep

3. because

4. figure out

5. decisions

Part 2

1. to find

2. are trying

3. between

4. has found

5. away

6. nearby

7. isn’t

8. though

9. decide

10. having

Exercise B

Part 1

1. (a) to run

(b) thinking

(c) you should

(d) do you think

(e) running

(f) lots of

(g) good

(h) already

(i) haven’t you

(j) didn’t

Part 2

(a) anyone

(b) don’t

(c) got to

(d) you’d be

(e) you should

(f) will you

(g) what I

(h) Can you

(i) a lot to do

(j) don’t have

Exercise C

Part 1

1. is trying,

2. to decide,

3. for,

4. recommends,

5. to,

6. has,

7. if,

8. to do,

9. much,

10. in

Part 2

1. Has Michael decided to run for class president?

2. What does Tina think Michael should do?

3. Who else is running for class president?

4. Who will run if Michael decides not to run?

5. Who does Tina think should run for class

president?

Exercise D

Part 1

1. lengths

2. shows, more

3. age, except for

4. are, than, range

5. graph, axis

Part 2

1. shows, sound, varies

2. speed, depends

3. temperature, increases

4. higher, faster, more



Exercise E

Part 1

1. draw, point

2. line, to

3. value, axis

4. distance, from

5. coordinate, process

Part 2

1. type, relationship

2. linear, straight

3. equation

4. drop, gives, object

5. speed, linearly

Exercise F

1. organ, the body

2. primary, food

3. function, oxygen, blood

4. divided, sections

5. system



RFS Unit 14

Getting Started


1. They are convenient because they can be carried everywhere, and they have many useful features.

2. They can use a basic mobile phone to make calls

and to send text messages.

3. Smartphone features include the ability to send

email, access the Internet, and listen to music.

4. In 2011, 30% of the mobile phones sold were smartphones.

5. Sales increased everywhere. The area with the greatest increase was the Asia-Pacific region.


1. convenient

2. Internet

3. applications

4. digital

5. percentage

6. quarter

Language Focus 1

1. (e) can carry them

2. (i) send text messages

3. (b) more and more people

4. (f) not only for phone calls

5. (j) more expensive

6. (d) small keyboards

7. (g) such as games

8. (a) taking pictures

9. (h) being introduced

10. (c) understand your voice


1. (b)

2. (b)

3. (a)

4. (c)

5. (b)

6. (c)


Across 1. manufacture

4. app

7. touchscreen

8. period

9. quarter

10. pie chart

Down

1. market share

2. mobile

3. smartphone

5. increase

6. consider

Language Focus 2

1. to consider

2. makes

3. uses

4. were

5. represented

6. sold

7. see

8. was

9. mean

10. used



Unit 1: Numbers, Fractions and Decimals

1. eight hundred eighty-four thousand eight hundred (and) fifty

2. one-fifth

3. point zero zero eight or eight one-thousandths

4. six hundred ninety-five

5. three and fivesixteenths

6. twelve point zero six

7. point five percent

8. seven-eighths

9. one million, five hundred thousand

10. a hundred and fifty eight thousand, seven hundred (and) eighty

Unit 2: Numerical Relations & Operations

1. 98

2. 9

3. 10(a-b)

4. 10

5. 25

6. (a+b)/2

7. 20

8. 10 & 12

9. 10

10. 4a + 3b

EBTN

Unit 3: Related Changes



NDE Module 4

UNIT 1

Planning Ahead: Practice Exercise A

1. yesterday

2. last week

3. last week

4. tomorrow

5. on Saturday afternoon

6. on Sunday morning

7. ten hours

Planning Ahead: Practice Exercise B

1. It takes thirty minutes to get to the hotel on

the subway/by subway.

2. It takes thirty-five minutes to get to the hotel

on the bus/by bus.

3. If he goes by subway, he’ll arrive (at the hotel)

at 10:35 a.m. OR He’ll arrive at the hotel

at 10:35 if he goes by subway.

Planning Ahead: Practice Exercise C

1. How long does it take to fly from San Francisco

to London?

2. How long does it take to get to Brighton from

London (by train)?

Planning Ahead: Practice Exercise D

1. d

2. a

3. e

4. b

5. c

Planning Ahead: Practice Exercise E

1. If he takes the underground/the subway, he

won’t be able to see the countryside.

2. It will be expensive if he takes/decides to take

a taxi. OR if he goes by taxi.

3. If he takes a bus, it will take a long time to get

to his hotel.

4. If he goes by taxi or bus, he can see the

countryside.

5. It’ll be less expensive if he goes by bus or

subway/underground.

6. Sometimes it’s possible to get a cheaper rate

at a hotel if you stay for several days.

7. If he leaves (San Francisco) on Saturday

afternoon, he’ll arrive in London on Sunday

morning.

Planning Ahead: Practice Exercise F

am going to arrive;

get;

am going to check-in;

am going to telephone ;

lives;

get together;

talk

Planning Ahead: Practice Exercise G

interesting man;

interesting story;

interested in music;

interesting to talk;

interested in many of the same things;

interested in



Planning Ahead: Practice Exercise H

1. b

2. b

3. c

4. b

5. a

6. a

7. a

8. c

Planning Ahead: Practice Exercise I

trip;

a non-stop flight;

ticket;

round-trip;

Planning Ahead: Practice Exercise J

1. C

2. D

3. B

4. C

Planning Ahead: Practice Exercise K

book a ticket;

destination;

…;

flights, flying;

flight;

How much does it cost?/ What’s the price?/What is the fare?;

…;

does it cost;

I’ll get that one;

I’ll help you book that one.

…,…,…;

Will you go ahead and book that one for me please?

Planning Ahead: Practice Exercise L

speaking;

bound;

altitude;

local;

arriving;

gate;

connecting;

approach;

stay;

destination



UNIT 2

Matrix Vocabulary: Practice Exercise A

1. i

2. e

3. f

4. a

5. g

6. j

7. b

8. h

9. c

10. d

Matrix Vocabulary: Practice Exercise B

1. g

2. j

3. f

4. b

5. i

6. a

7. c

8. h

9. d

10. e

Matrix Vocabulary: Practice Exercise C

1. f

2. c

3. a

4. i

5. d

6. g

7. e

8. j

9. b

10. h

Matrix Vocabulary: Practice Exercise D

1. f

2. c

3. h

4. a

5. i

6. j

7. d

8. b

9. g

10. e

Matrix Vocabulary: Practice Exercise E

1. b, h

2. f

3. l

4. c

5. e

6. d

7. k

8. j

9. a

10. g

Matrix Vocabulary: Practice Exercise F

1. C

2. B

3. C

Matrix Vocabulary: Practice Exercise H

fats, oils, and sweets;

milk, yogurt, and cheese; meat, poultry, and fish;

vegetables; fruit;

bread, cereal, rice, and pasta



Matrix Vocabulary Crossword

t a w

w

r a n g e

r o n g

u

l

b

a m s l l

l

o

a

b

l

e k a c

p s w e n e p r

a

e

r

e

s

t

p e e c h

b

i

r

d

g

g

s

e r

p s t c a d ro

b

o

k

m

g

a

z

i

n

e

p p l

z a j

f s h

a

k

s

d

i

w c

o

r

n

a p s g h e t t i

m

l

k

g

e e f f o c

y

o

v

e

l

t s

o

v

t

a



UNIT 3

Biography: Practice Exercise A

1. in

2. in/ at, in

3. to, at

4. to

5. in

Biography: Practice Exercise B

was born;

was;

showed;

was;

became;

didn’t like;

preferred;

graduated;

got a job;

got married;

worked;

made

Biography: Practice Exercise C

1. b

2. d

3. a

4. f

5. e

6. c

Biography: Practice Exercise D

1. From

2. During

3. for

4. until

5. until

6. During

7. By

8. for

Biography: Practice Exercise E

how;

why;

that;

when;

that;

that;

who

Biography: Practice Exercise F

1. When did you start working there?

2. How long did you work there?

3. How old were you when you graduated?

4. How old were you when you moved to Brazil.

5. Where were you born?

6. What did your father do? OR What was your

father’s occupation/job?

Biography: Practice Exercise G

was born;

represented;

was elected;

was;

was born;

fought;

was;

became;

was killed

Biography: Practice Exercise H

1. He was born in Tegucigalpa, Honduras.

2. He represented Honduras.

3. José de San Martín fought for the southern

nations of South America.

4. He died on February 20th, 1524.



Biography: Practice Exercise I

He was born in Ajaccio, Corsica on 15th of August,

1769. On March 9th 1796 he married Josephine in

Paris, France. Then he became First Consul of

France and served from 1799 to 1804. From 1804

to 1814 and 1815, he was Emperor of the French.

He married again on April 2nd 1810 to Marie-Louise.

On May 5th 1821 he died in St. Helena.



NDE Module 5

UNIT 1

On a Trip: Practice Exercise A

1. had

2. arrived

3. been

4. come

5. came

6. been

7. met

8. gotten/got married

9. arrived

10. had

On a Trip: Practice Exercise B

1. Yes, she did.

2. Yes, she has.

3. Yes, it has.

4. No, it didn’t.

5. Yes, it was.

On a Trip: Practice Exercise C

1. came; came

2. interviewed; have kept in touch; have written

3. got; has been; has visited; visited; came

On a Trip: Practice Exercise D

1. until

2. since

3. for

4. ago

5. until

6. in

7. for

8. since

9. for/in

10. for

On a Trip: Practice Exercise E

1. i

2. l

3. g

4. a

5. j

6. e.

7. h

8. b

9. f

10. c

On a Trip: Practice Exercise F

1. already

2. already

3. yet

4. ever

5. still

6. yet, still

7. ago.

8. never

9. ago

10. still, yet

11. ever

12. yet, already

Present Perfect: Exercise G

1. have not got

2. Have, been

3. has not seen

4. has, called

5. have not gone

6. Have, arrived

7. Has, found

8. have, dropped



Present Perfect: Exercise H

1. I have seen a plane.

2. She has traveled on a ship.

3. They have drunk all the juice.

4. You have eaten my sandwich!

5. They have asked for some salad.

6. She has borrowed my pencil case.

Present Perfect: Exercise I

1. Have you studied English at school?

2. Have you missed the last bus?

3. Have you seen a good film?

4. Have you had a best friend?

5. Have you fallen into the sea?

Present Perfect: Exercise J

1 h

2 c 3 b r o u g h 4 t

h e

r a

o e 5 s t 6 u c k

7 s 8 s a n 9 g n e

10 a t e o d n

t n 11 f e d

12 s 13 h a k e n r

14 s 15 w e 16 s o l d

w 17 r e a d 18 l e f t

u i r 19 w o

20 m e t 21 d r e w o 22 p

t n 23 w 24 d r a n k

25 f l e w 26 s t o o d i

n n 27 m a d e



UNIT 2

Directions: Practice Exercise A

1. go west; to the intersection; of the intersection

2. go past; on your left

3. go to; half a block; on your right

4. at the corner; of the block

5. in the middle; across the street

Directions: Practice Exercise B

See the Key Sentences

Directions: Practice Exercise C

1. second; middle

2. middle/center; center

3. right

4. right; bottom

5. lower

6. third; top

Directions: Practice Exercise D

1. out

2. of

3. At

4. straight

5. on

6. past

7. across

8. along

9. through

10. in



UNIT 3

Energy Sources: Practice Exercise A

1. We use electricity to light our homes.

2. We need energy for light.

3. When it’s cold we need energy for heat.

4. When we want to travel we need energy for transportation.

5. Fossil fuels are an important source of energy.

6. We burn fossil fuels such as coal to generate electricity.

7. The sun is another source of energy.

8. Solar cells can convert sunlight directly into electricity.

9. Solar energy is still expensive and underdeveloped.

10. Wind power is also a safe source of energy.

Energy Sources: Practice Exercise B

Fossil Fuels: oil; tanker; natural gas; gasoline; coal; cars; air pollution

Hydroelectric Power: dams; rivers; falling water

Nuclear Power: reactor; radiation

Energy Sources: Practice Exercise C

1. c

2. d

3. j

4. e

5. a

6. f

7. g

8. h

9. i

10. b

Energy Sources: Practice Exercise D

1. cause

2. result

3. cause

4. cause

5. result

6. cause

7. cause

8. cause

9. result

10. cause

Energy Sources: Practice Exercise E

1. are burned

2. are used

3. are killed/are being killed

4. is caused

5. is converted

Energy Sources: Practice Exercise F

1. The energy of falling water is converted into electricity.

2. Waste gases are produced by the burning of fossil fuels.

3. Air pollution is caused by the burning of fossil fuels.

4. Sunlight is converted into electricity by solar cells.

5. Fossil fuels are burned to generate electricity.

6. Many of our forests are being cut down or burned.

7. The number of dams must be limited.

8. Carbon dioxide is converted into oxygen by plants.

9. The rate of global warming will be reduced by protecting our forests.

10. Large oil tankers are used to transport oil across the oceans.

Energy Sources: Practice Exercise G

The door is opened.

The books are bought.

The car is washed.

The book is not read.

The food is not eaten.

Energy Sources: Practice Exercise H

1. The table is set by us.

2. A lot of money is earned by her.

3. The story is written by me.

4. The red skirts are worn by them.

5. Their teacher is not helped by them.

6. The door is not opened by her.

7. The letter is not written by you.

8. Are taught this lesson by your teacher? / Is

this lesson taught to you by our teacher?

9. Is this food eaten by them?



Energy Sources: Practice Exercise I

1. A

2. P

3. P

4. A

5. A

6. P

7. A

8. P

Energy Sources: Practice Exercise J

1. Burning fossil produces carbon dioxide.

2. Many people does running for exercise.

3. The teenagers gave a standing ovation to the rock singer.

4. The professor handed out the syllabus.

Energy Sources: Practice Exercise K

Freeze water – It freezes; it forms ice;

Oil supply decreases– Oil prices increase;

Global temperatures rise – Ocean levels rise;

Temperature increases – Pressure increases;

Forests are cut down – Erosion increases;

Gas pressure is increased – Its temperature increases

Oil prices rise – World economic growth stagnates

/slows/decreases

Nuclear waste leaks into the environment –

Contamination increases/gets worse

Energy Sources: Practice Exercise L

1. The burning of fossil fuels (the driving of cars, the farming of cattle, etc.) can cause global warming.

2. If water is heated, then it boils and then turns

to steam.

3. Global warming/increased temperature would cause the polar ice caps to melt.

Energy Sources: Practice Exercise N

1 p r i c e

r 2 h

3 w 4a t e r y

c s 5 f d

i s 6 e o r

d u n s 7 f o r e s t

8 c r i m e s e

e r i l

9 g a 10s o l i n e

y u c 11p

n t l

12n r a

13p o l l u t i o n

c c t

14o i l s p i l l s l s

e

15r a d i a t i o n

r



REVIEW EXERCISES

E1 1. Cathy arrived in Paris the day before yesterday. 2. Her plane landed at 3 o’clock. 3. It was supposed to arrive at 1:00. 4. She visited her best friend and the fiancée.

E2 1. No. It isn’t. It is the third time she has been in

Paris. 2. It was ten years ago. 3. It was two years ago. 4. She was so busy that she didn’t have time to

see any of the sights.

E3 1. She is going to meet with a date to have

dinner. 2. She is going to have dinner with Pierre, the

famous photographer. 3. She interviewed him two years ago. 4. They have written to each other several times.

E4 1. No, she has never been to Salzburg. 2. It has an interesting history. 3. She wants to visit the place where Mozart was

born. 4. two hundred years

E5 1. has 2. come 3. came 4. was 5. since 6. never 7. won’t 8. such as 9. converted 10. safe 11. why 12. being 13. would 14. used

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Exercise C - DynEd