Macmillan English Grammar

Unit 35

Unit 43

aC bA cD dC eD fC gA hB iC jD

ftoo

gC h UC

oUC

fC

nUC

d very e enough

ivery jton

b too c too

h enough

c UC d UC e C

kC IUC mUC

a beautiful smalI white b large round medieval

c interesting new German d famous French

renaissance e tiny green plastic fsmalI Italian

glass g large old Spanish h shiny circular metal

ilarge transparent plastic j wealthy young American

a bored b surprising c worrying d confusing

e relaxed fworried g interested h entertaining

isurprised jdistracted

2

Unit 45

a Human activities can upset the balance of nature.

(1) For example, when humans bum wood, coal or

petrol, sulphur and nitrogen compounds are added

to the air, and these falI in rain and cause changes to

the water of lakes and rivers so that fish die.

b These games help younger children understand

basic number concepts. Adding, subtracting, and

getting to know numbers are explained in cartoons

of everyday activities, (S) such as playing football,

getting on a bus, or go ing to the beach.

c Some energy sources are called 'non-renewable'

because in the end they will run out. (3) For

example, we cannot make oil, which was formed

millions of years ago trom the remains of ancient

sea plants and animals.

d A risk factor is anything that increases a person's

chance of getting a disease. (2) For example,

sunbathing too much is a risk factor for skin cancer

and and smoking is a risk factor for lung cancer.

e The Wild Information page tells you what you want

to know about wild animals. It includes information

about dangerous predators, (6) such as tigers,

cheetahs and great white sharks.

f Science Naw is great magazine which explores the

science behind the news,(4) su ch as why planes

crash, and why athletes shouldn't use drugs.

h Aliens might invade the Earth and might do the same

thing. iOn the other hand, things might continue as

they are! jSo it might be better not to worry so much.

Unit 36

1 a very

g very

Unit 30

a the b - c a d the e - f - g the h the

ithe jAk a I the m - n -

1

Unit 27

aC bC

iC jC

Unit 23

a Ancient sailors couldn't travel far because they usually

folIowe d the coastline. b Early ships were very smalI,

but they had to carry a lot of fresh food and water.

c SmalI sailing ships were unable to survive heavy storms

and very bad weather. d There was no radio, so they

could only send messages home if they met other ships.

e They didn't have accurate maps, so they had to guess

their exact position. fThey didn't have radar, so it they

needed to keep a close look-out for dangerous rocks. g

They had to be able to see the Sun or the stars in order

to navigate h There were no rescue organizations, so if

they got into trouble, they had to lo ok after themselves.

Unit 24

a A lot of terrible things might happen to the Earth.

b An object trom space might hit it. c Or a huge

volcanic eruption might change the climate.

d Hurricanes and tomadoes might spread across the

world. e Or climate change might lead to a sudden Ice

Age. fBefore that, a nuclear accident might destroy life

on Earth. g A new disease might kill nearly everyone.

Unit 20

a are produced b are made c are directed

d is spent e are watched fare made g are loved

h are shown iwas directed jwas based kwas

threatened I was released m has been enjoyed

Unit 18
1 a If weather patterns change, droughts and floods
will be more frequent. b If water becomes warrner
in the gulf of Mexico, the strength of hurricanes will
increase. c If rain falls at the wrong time, farmers
will be unable to grow their crops. d If rainfall
increases, there will be mor e soil erosion and
deserts will spread. e If glaciers vanish,'local areas
will become short of water. fIf permafrost melts
in polar regions, the landscape will change. g If
polar ice melts, sea levels will rise. h If ecosystems
change, some plants and animals will change their
habitat. iIf the GuU Stream grows weak, northem
Europe will become colder j If temperatures rise,
forest fires will become more frequent.
2 a If you melted a medium-sized iceberg, you would
have enough water to supply a big city for several
weeks. b If Amazonia was / were a country, it
would be the ninth largest in the world. c If you
put all the cells from your brain in a straight lin e,
they would reach for 1,000 km. d If you were a
sloth, you would spend 18 hours a day sleeping.
e If you had a piece of sun 2.5 cm square, it would
shine brighter than 1000 60 watt light bulbs.
fIf you had a piece of sun, it would bum you to
nothing! g If you flew a pIane to Neptune, it
would take nearly 290 years to get there. h If all
the matter in a baby became energy, it would run a
power station for a year.