Unit 1 The natural world - Bird migration

Question 1

n. movement from one place to another

Answer 1

migration

Question 2

v. to interest greatly

Answer 2

fascinate

Question 3

n. priority; an urgent need

Answer 3

imperative

Question 4

v. to live in

Answer 4

inhabit

Question 5

n. a person who watches sth

Answer 5

observer

Question 6

v. to develop and change

Answer 6

evolve

Question 7

v. to reproduce

Answer 7

breed

Question 8

n. one half of the Earth; one half of a sphere

Answer 8

hemisphere

Question 9

adj. best; most favorable

Answer 9

optimal

Question 10

n. type; a basic group in biological classification

Answer 10

species

Question 11

v. to provide energy

Answer 11

fuel

Question 12

v. to live under difficult conditions

Answer 12

endure

Question 13

adj. unprotected from the wind

Answer 13

windswept

Question 14

n. a difficult act or achievement

Answer 14

feat

Question 15

n. a part or feature

Answer 15

aspect

Question 16

adj. active during the day

Answer 16

diurnal

Question 17

adj. active at night

Answer 17

nocturnal

Question 18

v. to leave the correct route; to become separated from the group

Answer 18

stray

Question 19

v. to make difficult to see

Answer 19

obscure

Question 20

n. finding and following one’s route

Answer 20

navigation