TASK 3

• sky/skaɪ/ • space/speis/

NOTE

• bounce/'bauns/ • earthward/'ә:θwәd/ • reflection/ri´flekʃәn/ • attenuate/ә´tenju¸eit/ • season/´si:zәn/ • gradually /'grædʒuәli/ • refract/ri´frækt/

• skyward/'skaiwәd/ • certain/['sә:tn]/ • critical/ˈkrɪtɪkәl/ • typical/'tipikl/ • return/ri'tә:n/ • ionosphere/ai´ɔnә¸sfiә/ • layer/'leiә/ • molecule/´mɔli¸kju:l/ • stretch /stretʃ/ • strike/straik/

TASK 3

TASK 3

• satellite/'sætәlait/ • communication/kә,mju:ni'keiʃn/

intervene/¸intә´vi:n/

• line of sight • effective/'ifektiv/ • • obstacle/'ɔbstәkl/ • hill/hil/ • tree/tri:/

TASK 3

TASK 4

• label/'leibl/

CONTENTS

• Information transfer • Reduced time clauses • Word formation • Radio • Describing a process

TASK 4

• period/'piәriәd/ • lose/lu:z/

• action /'ækʃn/ • subject /'sʌbdʤikt/ • happen /'hæpәn/

TASK 4

• immediately/i'mi:djәtli/

TASK 5

• switch /switʃ/ • current /'kʌrәnt/ • flow /flow/ • primary /'praimәri/ • close/klous/ • radar/'reidә/ • plane/plein/ • cell/sel/ • discharge/dis'tʃɑ:dʤ/