עמוד:135

D 1 Complete the sentences with the words below . There are two extra words . lower collect environment pressure reach engine climate natural 1 . The students are studying how to keep the environment clean . 2 . My grandfather’s hobby is to stamps . 3 . It took us two hours to Tel Aviv because it was raining . 4 . Dad took his car to the garage . There was a problem with the . 5 . Scientists say that the world’s is getting hotter . 6 . I felt the in my ears at the top of the mountain . 2 Write sentences with each of the two words you didn’t use in exercise D 1 . D 1 D 1 E Write three questions to ask a marine scientist about his or her work . Use the words from below . discover examine least collect satellite marine collect explore underwater area creature mud 1 . How do you explore the sea ? 2 . 3 . 4 . F Prefixes : sub-, inter- and under-. 1 Match A to B . Pay attention to the words with prefixes in bold . B A B A A 1 . The temperature was subzero . 2 . Tal went through the underpass . 3 . People travel on the subway . 4 . Fish live in the underwater cave . 5 . It is an international company . B a . They take the train . b . It has offices all over the world . 1 c . It was freezing cold . d . The divers love to explore there . e . He walked to the other side of the road . 2 Choose two words with a prefix in exercise F 1 and write a sentence with each . F 1 F 1 When we visited New York we took the subway .

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