Even though the pure water is what gives sea water its main properties, the salinity of the sea wat——青夏教育精英家教网—

2. Even though the pure water is what gives sea water its main properties, the salinity of the sea water affects both its weight and freezing point.

1. Life in the oceans ranges from the tiniest plankton all the way up to giants like sharks and whales.

1. benefit　　 2. planets　 3. decreased　　 4. freezes　　 5. sensitive　　 6. substance　　 7. unique　　 8. absorbed　　　 9. distance　　　 10. fiction

(略)

1. which there is　　 2. is it that　　 3. what…… effect on……

Key to 高二(下)Unit 13词汇测试

1. are àis　 2. so àas　 3. 第二个whichàwhat　　4. riseàraise　 5. makeàmaking　　 6. how àthat/ in which　　 7.frozen àfreezing　　 8. getting àget　　9. protectàprotecting　　 10. steadilyàsteady

1-5: BCDAC　　6-10: ADDBA　 11-15: ACCAD　　16-20: BCCDA　　21-25: BDDCA

1、turn … upside down	11、give off
2、come up with…	12、benefit from/ by
3、call in	13、be made up of
4、range from…all the way to…	14、a drop of rain
5、that is to say	15、mix up
6、break down	16、play a trick on …
7、take advantage of	17、become available to
8、be sensitive to	18、do the work
9、a variety of	19、make notes of
10、contribute to….	20、compare …to …

7、　现在的食品物价在5美元至50美元之间。 (range between… and…)

Key to高二(下)自编练习Unit 13 (SB2B):

6、　物价随季节而变动。 (vary with……)

0 301857 301865 301871 301875 301881 301883 301887 301893 301895 301901 301907 301911 301913 301917 301923 301925 301931 301935 301937 301941 301943 301947 301949 301951 301952 301953 301955 301956 301957 301959 301961 301965 301967 301971 301973 301977 301983 301985 301991 301995 301997 302001 302007 302013 302015 302021 302025 302027 302033 302037 302043 302051 447348

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