___3___ some conditions, algae suddenly begin to spread very quickly, an event ___4___ (know) as a bloom. When algae bloom, they can change the color of the water as they form dense areas near the surface. You may ___5___ (hear) the term “red tide”. But experts say this is ___6___ (correct). Blooms are not connected with tides, and
___7__do not always appear red – the water can look brown ___8___ greenish. So, instead of “red tide”, scientists use the term “harmful algal bloom”, or HAB ___9___ short. Not only the fish that feed on algae are dangerous to eat, bigger fish that eat the algae-eaters may also be
10
(danger).
Keys:1. are 2. These 3. Under4. known 5.have heard 6. incorrect 7. they 8. or 9. for 10. also
考点:1、倒装句 2、指示代词 3、介词(短语) 4、非谓语动词(过去分词)
5、完成时 6、构词法(反义词)7、词 8、并列连词
9、介词10、词—。
(十)
Recently, archaeologists announced the discovery of ___1___ 4,000-year old temple in Lambayeque, Peru. The temple was built around 2,000 B.C., ___2___ (make) it one of the oldest archaeological finds in the Americas. The site ___3___ (locate) in Peru’s northern coastal desert. The religious structure, ___4___ researchers have named “Ventarron”, was built of clay bricks made from mud ___5___ (find) in local rivers. Some of the walls of
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