CETACEANS: FACT FILE
There are over 80 species of whales, dolphins and porpoises, (1)_____
collectively as ‘cetaceans’, throughout the world. They come in all shapes and sizes. Here are some facts and figures about these incredible animals.
The blue whale is (2)____
animal on Earth. The average adult length is 25m for males and 26.2m for females, (3)____
body weights of 90-120 tonnes.
Hector.s dolphin is the world.s shortest cetacean. They may be only 1.2m long when fully (4)____
.
A blue whale eats up to 4 tonnes of krill daily. This is equivalent (5)____
a fully grown African elephant every day.
The sperm whale (6)____
dive deeper than any other cetacean. They have been known to dive as deep as 2000m.
One bowhead whale is reported to (7)____
130 years old when it died.
The sperm whale has the world.s heaviest brain (8)____
can weigh up to 9.2kg. This compares (9)____
the average 1.4kg for the brain of an adult human.
The baiji dolphin, or Chinese river dolphin, is the rarest dolphin in the world and is reported to be endangered. It lives in the Yangtze River in China. Conservation measures (10)____
by the Chinese to save it.
1. A. know B. to know C. knowing D. known
2. A. heavy and long B. the heaviest and longest
C. the most heavy and long D. heavier and longer
3. A. whose B. with C. have D. which
4. A. grown B. growing C. to grow D. grow
5. A. to eat B. about eating C. to eating D. as eating
6. A. believed to B. is believed to C. was believed to D. has believed to
7. A. have been B. be C. being D. having been
8. A. who B. what C. which D. whom
9. A. to B. as C. with D. for
10. A. are taking B. are taken C. were taken D. are being taken
答案
正确答案是 ：
1．答案为D。此处为过去分词短语做后置定语，意思是“被称为”。know sb/sth as sth是固定短语，意思是 “称为; 起绰号；叫作”，常用作被动语态，例如：This area is known as the ‘Cornish Riviera’这地区称为 ‘康沃尔郡度假胜地’。
2．答案为B。此处由于有了限定的范围，即on earth，世界上，因此需要形容词最高级，heavy 和long的最高级形式应该是the+--est。因此应选B。
3．答案为B。 此题可采用排除法，因为空格后面不是完整的句子，而是名词短语，因此可以逐一排除选项A、C和D，只能选B。此处with引导的名词短语，是独立主格结构，相当于非限制性定语从句。
4．答案为A。 该空格所在的句子为一个省略句，实质上省略了与主句相同的主语和谓语部分，即they are, 因此此处需要一个可以做表语的形容词，因此只能选A。fully grown意为“发育成熟的”。
5．答案为C。be equivalent to sth/doing sth，意思是“等同于……”。注意to 为介词，因此其后面需要跟名词或动名词。
6．答案为B。is believed to do sth意思是“据信做什么”。由此可以判断只有B和C有可能正确，再一看上下文使用的是一般现在时，因此只有B正确。
7．答案为A。is reported to do sth 意思是 “据报道做什么”。注意to 为动词不定式符号，其后要求跟动词原形，因此只有A和B有可能正确，再一看上下文可以判断报道的内容发生在报道这一动作之前，因此只能选A。
8．答案为C。此处需要填的是引导修饰brain的定语从句的关联词，因修饰物，不能选who或whom。而what在此处也不适合，因为它具有身兼三职的作用，相当于the thing which/that, 既作主句中的宾语, 又作从句中的宾语，同时还连接主从句。因此处已提供了被修饰词brain，所以选C，which最合适。
9．答案为C。 此处compare with sth为固定短语，意思是“和……相比；值得相比”。注意compare sth to sth的意思是“把……比作……”。
10．答案为D。根据上下文判断此处需要填的是现在进行时的被动语态，正确形式是“be+being+动词的过去分词”，因此只能选D。
问题 更新时间2023/4/3 12:59:00
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