首页
登录
职称英语
Dinosaurs, saber-tooth tigers and the dodo bird are famous examples of (1)__
Dinosaurs, saber-tooth tigers and the dodo bird are famous examples of (1)__
游客
2024-12-26
44
管理
问题
Dinosaurs, saber-tooth tigers and the dodo bird are famous examples of (1)______
animals that have become extinct. In case of the dinosaurs, it seems likely (2)______
that a catastrophic event alters the global climate enough to lead to their dis- (3)______ appearance. More recent extinctions and near-extinctions—such as the blue
whales, tiger, panda, and North American bison—have been the direct result (4)______
of human activity. By the early 1990s, species were becoming extinct at a
rate of three per hour, or 27,000 every year—a figure quoted by the Ameri
can biologist Edward O. Wilson of Harvard University, based on his most
conservative estimates. This rate of extinctions carries with it some terrible
consequences. Each plant that becomes extinct, for example, may take with
it as much as 30 insects and animals that depend on it for food. Habitat loss (5)______
is one of the most important causes of extinction. For rising populations in (6)______
many countries lead to the clearing of more land, habitats such as raining (7)______
forests and grasslands disappear.
In the East Africa, once renowned for its wildlife, few wild animals re- (8)______
main living outside the boundaries of national parks and game reserves. In (9)______
other parts of the world, coastal ecosystems are clearing for development. (10)______
Wetland areas are drying out as a result of water extraction to support farm
ing and tourism. Bird species are among the worst affected by the loss of
wetlands. [br] (10)
选项
答案
clearing — cleared
解析
clear作为动词有“扫除(障碍)”这个意思,这时它是及物动词,如:The firemenhave cleared rubbles for entry into the building.那么它的被动语态是Rubbles have beencleared for entry into the building.
转载请注明原文地址:https://tihaiku.com/zcyy/3884657.html
相关试题推荐
LincolnendedhisfamousGettysburgSpeechbythesewords:"thatgovernment____
Onecenturyago,intheyearbeforeFreudandJung’sfamousvisithere,Amer
Onecenturyago,intheyearbeforeFreudandJung’sfamousvisithere,Amer
Onecenturyago,intheyearbeforeFreudandJung’sfamousvisithere,Amer
Onecenturyago,intheyearbeforeFreudandJung’sfamousvisithere,Amer
Onecenturyago,intheyearbeforeFreudandJung’sfamousvisithere,Amer
Dinosaurs,saber-toothtigersandthedodobirdarefamousexamplesof(1)__
Dinosaurs,saber-toothtigersandthedodobirdarefamousexamplesof(1)__
Dinosaurs,saber-toothtigersandthedodobirdarefamousexamplesof(1)__
Dinosaurs,saber-toothtigersandthedodobirdarefamousexamplesof(1)__
随机试题
[audioFiles]audio_etoefz_043(20051)[/audioFiles]A、HedisagreeswiththewomanB
Therearesuperstitionsattachedtonumbers;eventhoseancientGreeksbelie
Aestheticthoughtofadistinctivelymodernbentemergedduringthe18thc
ManyAmericansmindlesslyopposehunting.Theydosoevenincaseswhereani
A.每搏量的多少 B.每分输出量的多少 C.外周阻力的大小 D.大动脉弹性
柱受力如所示,柱顶将产生何种变形?( ) A.水平位移、竖向位移、转角 B
正常新生儿生理体重下降的时间及程度为A.生后一周内暂时性体重下降10~15%
抗甲状腺药物的副作用主要是()。A.皮肤瘙痒 B.剥脱性皮炎 C.中毒性肝炎
市场细分的直接细分依据包括()。A:地理因素 B:投资者行为因素 C:心理因
根据《职业安全健康管理体系导则》(ILO一OSH2001)的要求,生产经营单位所
最新回复
(
0
)