locust

简明释义

英[ˈləʊkəst]美[ˈloʊkəst]

n. [植保] 蝗虫，[昆] 蚱蜢

复 数 l o c u s t s

英英释义

单词用法

同义词

反义词

例句

1.Such nightmare visions, and locust plagues with them, may one day be a thing of the past.

但愿有一天这种噩梦似的景象和与此相伴的蝗灾将会成为历史。

2.The locust-trees were in bloom and the fragrance of the blossoms filled the air.

槐树正开着花，空气中弥漫着花香。

3.There were millions of them around us - a locust sandstorm.

我们周围有数百万只蝗虫—一场蝗虫风暴。

4.Of these you may eat any kind of locust, katydid, cricket or grasshopper.

其中有蝗虫，蚂蚱，蟋蟀与其类，蚱蜢与其类，这些你们都可以吃。

5.During the 1988 desert locust plague, swarms crossed the Atlantic from Mauritania to the Caribbean, flying 5 000 kilometres in 10 days.

在1988年的沙漠蝗灾中，蝗群从毛里塔尼亚穿越大西洋来到加勒比，10天之内飞行了5000公里。

6.I'll be honest, deep-fried locust is not the most delicious snack I've ever had.

老实讲，油炸蝗虫的确不是我曾吃过的最美味的小吃。

7.As with gingerbread men and gummy bears, the dilemma when served a locust is whether to begin eating it head or legs first.

就像吃姜饼的人和小熊软糖一样，吃蝗虫时的窘境是先吃它的头还是腿。

8.On a visit to an insect farm, she greedily peels the wings and legs off a freeze-dried locust and crunches down with gusto.

在她参观一家昆虫农场时，她贪婪地剥下一只冻干的蝗虫的翅膀和腿，然后兴奋地吞下了肚。

9.Tiny packets of smoke released near a flying locust showed air swirls similar to swirls predicted by the model.

在飞行蝗虫周围释放的小范围烟雾表明，实际气旋类似于模型预言的气旋。

10.In some cultures, fried locust 蝗虫 is considered a delicacy.

在一些文化中，炸locust 蝗虫被视为一种美味。

11.Scientists are studying the migration patterns of locust 蝗虫 to predict future outbreaks.

科学家正在研究locust 蝗虫的迁徙模式，以预测未来的爆发。

12.The locust 蝗虫 plague affected millions of people in East Africa last year.

去年，locust 蝗虫灾害影响了东非数百万人。

13.The farmer was worried that the swarm of locust 蝗虫 would destroy his crops.

农民担心这群locust 蝗虫会毁掉他的庄稼。

14.During the dry season, locust 蝗虫 populations can explode rapidly.

在干旱季节，locust 蝗虫的数量可以迅速激增。

作文

The phenomenon of swarming locust (蝗虫) has been a topic of fascination and concern for centuries. These insects are known for their ability to form massive swarms that can devastate crops and natural vegetation, leading to food shortages and economic turmoil in affected regions. In this essay, I will explore the biology of locust (蝗虫), their behavioral patterns, and the impact they have on agriculture and society.Firstly, it is essential to understand what defines a locust (蝗虫). Unlike other grasshoppers, locust (蝗虫) have the unique ability to change their behavior and physical characteristics in response to population density. When the population is low, they behave like solitary insects, but when conditions are right, such as abundant food and suitable breeding grounds, they undergo a transformation into a gregarious phase. This phase is characterized by changes in color, size, and behavior, allowing them to swarm in large numbers.The swarming behavior of locust (蝗虫) is triggered by environmental factors such as drought followed by rainfall, which creates ideal conditions for breeding. Once a swarm forms, it can travel vast distances, consuming everything in its path. A single swarm can contain billions of individuals, and when they descend upon farmland, they can strip fields bare in a matter of hours. This destructive capability poses a significant threat to food security, especially in developing countries where agriculture is a primary source of sustenance and income.Moreover, the economic impact of locust (蝗虫) swarms can be devastating. Farmers who rely on their crops for survival may find themselves in dire straits after a swarm passes through their fields. The loss of crops not only affects individual farmers but can also lead to increased food prices and shortages in local and global markets. Governments often struggle to respond effectively, as controlling a swarm of locust (蝗虫) requires significant resources and coordination. Efforts to combat these pests include aerial spraying of pesticides and implementing preventive measures to monitor and manage their populations before they reach swarm levels.In addition to the immediate agricultural impacts, locust (蝗虫) swarms can also have long-term social implications. Communities that rely heavily on agriculture may face increased poverty and malnutrition as a result of crop failures. This can lead to social unrest and migration as people seek better opportunities elsewhere. Furthermore, the psychological toll on farmers who witness the destruction of their livelihoods can be profound, leading to feelings of hopelessness and despair.Despite the challenges posed by locust (蝗虫) swarms, there is hope in the form of research and technology. Scientists are studying the genetics and behavior of locust (蝗虫) to develop better management strategies. Innovations such as remote sensing and predictive modeling can help forecast swarm movements and enable timely interventions. Additionally, community engagement and education are crucial in empowering local populations to recognize early signs of swarming and take proactive measures.In conclusion, locust (蝗虫) swarms are a complex phenomenon that poses significant threats to agriculture and society. Understanding their biology and behavior is essential for developing effective strategies to mitigate their impact. As we continue to advance our knowledge and technology, we must also prioritize the resilience of communities affected by these pests, ensuring that they have the resources and support needed to adapt and thrive in the face of such challenges.