2018年6月英語六級考試真題測試（19）含答案

2018年6月份的英語六級考試即將開考，今天一起來做英語六級真題練習題吧，找找考試的感覺。

Directions: Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). You should decide on the best choice and mark the corresponding letter on the Answer Sheet with a single line through the centre. 

Questions 24 to 30 are based on the following passage:

Allelomimetic behavior may be defined as behavior in which two or more individual animals do the same thing, with some degree of mutual simulation and coordination. It can only involve in species with sense organs that are well enough developed so that continuous sensory contact can be maintained. It is found primarily in vertebrates(脊椎動物), in those species that are diurnal, and usually in those that spend much of their lives in the air, in open water or on open plains. In birds, allelomimetic behavior is the rule rather than the exception, though it may occasionally be limited to particular seasons of the year as it is in the redwing blackbird.

Its principal function is that of providing safety from predators(掠食者), partly because the flock can rely on many pairs of eyes to watch for enemies, and partly because if one bird reacts to danger, the whole flock is warned. Among mammals, allelomimetic behavior is very rare in rodents(齧齒動物), which almost never move in flocks or herds. Even when they are artificially crowded together, they do not conform in their movements. On the other hand, such behavior is a major system among large hoofed mammals,such as sheep. In the pack hunting carnivores(食肉類飛禽), allelomimetic behavior has another function of cooperative hunting for large prey(被捕食者) animals,such as moose.

Wolves also defend their dens as a group against larger predators, such as bears. Finally, allelomimetic behavior is highly developed among most primate groups, where it has the principal function of providing warning against predators,as though combined defensive behavior is also seen in troops of baboons(狒狒).

24. The main topic of the passage is the ____.

A) value of allelomimetic behavior in vertebrate and invertebrate species

B) definition and distribution of allelomimetic behavior

C) relationship of allelomimetic behavior to the survival of the fittest

D) personality factors that determine when an individual animal will show allelomimetic behavior

25. Which of the following places is the most likely setting for allelomimetic behavior?

A) A lake.

B) A cave.

C) An underground tunnel.

D) A thick forest.

26. The author implies that allelomimetic behavior occurs most often among a nimals that ____.

A) prey on other animals

B) are less intelligent than their enemies

C) move in groups

D) have one sense organ that dominates perception

27. Which of the following is the most clear example of allelomimetic?

A) Bears hunting for carnivores.

B) Cattle fleeing from a fire.

C) Horses running at a racetrack.

D) Dogs working with police officers.

28. According to the passage the primary function of allelomimetic behavior in bird is to ____.

A) defend nests against predators

B) look at each other

C) locate prey

D) warn against predators

29. According to the passage, what happens to the behavior of rodents when they are artificially crowded together?

A) Their allelomimetic behavior increases.

B) Continuous cooperation between them is maintained.

C) They become aggressive and attack each other.

D) They show little allelomimetic behavior.

30. Which of the following groups of human beings would probably show the greatest amount of allelomimetic behavior?

A) A group of students taking a test.

B) Tennis players competing in a tournament.

C) A patrol of soldiers scouting for the enemy.

D) Drivers waiting for a traffic light to change.

【參考答案】

24-30 BA CBDDC

好了，以上是小編整理的英語六級模擬測試題的閱讀理解部分（不含聽力與作文），大家做的情況如何呢？

在做題時，一定要注意出題人的意圖，注意選項之間的細微差別和同意轉換，不要看到原文中的某個詞或某句話出現在選項中，就認爲這個選項是正確答案。一定多思考幾遍，從而找到正確答案。

最後，預祝大家都能取得理想的成績！

備考課程推薦：大學英語六級高效備考班

懶人四六級，一週備考期！