All the characteristics that distinguish birds _____ other animals can be traced to

government that would distinguish the liberal idea of government EXCEPT______.

A．the emphasis on the rights of private citizens

B．the activities government may legitimately pursue

C．the obligation of citizens to participate in government

D．the size of the geographical area controlled by a government

businesses？I.Centralization of managementII.Continuity of lifeIII.Free transferability of ownership interestsIV.Limited liabilityV.Profit motive()

A、All are distinguishing characteristics

B、Statements I, II, III and IV are correct

C、Only statement III is correct

D、Statements IV and V are correct

E、Statements I, II, IV, and V are correct

government that would distinguish the liberal idea of government from the Greek idea of government EXCEPT ______.

A．the emphasis on the rights of private citizens

B．the activities government may legitimately pursue

C．the obligation of citizens to participate in government

D．the size of the geographical area controlled by a government

Hearing the gunshot, all the birds flew______every direction.

A．in

B．on

C．to

D．toward

haracteristics of birds are: wings; a short tail bone; the visible tail being composed entirely of feathers; a weak or nonexistent sense of smell; no teeth; and keen hearing, despite the absence of external ears. As in mammals (哺乳动物), the only other group of warm-blooded animals, the blood in the veins (静脉) of birds is kept totally separated from the blood in the arteries(动脉).

Birds evolved from reptiles, especially from some small dinosaur-relative. Gradually the scales of the dinosaur evolved into feathers, perhaps first for insulation as the animal evolved from cord to wing blade but later for flight. It is still unknown, however, whether flight developed when a ground-living form. began to flap its wings to increase its running speed (like the ostrich today), or when a tree climbing form. used imperfect wings to aid it in leaping from tree limb to tree limb. The evolution from reptile to the bird as we know it concluded about 75 million years ago, at the beginning of the Tertiary period, or age of mammals.

The earliest classification of birds relied upon easily recognized external characteristics or upon peculiarities of behavior. or appearance. For example, all web-footed birds were grouped together and all seed-eating birds were grouped together. Since the 19th century and the general acceptance of evolution, however, this method has given way to a sounder and more scientific procedure. Birds, as well as all other living things, are now classified in a way that best expresses their blood relationships and lines of descent. This kind of classification is known as a phylogenetic classification(系谱分类).

This passage is most probably taken from a ______.

A．piece of science fiction (科幻小说)

B．lecture

C．romantic story

D．news story

Why does the text say "they do not all sleep"？

A．Because all the birds do not sleep at night.

B．Because many of the birds do not sleep at night.

C．Because the nightingale does not sleep at night.

Task 2

Directions: This task is the same as Task 1. The 5 questions or unfinished statements are numbered 41 through 45.

Birds are warm-blooded, vertebrate animals whose bodies are covered with feathers. Other characteristics of birds are: wings; a short tail bone; the visible tail being composed entirely of feathers; a weak or nonexistent sense of smell; no teeth; and keen hearing, despite the absence of external ears. As in mammals (哺乳动物), the only other group of warm-blooded animals, the blood in the veins (静脉) of birds is kept totally separated from the blood in the arteries (动脉).

Birds evolved from reptiles, especially from some small dinosaur-relative. Gradually the scales of the dinosaur evolved into feathers, perhaps first for insulation as the animal evolved from cord to wing blade but later for flight. It is still unknown, however, whether flight developed when a ground-living form. began to flap its wings to increase its running speed (like the ostrich today), or when a tree climbing form. used imperfect wings to aid it in leaping from tree limb to tree limb. The evolution from reptile to the bird as we know it concluded about 75 million years ago, at the beginning of the Tertiary period, or age of mammals.

The earliest classification of birds relied upon easily recognized external characteristics or upon peculiarities of behavior. or appearance. For example, all web-footed birds were grouped together and all seed-eating birds were grouped together. Since the 19th century and the general acceptance of evolution, however, this method has given way to a sounder and more scientific procedure. Birds, as well as all other living things, are now classified in a way that best expresses their blood relationships and lines of descent. This kind of classification is known as a phylogenetic classification (系谱分类).

This passage is most probably taken from a ______.

A．piece of science fiction (科幻小说)

B．lecture

C．romantic story

D．news story

Task 2

Directions: This task is the same as Task 1. The 5 questions or unfinished statements are numbered 41 through 45.

Birds are warm-blooded, vertebrate animals whose bodies are covered with feathers. Other characteristics of birds are: wings; a short tail bone; the visible tail being composed entirely of feathers; a weak or nonexistent sense of smell; no teeth; and keen hearing, despite the absence of external ears. As in mammals (哺乳动物), the only other group of warm-blooded animals, the blood in the veins (静脉) of birds is kept totally separated from the blood in the arteries(动脉).

Birds evolved from reptiles, especially from some small dinosaur-relative. Gradually the scales of the dinosaur evolved into feathers, perhaps first for insulation as the animal evolved from cord to wing blade but later for flight. It is still unknown, however, whether flight developed when a ground-living form. began to flap its wings to increase its running speed (like the ostrich today), or when a tree climbing form. used imperfect wings to aid it in leaping from tree limb to tree limb. The evolution from reptile to the bird as we know it concluded about 75 million years ago, at the beginning of the Tertiary period, or age of mammals.

The earliest classification of birds relied upon easily recognized external characteristics or upon peculiarities of behavior. or appearance. For example, all web-footed birds were grouped together and all seed-eating birds were grouped together. Since the 19th century and the general acceptance of evolution, however, this method has given way to a sounder and more scientific procedure. Birds, as well as all other living things, are now classified in a way that best expresses their blood relationships and lines of descent. This kind of classification is known as a phylogenetic classification(系谱分类).

This passage is most probably taken from a ______.

A．piece of science fiction (科幻小说)

B．lecture

C．romantic story

D．news story