[单项选择]It's known to all that light travels much more quickly than sound does（）
A. 所有知道的全部内容就是光跑的速度要比声音快得多。

[单项选择]Why is education much more open-ended and all-inclusive than schooling


A. because education knows no bounds and can take place anywhere.
B. because education includes both the formal learning and the whole universe of informal learning.
C. because the agents of education can range from a variety of people.
D. All of the above.

[单项选择]All of us would have enjoyed the party much more if there __________ quite such a crowd of people there.

[单项选择]______ is known to all, the moon travels around the earth.
A. As
B. Which
C. That
D. What

[单项选择]The whole path ______ electricity travels is known as a circuit.


A. which
B. along which
C. along with
D. in that

[单项选择]Punishment for violating moral rules is much more common than reward for following them; thus, ______the rules goes almost ______in society.
A. association with... undefended
B. adherence to... unnoticed
C. affiliation of... uncorrected
D. opposition to... unchecked

[单项选择]So much have we achieved, so much more ______.
A. is there to achieve
B. there is to achieve
C. be there to achieve
D. there should be to achieve

[单项选择]

Most growing plants contain much more water than all other materials combined. C. R. Barnes has suggested that it is as proper to term the plant a water structure as to call a house composed mainly of brick a brick building. Certain it is that all essential processes of plant growth and development occur in water. The mineral elements from the soil that arc usable by the plant must be dissolved in the soil solution before they can be taken into the root. They are carried to all parts of the growing plant and are built into essential plant materials while in a dissolved state. The carbon dioxide (CO₂ ) from the air may enter the leaf as a gas but is dissolved in water in the leaf before it is combined with a part of the water to form simple sugars --’the base material from which the plant body is mainly built. Actively growing plant parts are generally 75% to 90% water. Structural parts of plants, such as woody stems no longer actively growin
A. the functions of carbon dioxide and water
B. the role of water in a growing plant
C. the process of simple sugar formation
D. the synthesis of water with carbon dioxide

[单项选择]

Text 3
Most growing plants contain much more water than all other materials combined. C. R. Bames has suggested that it is .as proper to term the plant a water structure as to call a house composed mainly of brick a brick building. Certainly it is that all essential processes of plant growth and development occur in water. The mineral elements from the soil that are usable by the plant must be dissolved in the. soil solution before they can be taken into the root. They are carried to all parts of the growing plants and are built into essential plant materials while in a dissolved state.
The carbon dioxide (CO₂) from the air may enter the leaf as a gas but is dissolved in water in the leaf before it is combined with a part of the water to form simple sugars -- the base material from which the plant body is mainly built. Actively growing plant parts are generally 75 to 90 percent water. Structural parts of plants, such as wood
A. The mineral elements will not be absorbed by the plant unless they are dissolved in its root
B. The woody stems contain more' water than the leaves
C. Air existing around the leaf is found to be saturated
D. Only part of the carbon dioxide in the plant is synthesized

[单项选择]According to Stouffer, why were GIs much more friendly towards their officers in combat


A. Because they were afraid of being assigned dangerous tasks.
B. Because they could release their pent-up frustration against the enemy.
C. Because they were more like equals and friends in face of enemy.
D. All of the abov