c() n. the most important or central part of sth.

Why are the lives of plants not well-known to most people？

A．Because plants are not important to people.

B．Because plants" time-scale is different from ours.

C．Because plants are not in constant motion.

D．Because it is impossible for people to know it.

A．Members have a narrow range of topics to discuss.

B．Members bring up the most important issue.

C．Members have interesting topics to discuss.

D．Members have little knowledge.

It is the author's view that in human civilization agriculture______.

A．is the most important step man has ever made

B．is only less important than the discovery of fire

C．had long been practiced since 3000B.C.

D．can be ranked in importance with the invention of machines

27 Each day we get a lot of messages from __

28 Television, radio and books are all important media of __

29 For most people television is the most important __

30 The mass media are important to us because they shape __

A our decisions and opinions

B mass communication

C our messages

D source of information

E the mass media

F sports news

A、A. Porque en la antigüedad, las mujeres no podían sobrevivir más que dependiendo de su marido.

B、B. Porque representa una posición social alta.

C、C. Porque les gustan los quehaceres domésticos.

D、

A.tomar

B.tomen

C.toman

D.tomando

根据短文回答 31～35 题。

Why Not Eat Breakfast？

Breakfast is not only the most important meal of the day, it is also the most neglected or skipped.Common reasons for not eating breakfast include lack of time,not feeling hungry, traditional dislike for breakfast,and dieting.

Breakfast simply means" break the fast."Your body spends at least six to twelve.hours each night in a fasting state.In the morning your body needs energy to rev up(转动起来)、into high gear for the day's work ahead.

If you skip breakfast,you are likely to concentrate less effectively in the late morning,feel irritable,short—tempered(易怒的),tired,or weak.

When you choose not to eat breakfast,your body stays in slow gear.Also,people who skip breakfast often binge(无节制地大吃)later in the day at other meals or eat a high calorie(高卡路里)snack in the morning.Breakfast eaters tend to eat less fat during the day, have more strength and endurance and better concentration and problem-solving ability.

A good breakfast should provide up t0 113 0f your total calorie needs for the day.On the average,we eat 400 less calories for breakfast than for dinner.If breakfast doesn't appeal to you in the morning,try eating a lighter dinner earlier in the evening or save half your dinner for breakfast in the morning.

1f you still aren't hungry in the morning,start with something small like juice or toast or have a mid—morning snack later when you are hungry.

Not eating breakfast can also cause you to overeat,since a fall in blood sugar often makes you feel very hungry later.To make matters worse,since your body is in a slowed state,it will not be able to burn those extra calories very efficiently.If you feed your body healthy snacks and meals throughout the day, you are less likely to become extremely hungry and stuff yourself as soon as you begin to eat.

Since breakfast is the first and most important meal of the day, choosing the right fuel is important.The best breakfast foods are fruits,juice,lean meat,and grain products such as breads,rice,noodles,and cereals.

第 31 题 The word "fast" in the phrase" break the fast" in paragraph 2 means（）

A．"a series of quick actions"

B．"a habit of eatin9".

C．"a strict rule".

D．"a period of not eatin9".

A．El sueldo es fijo

B．se pide un teléfono ．

C．no importa la eda

D．

A．El sueldo es fijo

B．se pide un teléfono ．

C．no importa la eda

D．