单选题We' 11 have to keep our fingers crossed for him. The doctor says his chances of complete recovery are only fifty percent.
单选题Lemonade is not a new drink. It __________.
单选题He always thinks of ______ he can do more for the people.
单选题The air-conditioner is so energy-efficient that it can save thousands of dollars a year in electricity bill alone.
单选题I'm amazed that the young actress married the photographer so soon, for she ______ him very well. A. won't have known B. can't have known C. shouldn't know D. mustn't know
单选题Before we can decide where to buy our materials, we require as much information as we can get on the suppliers. A．我们需要从各供应商处得到足够的信息，之后才能决定从何处购买材料。 B．在决定从何处购买材料之前，我们需要各供应商给我们尽可能多的信息。 C．我们可以先决定在哪里购买材料，然后再从卖方那里找出所有的相关信息。 D．在决定从何处购买材料之前，我们需要收集尽可能多的关于各供应商的信息。
单选题Never ______ until tomorrow what you may be done today.A. put forwardB. put overC. put throughD. put off
单选题Before we moved to America, we ______ in Australia for ten years. A. lived B. living C. had lived D. have lived
单选题People went back to the countryside when they had ______.
单选题My car ______, and I had to walk five miles to the nearest garage.
单选题
Refrigeration (冷藏) is one of the most
important means of keeping food. Refrigeration makes anything cold. Scientists
and engineers have discovered many means of making things cold.
One way is to allow water, or another liquid, to evaporate (蒸发).
Evaporation cools a liquid and the liquid cools the food. Cold
can also be produced by passing a gas through a small hole. Gases are made up of
molecules (分子). Before the molecules pass through the small hole, they are close
together. They are also moving quickly. Afterwards they are further apart and
moving more slowly. Because the molecules are moving slowly, the gas is cool.
The slower the molecules move, the cooler the gas will be. If the molecules move
very slowly the gas changes into a liquid. Liquid oxygen can be made by passing
it through a small hole.
单选题A.Sorry,Ican't.B.CanIhelpyou?C.Whatareyoudoing?D.I'mafraidyou'vegotthewrongnumber.
单选题Fruit is rich ________ vitamins. A．with B．in C．at D．of
单选题Only in this way ______ this difficult math problem.
单选题Directions: After reading the following passage, you will
find 5 questions or unfinished statements, numbered 36 to 40. For each question
or statement there are 4 choices marked A), B), C) and D). You should make the
correct choice and mark the corresponding letter on the Answer Sheet with a
single line through the center. It is not
easy to pin—point (精神地定位) the origins of the Christmas feast, today the most
important feast of the Christmas season in most western Christian churches. One
can only say for certain that the birth of Jesus Christ was being celebrated in
Rome by the year 336 AD; afterwards the feast was celebrated in other Christian
churches throughout the world. Why it was celebrated on
December 25 is another question. No date for the birth of Jesus can be found in
the New Testament, which is concerned more with the question "Who is Jesus?"
than the date of his birth. Early Christian speculation about his birth
date was influenced by the symbolism of the changing seasons, then popular in
religious thought, which paid careful attention to the equinoxes (春分或秋分) and
solstices (夏至或冬至) of the sun. Christian scholars speculated that Jesus was
conceived at the spring equinox (March 25) and therefore was born on December
25, the date of the winter solstice.
单选题A.Gotothepark.B.Workinthegarden.C.Readbooks.D.WatchTV.
单选题______ quite recently, most mothers in Britain did not take paid work outside the home. A. Before B. Until C. From D. Since
单选题The young singer ______ sang
Colours of Wind
won the first prize in the contest.
单选题This is a must-have book for every gardener, from learner to expert.
单选题