[填空题]We all know that trees are very (11) in our daily life. They give us many things, such as wood, oxygen, and many other things. They can also tell us a lot about our (12) , too.
If you cut across a tree, you can see that it has many rings. Most trees grow one new ring (13) . Because of the rings of the tree we know how old it is.
When the climate is (14) or cold, trees do not grow very much and their rings are usually thin. When it is wet and good for trees, the rings are much thicker. If the rings are suddenly (15) or suddenly much thicker, it means that the climate changed suddenly.

[填空题]We all know that trees are very (11) in our daily life. They give us many things, such as wood, oxygen, and many other things. They can also tell us a lot about our (12) , too.
If you cut across a tree, you can see that it has many rings. Most trees grow one new ring (13) . Because of the rings of the tree we know how old it is.
When the climate is (14) or cold, trees do not grow very much and their rings are usually thin. When it is wet and good for trees, the rings are much thicker. If the rings are suddenly (15) or suddenly much thicker, it means that the climate changed suddenly.

[单项选择]Our statistics show that we consume all that we are capable of producing（　）.
A. waste
B. buy
C. use
D. sell

[填空题]We must treat all our people with fairness and dignity, ______(不论其种族、宗教或性别).

[单项选择]Not only (we lost) all our (memory), but we (also) came close to (losing) our lives.
A. we lost
B. memory
C. also
D. losing

[简答题]We all know that we should take better care of ourselves, relax more, and have more fun at work (and elsewhere, as well) , but it’s easy to overlook the opportunities to do just that be cause of the daily work priorities that consume our lives. Here are some ideas for learning to take action in your work life.

[单项选择]We grow all our own fruit and vegetables, （） saves money, of course.
A. which
B. as
C. that
D. what

[单项选择]"We vowed to fight on until all our demands were met" is a ______ sentence.
A. coordinate
B. complex
C. compound
D. simple

[单项选择]Because our work is very busy, so we need to relax at midday.
A. We are very busy,
B. Our work being busy,
C. Our work so very busy,
D. Because our work so very busy,

[单项选择]We have to think very carefully before we take any action, because it’s a very ______ situation we are in.
A. ideal
B. favourable
C. good
D. severe

[单项选择]We all agreed on our basic aims, but when we got down to（）items it became more complicated.
A. special
B. particular
C. peculiar
D. specific

[单项选择]

Cloning shakes us all to our very souls. For humans to consider the cloning of one another forces them all to question the very concepts of right and wrong that make them all human. The cloning of any species, whether they are human or non-human, is wrong. Scientists and ethicists alike have debated the implications of human and non-human cloning extensively since 1997 when scientists at the Roslin Institute in Scotland produced Dolly. No direct conclusions have been drawn, but compelling arguments state that cloning of both human and non-human species results in harmful physical and psychological effects on both groups.
The possible physical damage that could be done if human cloning became a reality is obvious when one looks at the sheer loss of life that occurred before the birth of Dolly. Less than ten percent of the initial transfers survive to be healthy creatures. There were 277 trial implants of nuclei. Nineteen of those 277 were deemed healthy while the others we
A. Cloning may lead to the loss of identity.
B. The cloned human children may have some psychological problems.
C. The psychological effects of cloning may be overlooked.
D. Genetic uniqueness is important.