题目内容
____________ it will please them is not easy to say.
As if there weren’t enough of them in the world already, scientists have succeeded in cloning flies. The alike fruit flies are the first insects ever cloned, says the Canadian team that created them. The question everyone asks is why anyone would want to clone flies in the first place. She hopes that the insects , which are very easy to experiment with , will help to adjust the cloning process in other animals and even in humans, where the technique is being researched to aid production of therapeutic (治疗的) stem cells.
In cloning, the DNA-containing nucleus of an adult cell is injected into an egg whose own nucleus(细胞核) has been removed. At the moment, the majority of cloned mice, sheep and other animals die before birth. It is thought this is because the adult DNA is not properly ‘reprogrammed’.
Using flies, researchers might discover genes that are important for this reprogramming, and that have matches in other animals. That is because it is relatively easy in flies to knock out the function of a single gene and then attempt cloning with these cells, which will test whether that gene is important. If such genes are confirmed, then in theory cloned mammalian embryos(晶胚) might be grown in selected solutions that change the activity of those genes to improve the technique’s success rate. Although some groups have attempted to clone insects before, Lloyd says this is the first time it has been successful. The team used a slight difference on the standard cloning process: they transferred nuclei taken from embryos rather than fully-grown adult cells. They sucked several nuclei (pl)out of developing fly embryos, and injected them into a fertilized(已受精的) fly egg. From over 800 early attempts, they cloned five adult insects, the group reports in the journal Genetics.
【小题1】The best title of this passage probably is _______.
| A．The importance of clone |
| B．First insects are cloned |
| C．The disagreement in clone |
| D．The advantages of clone |
| A．there are fewer and fewer flies in the world |
| B．flies are easy to find and cheap to use |
| C．they can gain some experience before cloning other animals |
| D．it is safe to clone flies |
| A．the difference of other animals’ genes |
| B．the improper technique of clone |
| C．the complex of other animals |
| D．the improper rearrange of the adult gene |
| A．the clone of insects before used grown-up cells |
| B．the clone of insects were never experimented before |
| C．this time scientists cloned flies successfully and easily |
| D．based on this success, other animals will be cloned in large quantities. |
As if there weren’t enough of them in the world already, scientists have succeeded in cloning flies. The alike fruit flies are the first insects ever cloned, says the Canadian team that created them. The question everyone asks is why anyone would want to clone flies in the first place. She hopes that the insects , which are very easy to experiment with , will help to adjust the cloning process in other animals and even in humans, where the technique is being researched to aid production of therapeutic (治疗的) stem cells.
In cloning, the DNA-containing nucleus of an adult cell is injected into an egg whose own nucleus(细胞核) has been removed. At the moment, the majority of cloned mice, sheep and other animals die before birth. It is thought this is because the adult DNA is not properly ‘reprogrammed’.
Using flies, researchers might discover genes that are important for this reprogramming, and that have matches in other animals. That is because it is relatively easy in flies to knock out the function of a single gene and then attempt cloning with these cells, which will test whether that gene is important. If such genes are confirmed, then in theory cloned mammalian embryos(晶胚) might be grown in selected solutions that change the activity of those genes to improve the technique’s success rate. Although some groups have attempted to clone insects before, Lloyd says this is the first time it has been successful. The team used a slight difference on the standard cloning process: they transferred nuclei taken from embryos rather than fully-grown adult cells. They sucked several nuclei (pl)out of developing fly embryos, and injected them into a fertilized(已受精的) fly egg. From over 800 early attempts, they cloned five adult insects, the group reports in the journal Genetics.
【小题1】The best title of this passage probably is _______.
| A．The importance of clone |
| B．First insects are cloned |
| C．The disagreement in clone |
| D．The advantages of clone |
| A．there are fewer and fewer flies in the world |
| B．flies are easy to find and cheap to use |
| C．they can gain some experience before cloning other animals |
| D．it is safe to clone flies |
| A．the difference of other animals’ genes |
| B．the improper technique of clone |
| C．the complex of other animals |
| D．the improper rearrange of the adult gene |
| A．the clone of insects before used grown-up cells |
| B．the clone of insects were never experimented before |
| C．this time scientists cloned flies successfully and easily |
| D．based on this success, other animals will be cloned in large quantities. |
Below is adapted from an English dictionary
|
figure/fīg ə / noun, verb ●noun 1. [C, often pl.] a number representing particular amount, especially one given in official information: the trade /sales figures 2. [C] a symbol rather than a word representing one of the numbers between 0 and 9: a six-figure salary 3. [pl] (informal) the area of mathematics that deals with adding, multiplying, etc 4. a person of the type mentioned: Gandhi was both a political and a religious figure in Indian history. 5. the shape of a person seen from a distance or not clearly 6. a person or an animal as shown in art or a story: a wall with five carved figures in it 7. [C] the human shape, considered from the point of view of being attractively thin: doing exercise to improve one’s figure 8. [C] a pattern or series of movements performed on ice: figure-skating [IDM] be/become a figure of fun: be/become sb. that others laugh at cut a…figure: (of a person) to have a particular appearance He cut a striking figure in his dinner jacket. put a figure on sth.: to say the exact price or number of sth. |
a fine figure of man/woman: a tall, strong-looking and well-shaped person figure of speech: a word or phrase used in a different way from its usual meanings in order to create a particular mental image or effect figurehead: someone who is the head or chief in name only (with no real power or authority) ●verb 1. to think or decide that sth. will happen or is true: I figured that if I took the night train, I could be in Scotland by morning. 2. to be part of a process, situation, etc. especially an important part: My opinion of the matter didn’t seem to figure at all. 3. to calculate an amount or the cost of sth.: We figured that attendance at 150,000. [PHRV] 1. figure in: to include (in a sum): Have you figured in the cost of hotel? 2. figure on: to plan on; to expect sth. to happen: I haven’t figured on his getting home too late. 3. figure out: to work out; understand by thinking: Have you figured out how much the trip will cost? [IDM] It/That figures! (informal): That seems reasonable, logical and what I expect. |
1. I didn’t really mean my partner is a snake; it was just a ______.
A. figure of eight B. figure head C. figure of speech D. a fine figure
2.—She was coming late again.
—______! That’s typical of her.
A. It figures her out B. It figures C. It cuts a poor figure D. She is a figure of fun
3.What does “watch my figure” in the sentence “Don’t tempt me with chocolate; I am watching my figure.” mean?
A. add the numbers B. have sports C. try not to get fat D. watch games
4.No one can figure out the reasons for the Poland president plane crash in 2010. Here figure out means:_________
A. watch out B. work out C. understand well D. break out
5.—Promise you don’t wear this kind of clothes? People will play a joke on you.
—I don’t care whether I am________. I just want to keep warm.
A. a figure of fun B. a healthy figure C. a figure head D. a bad figure