题目内容
So far, every possible means ___ to protect the river from being polluted, but pollution
is still very serious.
A. has used B. have used C. has been used D. have been used
C
Have you ever heard of blogs (博客)? If you haven’t, you should have. It’s here, it’s growing and it’s having an influence on our life. Surf the Internet and you’ll find blogs everywhere. A blog, shortened from “weblog”, is a public Internet journal written by one person or a group of people. It is a website in which a person or a group can place news, personal thoughts, text, photos, video or audio files, or links upon which visitors can comment. A blog lets you post on the Internet without having to know web design or be technical. You are given an environment to make dated entries on the topic of your choice which are “published”, so other people can read them.
Authoring a blog, maintaining a blog or adding an article to an existing blog is called “blogging”. Blogging has revolutionized Internet publishing in the last several years because it gives everyone with Internet access the opportunity to become an online writer. Objects, such as “text and photos” in a blog can be called “blog posts”, “posts”, or “entries”. The person who posts these entries is called a “blogger”.
Now, somewhere around the world, a blog is created almost every 6 seconds. Because it’s great potential, Bill Gates views it as important as e-mail, BBS, and MSN. He’s trying to make blogs the important tools for future business communications.
【小题1】A blog is __________ .
| A.a comment | B.an Internet journal | C.a design | D.a link |
| A.talk to others | B.give comments | C.read articles | D.enjoy photos |
| A.A person who posts letters. |
| B.A person who writes articles. |
| C.A person who posts text or photos in a blog. |
| D.A person who is an online publisher. |
| A.Bill Gates will invent some tools for blogs |
| B.blogs will be an important business communication tool in the future |
| C.so far, only a few persons have created blogs |
| D.blogs will replace e-mail, BBS and MSN in the future |
Scientist Says ‘No’ to Human Cloning
“I’ve never met a human worth cloning,” says cloning expert Mark Westhusin from his lab at Texas A&M University. “It’s a stupid endeavor.”
That’s an interesting choice of adjective, coming from a man who has spent millions of dollars trying to clone a 13-year-old dog named Missy. So far, he and his team have not succeeded, though they have cloned two cows and a cat.
They just might succeed in cloning Missy soon — or perhaps not for another five years.
Westhusin's experience with cloning animals leaves him upset by all this talk of human cloning. In three years of work on the Missy project, using hundreds upon hundreds of dog's eggs, the A&M team has produced only a dozen or so embryos carrying Missy's DNA. None have survived the transfer to a surrogate(代孕的)mother. The wastage of eggs and the many spontaneously aborted(流产,发育不全) fetuses(胎)may be acceptable when you're dealing with cats or bulls, he argues, but not with humans. “Cloning is incredibly inefficient, and also dangerous,” he says.
Even so, dog cloning is a commercial opportunity, with a nice research payoff. Ever since Dolly the sheep was cloned in 1997, Westhusin's phone has been ringing with people calling in hopes of duplicating their cats and dogs, cattle and horses. “A lot of people want to clone pets, especially if the price is right,” says Westhusin. Cost is no obstacle for Missy's mysterious billionaire owner; he's put up $3.7 million so far to fund A&M's research.
Contrary to some media reports, Missy is not dead. The owner wants a twin to carry on Missy's fine qualities after she does die. The prototype(原型;雏形)is, by all accounts, athletic, good-natured and supersmart. Missy's master does not expect an exact copy of her. He knows her clone may not have her temperament(气质、性情). In a statement of purpose, Missy's owner and the A&M team say they are “both looking forward to studying the ways that her clones differ from Missy.”
Besides cloning a great dog, the project may contribute insight into the old question of nature vs. nurture. It could also lead to the cloning of special rescue dogs and many endangered animals.
However, Westhusin is cautious about his work. He knows that even if he gets a dog pregnant, the offspring, should they survive, will face the problems shown at birth by other cloned animals: abnormalities like immature lungs and heart and weight problems~ “Why would you ever want to clone humans,” Westhusin asks, “when we're not even close to getting it worked out in animals yet?”
【小题1】By “stupid endeavor”, Westhusin means to say that ________.
| A.human cloning is a foolish undertaking |
| B.animal cloning is absolutely impractical |
| C.human cloning should be done selectively |
| D.animal cloning is not worth the effort at all |
| A.Its success is already in sight. |
| B.It is progressing smoothly. |
| C.It is doomed to utter failure. |
| D.Its outcome remains uncertain. |
| A.study the possibility of cloning humans |
| B.search for ways to modify its temperament |
| C.find out the differences between Missy and its clones |
| D.examine the reproductive system of the dog species |
| A.a bad temper |
| B.defective(有缺陷的、有毛病的)organs |
| C.immune deficiency |
| D.an abnormal shape |
Random ramblings from a guy who is too busy to have a Web site. On the bright side, you won't find any ads, pop-ups, hype, or any attempts to sell you anything at all. Furthermore, you won't find any pages divided into a hundred little boxes. And the text is so large, you don't need an electron microscope to read it. A refreshing break from reality. Anyway, here's what I have so far as I gradually resurrect my poor neglected Web site.
PC Survival Camp
Being new to computers, or even just being a “casual user”, isn’t always fun. It's as though everybody on the planet assumes you already know all the buzzwords, and already possess all the skills necessary to use a computer. Which is a really big assumption, when you consider that nobody was ever born knowing how to use a computer. The links below provide some quick mini-tutorials on all the skills and buzzwords that everyone else seems to assume you already know. Click on any link (underlined text) for a quick mini-lesson. Use the Back button at the bottom of any
page to work your way back to this page.
| TechFear Camp | Jargon Camp | Internet Camp | Windows XP Camp |
| Wrong button! | Hardware | What is the Net? | Desktop |
| Crash the Internet! | Ports | What's Bandwidth? | Start menu |
| Erase everything! | KB, megabytes, etc. | What's Download? | Taskbar |
| Run out of space! | Software | What Web browser? | Quick Launch |
| Email privacy! | Toolbars | Getting around | Notifications |
| Viruses! | | What e-Mail client? | Moving and Sizing |
| Hackers! | | Death to pop-ups | Control Panel |
| | | | More... |
l I'm gradually bringing back some of my old HTML stuff here.
l If you have a question, Ask Alan
【小题1】Who is the passage written for?
| A.Everyone | B.College students. |
| C.Anyone who wants to use a computer. | D.An expert on computers. |
| A.It’s cheap. | B.There are no ads. |
| C.It’s modern. | D.It provides an electron microscope. |
| A.Erase everything! | B.Software. | C.Flash . | D.Taskbar. |
| A.Coolnerds.com | B.PC survival Camp |
| C.Alan | D.HTML Stuff |