【正文】 ut cell. We may develop technology to allow easier geic testing and fixing problems such as spinal cord injuries, cancer, and many more. Cloning ans for an transplants (移植 ) is one of the major practical reasons that cloning should be allowed. There is always a high demand for ans. Some argue for the cloning of humans to create extra body parts. Others talk of just wanting to clone an an to replace a faulty an. Rejuvenation (恢復(fù)青春 ) is also a key argument for advocates (提倡 ) of cloning. Some scientists believe that injecting cloned healthy heart cells into damaged heart tissue will lead to healing of the heart. By bining the technology for cloning and the technology for growing human stem cells, conditions like Alzheimer39。t want to spend an extra year or two here just because I slacked off as a freshman. So the first thing I39。t afford another bike C. she felt very sad for the lost bike D. she had just bought the bike for her son 8. We can conclude from this story that ____. A. there are good people out there B. offering someone helps is better than stealing from him C. the loss of the bike puts the family into a sad situation D. one can obtain happiness from helping others C Going to college has been such a new experience for me. Everything is different from when I was in high school. One thing I39。voltage transformers in that ________. A． they have a vision from the mountaintop B． they have warm feelings and emotions C． they can serve as concrete(具體的 )examples of noble principles D． they can make people feel stronger and more confident 3 ． Madonna and Michael Jackson are not considered heroes because ___________________. A． they are popular only among certain groups of people B． their performances do not improve their fans morally C． their primary concern is their own financial interests D． they are not clear about the principles they should follow 4． Gandhi and Martin Luther King are typical examples of outstanding leaders who ___________. A． are good at demonstrating their charming characters B． can move the masses with the skill and the charm C． are capable of meeting all challenges and hardships D． can provide an answer to the problems of their people 5． The author concludes that historical changes would ___________________________. A． be delayed without leaders with inspiring personal qualities B． not happen without heroes making the necessary sacrifices C． take place if there were heroes to lead the people D． produce leaders with attractive personalities B I work as an aid on a school bus. There is a guy Tyrell who is almost pletely blind. Tyrell was all smiling for about a week. He39。t _______ to expect a surgeon to be able to make correct judgment in every case. A. reasonable B. natural C. normal D. that I got 12. Opening the book she found in it a whit, plain envelope with her name ______ on it. A. to print B. printed C. printing D. print 13. “ Well, I39。t ________ sweets. A. remove B. resist C. reject D. object 7. The professor spoke very clearly to make his speech easy. A. to understand B. understand C. understanding D. understood. 8. He39。voltage(電壓 )transformers， heroes take the energy of higher powers and step it down so that it can be used by ordinary people. The hero lives a life worthy of who imitate a genuine hero experience life with new depth， enthusiasm， and sure test for would173。s smile repeatedly in the first two paragraphs? A. His smile gave the writer a deep impression. B. The writer liked his happy smile very much. C. It set off how serious the loss of bike caused. D. The smile showed the happy ending of the story. 7. Tyrell39。m not saying that making friends is bad, but I39。t work as hard as in high school. B. Teachers don39。s the bathrooms in zero gravity that are the biggest challenge,” says Claramunt. “ How to provide enough space for more private activities of the guests is not easy.” But they may have solved the issue of how to take a shower in weightlessness — the guests will enter a spa room in which bubbles of water will float around. When guests are not admiring the view from the windows of their pod