Hollywood is located in the northwestern downtown in（), California.

Section B Directions: Read the following article about Silicon Valley. Are sentences 26-35 “True” or “False”? If there is not enough information to answer “True” or “False”, choose “Not Given”. Silicon Valley – America’s High Tech Centre Silicon Valley is located in the southern part of the San Francisco Bay area. It originally got its name from the large number of companies that produced silicon chips. Today it is a general name for the high-tech industry of Northern California. The beginning of Silicon Valley goes back to the early 20th century when the United States military companies started experimenting in the fields of radio, communications and electronics. The area also grew because Stanford and other universities and colleges produced a number of students who were interested in technology. One of the first companies that started in Silicon Valley was Hewlett Packard. It was founded by two graduates of Stanford University in 1939. Today HP is the world’s largest technology company and operates in almost all countries in the world. After World War II an industrial park was built around Stanford University. Companies rented offices from the university and employed students as engineers and scientists. In the 1950s the silicon transistor was developed and many companies started moving into the region. In the 1970s Silicon Valley became a well-known term in the United States because of the computer and software firms that were founded in the area. About a hundred new companies were established every year. Such growth was possible because people could found a company, get money and rent office space in only a few weeks. Among the well-known companies in the region are search engines Google and Yahoo!, chip producer Intel, computer and software manufacturers Apple and Adobe. By 1992 Silicon Valley accounted for over 250,000 jobs and over 40% of California’s exports. Companies began calling in specialists from China and India because more and more high-tech scientists and engineers were needed. When the Internet boom began in the 1990s a number of new so-called dot.com enterprises sprang up, including the online auction house eBay and others. When the boom collapsed at the beginning of the new millennium, thousands of high tech workers lost their jobs and couldn’t afford the high housing prices that the area produced. But even after the global financial crisis of 2008 Silicon Valley remains one of the top research and high-tech centers in the world. 26. Silicon Valley was named after silicon chips produced by many local companies.

Many people feel that human beings are responsible for the disappearance of some other animal species. While we may have hastened the disappearance of some, abundant evidence suggests mankind has had little impact. Biologists point out that 50 species can be expected to disappear in the twentieth century but also remind us that about 50 species can be expected in the nineteenth century, and 50 species in each of the centuries before that. Dr. T. H. Jukes at the University of California has pointed out that about 100 million animal species have become extinct since life began on Earth about 3 billion years ago. Thus, animals come and animals go as a natural consequence of something Mr. Darwin discovered. The human race is a recent newcomer to the scene, so we've had nothing whatsoever to do with the disappearance of millions of species.

In fact, when it comes right down to it, we're a miserable failure at genocide(种族灭绝 ). In spite of an all-out centuries-old war on rats, we haven't made a dent in their numbers, much less extinguished a single species. And in spite of all our high technology we haven't been successful in eliminating a single undesirable insect species!

A friend of mine owns most of the Douglas DC-7 aircrafts left in the world. They make excellent spray planes because they can carry a lot of insecticide and fly for a very long time over great distances. Last year, his company sprayed most of the western Sahara and the Sahel regions of Africa to hold down the locusts and grasshoppers. This year, the environmentalists put pressure on the UN to stop it because dieldrin and malathion might cause an increase in the cancer risk of people in the western Sahara and the Sahel. As a result, the hoppers and locusts are back by the zillions and the crops are failing. But the people of West Africa certainly aren't going to worry about dying of cancer; they are dying of starvation instead.

I've come to the conclusion that the people who are trying to save the world are probably quite sincere about it but they don't know much about science and certainly nothing about systems engineering.

According to the author, which of the following evidence proves that human beings aren't responsible for the disappearance of some other animal species?

A．Human beings have hastened the disappearance of some.

B．There was mass extinction long before humanity's time on Earth.

C．Human beings'activities have had great impact on the earth.

D．Many species have extinct since the human race came into being.

I Fill in each blank with the proper word according to the initial and the definition of the word. WANTED: Young skinny, w______ fellows not over eighteen. (--thin but strong) The Pony Express, nevertheless, has become s_________ with the Old West. (--having the same, or nearly the same, meaning) By the 1840s the influx of p_____ to the Northwest, and the flood of prospectors to California after 1848 had created an increasing demand for mail delivery to and from the East. (--the first people to go to a particular area in order to live and work there) Later this route was ultimately j________ by growing North-South tension. (--cause sth. to be harmed, lost or destroyed; put in danger) They switched m______ every 10-12 miles. (--a horse that you ride on) This relay system allowed mail to criss-cross the f______ in record time. (--the edge of land where people live and have built towns, beyond which the country is wild and unknown, especially in the western US in the 19th century) It was just a group of c_______ riders who had proven their loyalty again and again. (--willing to work hard and give your time and energy to sth) What caused the d______ of the Pony Express? (--the end or failure of an institution, an idea, a company, etc.) Despite the failure, the founders’ ability to assemble and operate this remarkable service under especially challenging circumstances was a tribute to their courage and i_______. (--the ability to invent things or solve problems in clever new ways) In the game, a Pony Express rider controlled by the game player has to avoid obstacles and pick up letters in search of the e______ 100 percent rating. (--difficult to find, define, or achieve)

If you are a fan of science fiction, you've no doubt encountered the term nanotechnology, Yet over the past year also, a series of breakthroughs have transformed nanotech from sci-fi fantasy into a real-world. Applied science, and in the process, inspired huge investments by business, academia, and government. In industries as diverse as health care, computers, chemicals, and aerospace, nanotech is overhauling production techniques, resulting in new and improved products, some of which may already be in your home or workplace.

The inspiration for nanotech goes back to a 1959 speech by the late physicist Richard Feynman, then a professor at the California Institute of Technology, titled "There's Plenty of Room at the Bottom." Four decades later, Chad Mirkin, a Chemistry professor at Northwestern University's ＄34 million nanotech center, used a nanoscale device to etch most of Feynman's speech onto a surface the size of about 10 tobacco smoke particles.

What accounts for the sudden acceleration of nanotechnology? A key breakthrough came in 1990, when researchers at IBM's Almaden Research Center succeeded in rearranging individual atoms at will. Using a device known as a scanning probe microscope, the team slowly moved 35 atoms to spell the three-letter IBM logo, thus proving Feynman fight. The entire Logo was less than three nanometers.

Soon, scientists were not only manipulating individual atoms but "spray painting" with them as well. Using a tool known as a molecular beam epitaxy, scientists have learned to create ultra fine films of specialized crystals, built up one molecular layer at a time. This is the technology used today to build read-head components for computer hard drives.

The next stage in the development of nanotechnology borrows a page from nature. Building a super-computer no bigger than a speck of dust might seem an impossible task, until one realizes that evolution solved such problems more than a billion years ago. Living ceils contain all sorts of nanoscale motors made of proteins that perform. myriad mechanical and chemical functions, from muscle contraction to photosynthesis. In some instances, such motors may be re-engineered, or imitated, to produce products and processes useful to humans.

How are these biologically inspired machines constructed? Often, they construct themselves, manifesting a phenomenon of nature known as self assembly. The macromolecules of such biological machines have exactly the right shape and chemical binding preferences to ensure that when they combine they will snap together in predesigned ways. For example, the two strands that make up DNA's double helix match each other exactly, which means that if they are separated in a complex chemical mixture, they are still able to find each other easily.

It can be inferred that Richard Feynman has been ______ now.

A．dead

B．decent

C．prominent

D．popular