单选题Whom dose “he”(last paragraph) refer to ?

单选题Woman: When we lived in Paris I worked part time. But since we moved I just cook and clean. I get tired of doing the same old things day by day.Man: It sounds like you need to get out of the house.Question: What does the man advise the woman to do?

单选题{{B}}Passage Five{{/B}} What produces a waterproof super glue, acts like a vacuum cleaner, and even teaches scientists about gene repair? The humble little shellfish known as the mussel (贻贝)。 Mussels are found worldwide. Some live in the sea. Others inhabit freshwater streams and lakes. When you try to move a mussel from a rock, you will discover what an incredibly firm grip it has- a necessity if the mussel is to resist the sharp grab of a hungry seabird or the pounding waves of the sea. How does it manage to cling so tight? When it choose a place to set up home, it pokes its tongue-shaped foot out of its shell and presses it against a solid surface. Special glands give off a fluid mixture of proteins into a channel that runs the length of the foot. The liquid quickly hardens into a fine, elastic thread about an inch long. Then a tiny pad-like structure at the end of this thread gives off some natural glue-like substance, the mussel lifts its foot, and anchor line number one is complete. These strategically placed threads form a bundle, which ties the mussel to its new home in much the same way that ropes hold down a tent. The whole procedure takes only three or four minutes. Imagine having a very strong glue that is non-toxic and so flexible that it can penetrate the tiniest holes and corners, sticking to any surface, even under water. Shipbuilders would welcome it for repairing vessels without the expense of dry-docking them. Auto-body workers would like a really waterproof paint that keeps the rust out. Surgeons would value a safe glue to join broken bones and to close wounds... The list of possible uses appears endless. However, scientists are not thinking of using the mussels themselves to produce this super glue. It would take some l0.000 shellfish to make just one gram of glue. So collection enough mussels to supply the world's demand for super glue would wipe out the mussel population, many species of which are already endangered. Instead, American researchers have isolated and cloned the genes for five mussel glue proteins, and they are about to mass-produce them in the laboratory. However, the mussel is still one jump ahead. Only the mussel instinctively knows the exact blend of proteins needed for each kind of surface. Molecular biologist Frank Roberto has asked admiringly: "How are you ever going to imitate that?"

单选题So strange were the circumstances of my story that I can Uscarcely/U believe myself to have been a party to them.

单选题Man: Jessica, I met your sister in the party yesterday. She looked different from you.Woman: Not only from the appearance. We have different temperaments. She has a hot temper and likes talking and giving her views on life and arguing with others.Question: What can we know about the woman's temperament?

单选题The author expresses his opinion in the first paragraph that ______.

单选题The US biodefence research is particularly controversial because of the sheer ______ of the effort.

单选题On September 2, 1937, President Roosevelt signed legislation that was to have far-reaching {{U}}consequences{{/U}} for American wildlife.

单选题A frequently Ucited/U example of the endangered species is the panda.

单选题 In 1975 the Congress of the United States passed the Education of All Handicapped Children Act, a {{U}}(1) {{/U}} document in special education that has since {{U}}(2) {{/U}} numerous amendments. A 1990 amendment renamed the law the Individuals with Disabilities Education Act (IDEA). IDEA requires public schools {{U}}(3) {{/U}} a free and appropriate education to all disabled children. The law also requires that all children with disabilities between the ages of 3 and 21 receive support services, such as {{U}}(4) {{/U}} or physical therapy, {{U}}(5) {{/U}} the type or seriousness of their disability. {{U}}(6) {{/U}} the provisions of IDEA, schools must {{U}}(7) {{/U}} all children with disabilities. To do this school officials provide each child with a comprehensive {{U}}(8) {{/U}} conducted by teachers, the parents, and appropriate specialists, such as children with speech difficulties. IDEA also requires schools to give parents the opportunity to assist in the development and {{U}}(9) {{/U}} of their child's education plan. The plan specifies goals for the student's education, methods to achieve those goals, and services to be provided. Each student's education plan is reviewed {{U}}(10) {{/U}}. To the maximum extent appropriate, a child with a disability must be educated with children who do not have disabilities. In addition, IDEA requires that older children with disabilities receive transition services to assist in the change from school to adult activities, {{U}}(11) {{/U}} employment, continuing education, and finding a place to live. IDEA provides federal financial support for schools to develop special education programs. Other federal laws prohibit discrimination {{U}}(12) {{/U}} disability. Section 504 of the Act of 1973 {{U}}(13) {{/U}} discrimination against individuals with disabilities in public schools and any other federally supported programs. The Americans with Disabilities Act of 1990 ensures {{U}}(14) {{/U}} for individuals with disabilities in all {{U}}(15) {{/U}} life, including education, the workplace, transportation, and telecommunications.

单选题Today black children in South Africa are still reluctant to study subjects from which they were effectively barred for so long.

单选题A: Sorry to bother you, but could you tell me the way to the Sunset Road?B: ______

单选题He wanted to stay at home, but at last he agreed, very ______ though, to go to the concert.

单选题A: Why were only three of you present at the meeting? B: ______.

单选题(Thirteen hundred) medical professionals, (all of which) have been trained to treat drug dependency, (attended) the annual convention (sponsored) by a society.

单选题The principal duty of the United Nations is to safeguard the peace of the world.

单选题Mrs. Brown couldn't shake the ______ that these kids were in deep trouble and it was up to her to help them.

单选题The government has called for an independent Uinquiry/U into the incident.