假如你是李华。你校今年11月22日将迎来建校30周年，学校将举行周年庆联欢晚会。...

阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

Scientists are beginning to understand that sitting down for long hours can be very bad for your health. One of the reasons for this is that poor posture (姿势) leads 1.health problems. Here are some suggestions to help improve your posture and your health.

Sitting with poor posture can bring about serious back pain that doesn't go away. Many people believe that they should sit with their backs straight at a 90 degree angle to the floor, 2.scientists have recently discovered that this actually causes more stress on the body. They find that sitting with the back slightly reclined (斜倚) at a 135 degree angle is the 3.(healthy) posture, where the back muscles are relaxed and the spine (脊柱) is at 4.natural resting position.

Many people bend their necks forward to look at a screen or read a book while sitting, 5.develops constant neck pain. The lower neck muscles need to work very hard to support the 6.(weigh) of the head. The bones in the spine can slide forward, 7. (cause) a great deal of neck pain.8. (avoid) this problem, you should try to look at the top part of a computer screen when working at a desk. Your elbows should be at the side and your feet should be flat on the floor.

You should also try to 9.(regular) stop work and do some exercises. Put your hands behind your back and bring your chest forward slowly. Take a deep breath and relax. Finally, you can try to buy a special kind of chair that 10.(make)to improve sitting posture.

    I passed a man on the way home from work one night a few years ago. He was walking staggeringly (蹒跚) along the road. I _______ wondering whether to stop and give him a _______, at least down to a safer part of the road. Then the car behind me overtook me and I lost the _______to stop there as the road was so _______.

I couldn't be sure but he appeared to be quite _______ . A truck turned _______to avoid him at one point he didn't appear to _______.

I pulled into a lay-by (停车带), a little way down the road, waiting for him to reach my car. He'd probably decline my _______of a lift, or smell really bad or…a number of things _______my head while I waited.

Five minutes went by and I sat on. He approached my car. My windows were __________down, and I asked him if he wanted a lift. He __________that he was going to the next town, just out of my way, but not far enough to put me to __________. So in he got.

''Sorry, I'm really drunk. I've been at a funeral (葬礼). I'm Ryan.'' and he gave me his hand. I drove and we talked. He told me he'd just __________his uncle. He called me brother and offered me his cool sunglasses as __________. I refused and said the joy was in the __________.

Three times along the way he told me, ''__________we put out there comes back to us. Something__________will come to you for picking me up.''

I __________ him at the next crossroad. We shook __________and said goodbye to each other. I felt as if I'd been __________somehow. I think I have been.

1.A.sped up B.went off C.slowed down D.turned away

2.A.message B.signal C.note D.1ift

3.A.duty B.courage C.patience D.devotion

4.A.busy B.smooth C.secure D.convenient

5.A.1ost B.injured C.drunk D.defeated

6.A.slowly B.sharply C.slightly D.aimlessly

7.A.care B.argue C.explain D.oppose

8.A.order B.request C.offer D.reason

9.A.took in B.turned out C.brought about D.went through

10.A.rolled B.knocked C.pushed D.dragged

11.A.promised B.announced C.indicated D.assumed

12.A.trouble B.anxiety C.pain D.embarrassment

13.A.hurt B.abandoned C.visited D.buried

14.A.trade B.payment C.response D.property

15.A.changing B.giving C.receiving D.demanding

16.A.Whoever B.Whenever C.Whichever D.Whenever

17.A.strange B.negative C.good D.regretful

18.A.dropped B.passed C.declined D.missed

19.A.shoulders B.arms C.1egs D.hands

20.A.supported B.blessed C.encouraged D.reminded

    If you are thinking about redecorating the home, you are probably searching about interior (室内的) decoration ideas. Redecorating presents a great chance to reflect your personality by displaying your style and interests. It will be easy to redecorate the home if money is not a restriction. 1.Here are some tips on how to do so:

Search some magazines. You can get dozens of home interior decoration ideas from countless magazines and TV programs. Some programs tend to show less costly interior decoration ideas.2.It's a good way of comparing different styles. Here you can make distinction between broad styles, country, contemporary, etc.

Fond of primitive style.If you are fond of primitive or traditional style, warmer colors are the best for the room. These colors go with all kinds of cloth of old style and wooden furniture.3.

Modern style. If you like modern styles, use brighter colors instead of white and off white. Home decoration of these styles includes minimum disorder and a lot of free space and light. Leather furniture matches the room: white or black with contrasting throw cushion (靠垫) per seating place.4.

5. This often occurs anyway, especially if the people give you furniture or you inherit (继承 )the same. If you wish to combine different pieces of furniture from different styles, you need to bridge a gap between them. This Call be done easily with materials like throw pillows, wall hangings and carpets.

A. A white one on a black sofa suits here.

B. There is nothing wrong in mixing two styles.

C. Another effective and affordable option is by surfing the internet.

D. The combinations and possibilities in the first decoration are endless.

E. Autumn colors go well to produce warm, friendly and pleasant atmosphere.

F. Nevertheless, the question for most is how to redecorate the home within limited budget.

G. The walls tend to have one or two pieces of wall art rather than 6 to 10 of the older time.

    Gene therapy (基因治疗) is a revolutionary new technique for treating people with health problems. Up until very recently, the most commonly available methods for treating patients were either through drugs or operations. Gene therapy provides a third option for treatment by transforming or replacing cells with new genetic materials and instructions. Scientists can be very precise in the kinds of changes they make in patients.

Gene therapy works by using a delivery system, such as a virus, to enter a patient's body. Once inside the body, the virus combines with a host cell and delivers the new DNA. The proteins then begin to repair the affected cells. New techniques have focused on removing cells from the patients and transforming them outside the body before reintroducing them to the patients.

The two types of gene therapy are called somatic and germline. Somatic therapy refers to changing or replacing a body cell. In this case, the treatment is restricted to the patient only. This will not affect the patient's future children because the patient's germ (生殖) cells are unaffected. In germline therapy, the patient germ cells are treated, which may affect the patient's future generation.This is highly controversial (有争议的) because it is not clear exactly how this might affect them and further generations. For this reason, many countries have passed laws that prohibit this kind of treatment.

Despite the promise of gene therapy, there are still many barriers that need to be overcome before it comes into widespread use. One of the issues is that the use of viruses to deliver DNA may actually cause unexpected problems in patients if the virus grows and attacks the body. Another problem is the nature of many diseases is very complex and spread throughout multiple genes. The use of gene therapy to change a single gene in the body would probably not be sufficient as a cure. Finally, the costs of gene therapy are high. Some gene therapy procedures may cost over$1 million to undertake and require specialized doctors and equipment.

1.What does the underlined word ''them'' in paragraph 2 refer to?

A.Techniques. B.Cells. C.Patients. D.Proteins.

2.What can we learn about gene therapy?

A.Gene therapy has been put into practice widely.

B.The cells of patients are developed in healthy people.

C.Viruses entering the body can mix with host cells and form new DNA.

D.Both somatic and germline therapy have side effects on later generations.

3.What's the last paragraph mainly about?

A.The disadvantages of gene therapy.

B.The promising future of gene therapy.

C.The high costs of treatment procedures.

D.The issues related to viruses and complex genes.

4.What can be a suitable title for the text?

A.Why Gene Therapy Procedures Are Extremely Expensive

B.Gene Therapy: A Dangerous New After-operation Treatment

C.Gene Therapy: A Contemporary Progressive Treating Method

D.Scientists Are Accurate in Performing the Categories of Surgery

    Jazz guitarist Joel Harrison came of age in 1960s and 70s' Washington, but he never saw it as a place to build a career as an adventurous, progressive musician. Everywhere he's gone, however, he's taken the sounds of the city with him.

''Growing up in that area allowed me access to a lot of different kinds of music,'' says Harrison, 61, who's now based in New York after living in Boston and San Francisco. ''Southern music traditions-old-time music, bluegrass, country as well as jazz and R&B.''

All of those appear to some degree in Free Country, a project Harrison began in 2003 as a means of filtering (渗透) country and bluegrass compositions through a up-to-date jazz sound and sensibility. On his new album, ''Angel Band: Free Country Vol.3, ''Harrison, on guitar and vocals (演唱), and his band take on many traditional bluegrass songs. Each cut is really kind of its own, distinct sound world. Since Harrison released the first two Free Country albums, he has produced 14 other albums. The Free Country releases, though, have been his most successful, and established his reputation.

In particular, Harrison drew inspiration from Danny Gatton, a D.C. guitar hero who similarly combines the local musical currents. Harrison was a self-described adorer of Gatton, going to attend his countless performances.

Harrison is also a composer. His work, rooted in progressive Jazz but exploring multiple types, is often through-composed and highly complex. He received a Guggenheim scholarship in2010 to compose and record an, eight-movement piece. The tunes he plays with Free Country are simpler, based on conventions of folk and pop music — which, for Harrison, is a large part of their appeal.

The music that he's covering timeless, and he aims to find endless currency in its timeless simplicity by maintaining me soul of the compositions and also adding a modern context and a modem language to it.

1.What exposed Harrison to various music?

A.His growth environment.

B.His current place of residence.

C.His family background.

D.Touring the country.

2.What do we know about Joel Harrison?

A.He has released 14 albums in total so far.

B.He showed a new jazz style in Free Country.

C.He earned large profits by releasing Free Country.

D.He was inspired to hold many performances by Gatton.

3.What's Harrison's goal of creating music?

A.To put modern elements into the languages.

B.To develop different styles based on previous jazz.

C.To compose more pieces and release more albums.

D.To seek great popularity in its permanent simplicity.