男孩，6岁，前胸正中部凹陷，两侧肋骨下缘抬起，诉生后未补钙，以上症状随生长逐渐加重。

第二节 语法填空（共10小题，每小题1分，满分10分）

阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空，并将答案填写在答题卡标号为31-40的相应位置上。

Language learning begins with listening. Some linguists say children are greatly different    31    the amount of listening that they do before they start speaking, and later starters are often long listeners. Most    32    will “obey” spoken instructions some time before they can speak, though the word “obey” is hardly accurate as    33    description of the eager and delighted cooperation usually shown by the children. Before they can speak, many children will also ask questions by gestures and by making questioning noises.

Any attempt    34     (study) the development from the noises babies make to their first spoken words leads to    35     (consider) difficulties. It is agreed that they enjoy making noises, and that during the first few months one or two noises sort themselves as    36    (particular) expressive as delight, pain, friendliness, and so on.    37   since these can’t be said to show the baby’s intention to communicate, they can hardly be regarded as early forms of language. It is agreed, too, that from about three months they play with sounds for enjoyment, and that by six months they are able to add new words to    38     store. This self-imitation(模仿)    39    (contribute) to deliberate imitation of sounds or words spoken to them by other people. The problem then arises as to the point at    40     one can say that these imitations can be considered as speech.

女性，50岁。发现左 * * 包块3个月。检查发现左乳外上象限约3cm×2.5cm大小肿块，表面不光滑，质硬，边界不清楚，动度小，无明显触痛。同侧腋窝触及肿大、质硬的淋巴结。

如确诊为乳腺癌，较理想的治疗方案为（）.

A.乳腺癌根治术

B.乳腺癌根治术加放射治疗

C.乳腺癌根治术加中医治疗

D.乳腺癌根治术加免疫治疗

E.乳腺癌根治术加内分泌治疗

如图所示，平行金属板中带电质点P原处于静止状态，不考虑电流表和电压表对电路的影响，当滑动变阻器R₄的滑片向b端移动时，则

A．电压表读数减小

B．电流表读数减小

C．质点P将向上运动

D．R₃上消耗的功率逐渐增大

主产于印度和埃及( )

A．《神农本草经》
B．《新修本草》
C．《本草纲目》
D．《本草纲目拾遗》
E．《证类本草》

American researchers have developed a technique that may become an important tool in fighting AIDS virus from attacking its target-cells in the body's defense system．When AIDS virus enters the blood，it searches for blood cells called T4 lymphocytes(淋巴细胞)．The virus connects to the outside of T4 lymphocytes．Then it forces its way inside．There it directs the cells' genetic material to produce copies of the AIDS virus．This is how AIDS spreads．

Researchers think they may be able to stop AIDS from connecting to T4 ceils．When AIDS virus finds a T4 cell，it actually connects to a part of the cell called CD4 protein．

Researchers want to fool the virus by putting copies or clones of the CD4 protein into the blood．This way the AIDS virus will connect to cloned protein instead of the real ones．Scientists use genetic engineering methods to make the clones．Normally a CD4 protein remains on the T4 cell at all times；the AIDS virus must go to it．

In a new technique，however，the cloned CD4 protein is not connected to a cell．It floats freely，so a lot more can be put into the blood to keep the AIDS virus away from real CD4 protein on T4 cells．One report says the．AIDS virus connects to cloned protein just as effectively as it connects to real protein．That report was based on tests with blood cells grown in labs．The technique is just now beginning to be tested in animals．If successful，it may be tested in humans within a year．

小题1:The new technique can     .

A．cure AIDS

B．kill the AIDS virus

C．prevent the AIDS virus from spreading

D．produce new anti-AIDS cells小题2:When the AIDS virus enters the blood，it is reproduced by     .

A．itself

B．the blood cells

C．the CD4 protein

D．the genetic material of T4 lymphocytes小题3:The AIDS virus connects to cloned protein instead of the real CD4 protein because    .

A．cloned protein stays On the T4 cells

B．it connects to cloned protein more effectively

C．cloned protein is made by genetic engineering methods

D．cloned protein floats freely，and many more can be put into the blood小题4:Which of the following statements is NOT true?

A．The new technique has been tested in labs．

B．The new technique is being tested in animals．

C．The new technique may be tested in humans．

D．The new technique is now under clinic test．小题5:The best title for this passage is     ．

A．AIDS-a deadly disease

B．A new technique in fighting AIDS

C．The spread of AIDS virus

D．The cloned CD4 protein