[单项选择]Our brains could be hard-wired to be male or female long before we begin to grow testes(丸)or ovaries(卵巢)in the womb. This discovery might explain why some people feel trapped in a body that’s the wrong sex, and could also lead to tests that reveal the true "brain sex" of babies born with ambiguous genitalia(生殖器).
Till now, the orthodoxy among developmental biologists has been that embryos develop ovaries and become female unless a gene called SRY on the Y chromosome is switched on. If this gene is active, it makes testes develop instead. This switch is seen as the key event in determining whether a baby is a girl or a boy. Only after the gonads(性腺) form and flood the body with the appropriate hormones, the theory goes, is the sex of our minds and bodies determined.
But in a study of mice, a team at the University of California, Los Angeles, has now found that males and females show differences in the expression of no fewer than 50 genes well before SRY switches on. "It’s the
A. continue to study the influence of genes on human brain sexuality
B. look for more dominant genes for males as well as for females
C. continue their study about genes on mice
D. show that there are differences in expression of genes of males and females

[单项选择]Our brains could be hard-wired to be male or female long before we begin to grow testes(丸)or ovaries(卵巢)in the womb. This discovery might explain why some people feel trapped in a body that’s the wrong sex, and could also lead to tests that reveal the true "brain sex" of babies born with ambiguous genitalia(生殖器).
Till now, the orthodoxy among developmental biologists has been that embryos develop ovaries and become female unless a gene called SRY on the Y chromosome is switched on. If this gene is active, it makes testes develop instead. This switch is seen as the key event in determining whether a baby is a girl or a boy. Only after the gonads(性腺) form and flood the body with the appropriate hormones, the theory goes, is the sex of our minds and bodies determined.
But in a study of mice, a team at the University of California, Los Angeles, has now found that males and females show differences in the expression of no fewer than 50 genes well before SRY switches on. "It’s the
A. whether we will be male or female is determined by the brain, not the genitalia
B. some people consider themselves to be male but are in fact female physiologically
C. our brain sex is formed long after our testes or ovaries begin to grow
D. some people feel trapped because they have ambiguous genitalia

[填空题]Heart disease occurs earlier in male than in female.

[填空题]若不是意想不到的麻烦,we could have fulfilled our task ahead of time.

[判断题]

The differences between male and female brains are the major causes of the scores between boys and girls.

[单项选择]A. All the wasps.
B. The male wasp.
C. The female wasp.
D. The new offspring.

[单项选择]A. They found that male brains have more connections on one side of the brain while female both.
B. They found that men are more straightforward than women.
C. They found that men are more persistent than women.
D. They found that women are more efficient than men are in problem solving.

[填空题]Our brains have been processing sophisticated information via our senses for millions of years. So why is it we are still {{U}} (36) {{/U}} to lies Why aren’t we better at discovering the deception of others The language of the face is {{U}} (37) {{/U}}. Almost our first sight as new-born baby is our mother’s face smiling at us. Not only are we immediately {{U}} (38) {{/U}} to respond to faces, but right away we can also {{U}} (39) {{/U}} surprise, pleasure and distress. The constant visual dialogue, as parent and child {{U}} (40) {{/U}} expressions back and forth, is {{U}} (41) {{/U}} for the young brain. It is how we build a {{U}} (42) {{/U}} of other minds--we feel happy when we smile, so someone else smiling must be {{U}} (43) {{/U}} the same. {{U}} (44) {{/U}}, says Paul Ekman, a leading researcher in the subject. "Wherever you are, anger, happiness, fear, disgust sadness and surprise look the same." But we make all sorts of false assumptions about faces.