The doctor said I must cut [u]      [/u] out. A: discover B: overwork C: overcome

The doctor said I must cut [u]      [/u] out. A: discover B: overwork C: overcome

We have no time to lose. Let's ______on the task before us. A: enter B: impose C: concentrate D: overwork

Rejecting the urging of his physician father to study medicine, Hawking chose to ____ on math and theoretical physics. A: impose B: overwork C: center D: concentrate

下列单词中都含有前缀over-，哪三个单词中的over-含义相同？ A: overwork B: overhead C: overpaid D: oversleep

To stimulate economy, the local government rolled out a new policy and also set up a special coordination committee to _________ the implementation of it. A: overtake B: foresee C: oversee D: overwork

以下哪个选项与材料内容相一致？ 未知类型：{'label': 'questionDesc', 'content': '请选择正确答案。', 'isMemberControl': 0, 'type': 181} 未知类型：{'label': 'source', 'content': '粉笔英语独家模拟卷 四级 信息匹配That’s enough, kids', 'isMemberControl': 0, 'type': 181} A: It’s difficult to create a code of conduct in a world where people are worn out from overwork and poor sleep. B: The author’s son enjoys visiting his aunt because jumping on the sofa is allowed there. C: Nowadays, parents regard their children as objects that they can take pride in, instead of catering to children’s interests. D: Though it was widely used in the past, physical punishment is not acceptable anymore.

High Stress May Damage Memory According to a report issued in May 1998, elderly people who have consistently high blood levels of cortisol don’t score as well on memory tests as their peers with lower levels of the stress hormone. What’s more, high levels of cortisol are also associated with shrinking of the hippocampus, a region of the brain that plays a key role in learning and memory. The finding suggests that even cortisol levels in the normal, “healthy” range can actually accelerate brain aging. The study results “now pride substantial evidence that long-term exposure to adrenal stress hormones may promote hippocampal aging in normal elderly humans,” write Nada Porter and Philip Landfield of the University of Kentucky in Lexington in their editorial. When people feel too worried or nervous or when they overwork, the stress appears. Cortisol is a hormone released in response to stress by the adrenal glands, which sit on top of the kidneys. Over a 5 to 6-year period, Dr. Sonia Lupien and his colleagues measured 24-hour cortisol levels in 51 healthy volunteers, most of whom were in their 70s. Despite wide variation in cortisol levels, the participants could be divided into three subgroups: those whose cortisol progressively increased over time and was currently high (increasing/high); those whose cortisol progressively increased over time and was currently moderate (increasing/moderate); and subjects whose cortisol decreased, but was currently moderate (decreasing/moderate). The researchers tested the volunteers’ memory on six people in the increasing/high category and five people in the decreasing/moderate group. The groups did not differ on tests of immediate memory, but the increasing/high cortisol group had other memory problems compared with those in the decreasing/moderate group. The researchers also found that the total volume of the hippocampus in those in the increasing/high group was 14% lower than those in the decreasing/moderate group, although there were no differences in other brain regions. The results suggest that “… brain again can be accelerated by levels of adrenal hormones that are not generally regarded as pathological and that variation within this normal range is related to variation in the rate of brain aging,” write Porter and Landfield. “This further suggests that chronic stress may accelerate the worsening of hippocampus.”

1.As a small boy, Thomas Edison was slow ________ learning to read and write. [A] on [B] with [C] about [D] in 2.If the young man seeks nothing but pleasure, he will achieve nothing ________. [A]in need [B]in the end [C]in time [D] in order 3._______ is no doubt that overwork and much worry caused his illness. [A] It [B]There [C] This [D] Here 4.Members of society tend to cooperate ________ the goals they share. [A] in reward of [B] in pursuit of [C] in view of [D] in light of 5.Don't worry too much, Jane. Your son ________ home already. Let's go back and check it out. [A] returned [B] will return [C] has returned [D] may have returned 6.It is very important for students to understand and ________ new information. [A] take in [B] give in [C] chip in [D] fail in 7.She attributed her success in her career ________ continuous support from her parents. [A] on [B] with [C]to [D] into 8. You can come up with a _______ to a problem by thinking about it in another way. [A] solution [B] formation [C] transmission [D] persuasion 9. He thinks about nothing but playing video games all day long. I think he's totally ________ to it. [A] obsessed [B] attracted [C] addicted [D] hooked 10.General Xiang Yu was highly _________ for his many conquests. [A] respectful [B] respective [C] respected [D] respecting 11.If you don't ________ cooking today, we can go out to eat at the new restaurant. [A] would like [B] go on with [C] feel like [D] figure out 12.It was when I read his letter ________ I realized he had given me huge help. [A] that [B] then [C] before [D] after 13. Every man has the right to live where he wants to, ________ the color of his skin. [A] in case of [B] prior to [C] regardless of [D] apart from 14.It is _________ for every family to make earthquake emergency plans. [A] sensitive [B] severe [C] secondary [D] sensible 15.With more and more students _______ it, the new club soon expanded and became the largest one on the campus. [A] joined [B] to join [C] joining [D] joint 16.There is no greater importance ________ cultivating independence in children. [A] in [B] than [C] of [D] with 17. Last summer we visited the West Lake, ________ Hangzhou is famous in the world. [A] for which [B] for that [C] in which [D] what 18.You will ___________ for skipping class so frequently. [A] come in handy [B] pay a big price [C] take stock of [D] play a role 19.This blood test will show whether or not you’re ___________ to the disease. [A] accessible [B] peculiar [C] equivalent [D] immune 20.Mothers tend to be too ________ toward their children. They should let them see more of the world. [A] hopeful [B] protective [C] modest [D] encouraging 21. When he is confronted with a ________, he usually makes an arbitrary decision by throwing a coin. A. paradox B. prejudice C. dilemma D. conflict 22. Students and teachers should have ________ attitudes toward each other. A. respectful B. respected C. respective D. respectable 23. If you joke on the local traditions or some respect of the local customs, you will surely ________ the people. A. tease B. irritate C. protect D. attract 24.He was a good public speaker and organizer and ________ with extraordinary energy. A. bribed B. supported C. awarded D. endowed 25. Payment of the community charge is ________, which is why it is more accurately characterized as a tax than a charge. A. optional B. compulsory C. satisfactory D. illicit