Unit 1 Stay Healthy Lesson 2 A Visit to the Dentist同步课时练（wrd版，含解析）

Unit 1 Stay Healthy Lesson 2 A Visit to the Dentist
一、单选题
1.Mr. Black was afraid to _____ the tree, for he was afraid of _____ off the tree.
A. climbing; falling B. climb; fall C. climbing; fall D. climb; falling
2.—I offered Sandy a helping hand. However, she _______ it.
—Maybe she can manage herself.
A. received B. returned C. refused D. rewarded
3.Mary can't leave her little son at home. She has no choice but _____ him with her.
A. take B. took C. taking D. to take
4.Zhang Lan usually looks after her little brother at home when her mother is away. (选出与画线部分意思相近或相同的一项)
A. looks up B. looks out C. looks over D. takes care of
5.Jack has learned more about teamwork(团队合作) _______ he joined the soccer team.
A.until B.since C.while D.thought
6.—Oh, my God! We have missed the last bus. What shall we do
—I'm afraid that we have no ______ but to take a taxi.
A. idea B. decision C. reason D. choice
7.The machine didn’t work well, but the workers didn’t find what _________.
A.the matter is with it
B.is the matter with it
C.the matter was with it
D.was the matter with it
8.—_________ do you write to your parents
—Twice a month.
A.How long B.How often C.How soon D.How far
9.This book makes me _________ my hometown.
A.think of B.thinking of C.to think of D.thinks of
10.There are many__________ in the forest.We must be careful.
A.wolf B.wolfs C.wolvs D.wolves
二、单词填空
11.One of my teeth is rotten, so I have to go to the_____ (牙医).
12.David likes eating candies. Now he has a _____ (牙痛).
13.He _____ (拒绝) to help his classmate cheat in the exam yesterday.
14.Three _____ (德国人) came to visit our school yesterday.
15._____ (幸运地), he wasn't hurt in the accident.
三、阅读理解
Are you afraid of going to the dentist If so, you're not alone.
These fears could just be in our heads, however. According to a recent survey by Martin Tickle, a professor at Manchester University in the UK, the pain isn't felt most of the time in dental surgeries (牙科手术). In fact, among the 451 interviewed patients, 75% reported no pain at all during their visits, including situations when they had their teeth pulled out.
Could it be the sound of the drill (钻头) then
"I found that the sound of drilling can evoke deep worry in dental patients. Actually they don't have any pain," Hiroyuki Karibe, a scientist at Nippon Dental University in Tokyo, told the Guardian.
To find the reason why a drill might bring on a racing heart, Karibe divided the volunteers into low-fear and high-fear groups based on how much they feared a trip to the dentist. Volunteers were played the sound of a drill while their brain activities were watched by a machine.
What Karibe found in the low-fear group was increased activity in the areas of the brain relative to auditory processing (听觉处理), which means, for these people, the sound of dental drills is no different from other sounds.
In the high-fear group, however, the brain area that was activated (激活) was different. It was the area that carries out a number of duties, including learning, feelings and, most importantly, memory. This means that these volunteers not only heard the sound, but they remembered it — they made connections between the sound of a drill and the worry it produced in the past, causing their worry to return.
Understanding how brains reply to the sounds of dentists' drills could help scientists find ways to make patients more relaxed, according to Karibe, because patients who worry about going to the dentist might keep putting off their visits. But the best way is to keep your teeth healthy.
1. How does the writer explain that the pain isn't felt most of the time in dental surgeries
A. By showing facts with numbers. B. By asking questions one by one.
C. By giving examples group by group. D. By comparing results of patients.
2. According to the fourth paragraph, what does the word "evoke" mean in Chinese
A. 减轻 B. 引起 C. 显示 D. 阻止
3. How did the sound of drilling produce different results to the volunteers in the study
A. It produced some worry in the volunteers in the low-fear group.
B. For the low-fear group, it activated the brain area dealing with learning, feelings and memory.
C. For the high-fear group, it caused more activities in the brain area relative to auditory processing.
D. It made people in the high-fear group remember their past uncomfortable memories.
4. What is the last paragraph mainly about
A. How the study might be useful. B. Some new ways to treat teeth.
C. The proper way to treat dental patients. D. The importance of keeping our teeth healthy.
5. What's the purpose of the passage
A. To show us different areas of fear in brains.
B. To introduce us a recent survey by a scientist.
C. To help us have less fear of a trip to the dentist.
D. To make it clear that the sound of drilling is not terrible.
答案以及解析
一、单选题
1.答案：D
解析：句意:布莱克先生不敢爬树,因为他害怕从树上掉下来。be afraid to do sth.意为“不敢做某事” ;be afraid of doing sth.意为“害怕做某事”。故选D。
2.答案：C
解析：句意:—我向桑迪伸出援手。但是,她拒绝了。—或许她能够自己解决。receive收到;return归还;refuse拒绝;reward奖励,奖赏。however表示转折,故选C。
3.答案：D
解析：句意:玛丽不能把她的小儿子留在家里,她别无选择,只能带着他。have no choice but to do为固定用法,意为"别无选择,只能做……"。故选D。
4.答案：D
解析：句意：当张兰的妈妈不在家时，她通常在家照顾她的弟弟。look after = take care of"照顾"。look up"查（字典）"；look out"当心"；look over"检查"。
5.答案：B
解析：句意:自从杰克加入足球队以来,他对团队合作有了更多的了解。考查从属连词辨析。until直到;since自从;while当……时候;though尽管,根据主句时态是现在完成时,从句时态是一般过去时,以及语境可知,应该是since引导的时间状语从句,故选B。
6.答案：D
解析：本题考查名词词义理解。句意：—哦，我的天哪！我们错过了最后一班公共汽车。我们要做什么呢？—除了乘坐出租车，恐怕我们没有选择了。所缺的词是 choice。
7.答案：D
8.答案：B
9.答案：A
10.答案：D
二、单词填空
11.答案：dentist
12.答案：toothache
解析：句意:David喜欢吃糖果。现在他牙痛。
13.答案：refused
解析：句意:昨天他拒绝帮他的同学在考试中作弊。refuse to do sth.是固定用法,意为“拒绝做某事”。由yesterday可知,应用一般过去时。
14.答案：Germans
解析：句意:昨天三名德国人来参观了我们学校。German“德国人”为可数名词,且由空前的Three可知,此处用其复数形式 Germans。
15.答案：Fortunately
三、阅读理解
答案：1-5 ABDAB
解析：1.细节理解题。根据第二段中的"the pain isn't felt most of the time in dental surgeries(牙科手术).In fact, among the 451 interviewed patients, 75% reported no pain at all"可知,作者通过列举数据解释了那种现象,故答案为A。
2.词义猜测题。画线的词是evoke,它的宾语是deep worry,根据上下文的描述可推断,钻头的声音能“引起”内心深处的焦虑,故答案为B。
3.细节理解题。根据倒数第二段中的"In the high-fear groups"和之后的"This means that these volunteers not only heard the sound, but they remembered it — they made connections between the sound of a drill and the worry it produced in the past, causing their worry to return"可知答案为D。
4.段落大意题。最后一段讲的是“这项研究会发挥怎样的作用”, 故答案为A。
5.写作意图题。本文从第四段开始都是在介绍“钻头的声音对看牙医的病人的影响”这一调查,故答案为B。
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