题目内容

【题目】It happened one spring morning. I woke up and went downstairs. My mum asked me if I wanted some orange juice.

“Yes, thanks,” I replied, but my voice had changed! It sounded very deep. I was quite ______, and so was the dog! But my mum just smiled and said, “Oh, that’s just your voice breaking.”

Breaking? That did not sound good! So at school that day, I asked my biology teacher what was happening.

“Don’t worry. It’s ______ common!” she said. “Sound is made by the mouth as the air is ______ out through the voice box, which is in the neck. As you grow older, the voice box grows larger and thicker. When you are a teenager, there can be a ______.”

“But my sister is older than me, and her voice is still the same,” I said, a little ______.

“The change is bigger in boys, so you notice it more. Girls’ voices only change a little, so it is hard to tell the ______.”

Now I like my new voice. But the dog still is not sure!

1A. excited B. embarrassed C. surprised D. satisfied

2A. especially B. probably C. hardly D. completely

3A. pushed B. turned C. taken D. picked

4A. common mistake B. sudden change C. similar experience D. slow process

5A. angry B. confused C. calm D. frightened

6A. truth B. reason C. secret D. difference

【答案】

1C

2D

3A

4B

5B

6D

【解析】本文介绍了作者发现自己的声音变化了,去问生物老师原因。他的老师告诉他,在青春期的男生声音会发生变化。

1B

考查形容词及语境的理解。A. excited 兴奋的;B. embarrassed 尴尬的;C. surprised 惊讶的; D. satisfied满意的;句意:我非常尴尬。根据It sounded very deep. That did not sound good!可知我的声音变了,听起来非常不好听,因此我感到难为情,故选B。

2A

考查副词及语境的理解。A. especially 尤其,特别; B. probably可能; C. hardly 几乎不; D. completely完全地;句意:这是特别普遍的。根据Don’t worry.可知不用担心,因此这是特别普遍的。故选A。

3A

考查动词及语境的理解。A. pushed推,挤; B. turned 转动; C. taken 拿走;D. picked捡;句意:声音是由嘴巴发出的,因为空气是通过喉部的声音盒挤出来的。push out挤出;turn out结果是,take out拿出;pick out挑选出。结合句意声音从喉部的声音盒被挤出来的,故选A。

4B

考查名词短语及语境的理解。A. common mistake 共同的错误; B. sudden change 突然的变化; C. similar experience 相似的经历;D. slow process缓慢的过程。句意:当你是一个青少年时,可能有一个突然的变化。根据As you grow older, the voice box grows larger and thicker.可知我的声音变化了,故选B。

5B

考查形容词及语境的理解。A. angry生气的; B. confused 困惑的; C. calm 冷静的; D. frightened害怕的;句意:我有点困惑地说:“但是我的姐姐比我的年龄更大,她的声音仍然一样。”结合前后文可知“我”的声音变了,但是“我”姐姐的声音没有变,所以我不明白为什么,因此感到困惑,故选B。

6D

考查名词及语境的理解。A. truth 真理; B. reason 原因; C. secret 秘密; D. difference差异;句意:女孩子的声音指变化很小,所以很难区分差别。根据Girlsvoices only change a little可知女孩的声音变化不大,因此很难看到差别,故选D。

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【题目】Animals can move from place to place, but plants cannot. When an animal is under attack, it can run away or fight back. Plants certainly cannot run away, and they have no teeth or claws. But plants can still protect themselves in both physical and chemical ways.

Some plants have their own ways to keep animals away. For example, the leaves of the hollies(冬青树) havesharp spines () that discourage grass-eating animals. Holly leaves on lower branches have more prickles thanleaves on upper branches. This is because the lower leaves are easier for most animals to reach.

Some plants, such as the oak trees(橡树), have thick and hard leaves that are difficult for animals to eat. Some grasses may contain a sandy material,so eating such grasses wears down the animal's teeth

Many plants also have the chemical defense. Some plants produce chemicals that taste bitter or cause an unpleasant reaction. Some plants may protect themselves by increasing the production of these chemicals. When a worm(毛虫) bites a tobacco leaf, the leaf produces a chemical smell.

Many plants depend on both physical and chemical defense. A certain plant in China, for instance, has prickly (多刺的) leaves, and each prickle contains poisonous water(毒液).Only one experience with this kind of plant will teach an animal to stay away from it in the future.

1What can a plant do when it is under attack?

A. It can protect itself

B. It can run away.

C. It can fight back.

D. It must die.

2Why do the leaves of the hollies have sharp prickles according to the passage?

A. Because they are lower.

B. Because they are beautiful to watch.

C. Because they stop people from picking..

D. Because they make grass-eating animals stay away.

3How does an oak tree protect itself?

A. It has leaves with a delicious material.

B. It has leaves with sharp prickles.

C. It has thick and hard leaves.

D. Its leaves taste bitter.

4What does the underlined word“sandy” mean in Chinese?

A. 含盐的 B. 含沙的 C. 坏掉的 D. 腐烂的

5Which of the following is TRUE according to the passage?

A. The hollies have thick and hard leaves.

B. The oak trees have leaves with poisonous water

C. A plant has only one kind of way to protect itself, physical one or chemical one.

D. A tobacco leaf produces a chemical smell when a worm bites it.

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