The two teams are warming up on the playground. They will play each other.A. at B. to C. for D. against D [解析]句意:这两个队在操场上热身.他们将进行对抗比赛.play against对抗比赛,故选D 题目和参考答案——青夏教育精英家教网—

题目内容

The two teams are warming up on the playground. They will play ____ each other.

A. at B. to C. for D. against

D 【解析】句意：这两个队在操场上热身，他们将进行对抗比赛。play against对抗比赛；故选D

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I jumped than Bill in the sports meet last year

A. high B. higher C. highest D. the highest

B 【解析】试题分析：句意：上年的运动会我跳的比比尔高。连词than常用在比较级的句子中，只有B是比较级，故答案选B。

---- I am afraid I have got _______ headache.

---- So please stay in ________ bed for a few more hours.

A. a, the B. the, a C. \, a D. a, \

D 【解析】句意：——恐怕我发烧了。——所以请在床上多睡几个小时。考查冠词辨析题。a和an都是不定冠词，表泛指；a用于辅音音素开头的单词前，an用于元音音素开头的单词前。the是定冠词，表特指。get a headache头疼，stay in bed卧床休息，两个都是固定短语。根据句意和语境，可知选D。

What is the first thing you want to do when you see someone yawn? You want to yawn, too! Yawning iscontagious.

Scientists have found that all people yawn. Babies start to yawn even before they are born. The earliest yawn takes place when a baby is still inside its mother. When young children are about one year old, they start to yawn when they see others yawning. That's why scientists think yawning is contagious.

It’s no secret that yawning is contagious, but why do we yawn? Well, scientists are not really sure.

Some think we yawn because we feel bored. Others believe yawning has something to do with breathing. When there is too much carbon dioxide(CO2) in our bodies, our bodies will tell the brains to breathe deeply. That causes a big yawn.

In 2007, scientists said people yawned to cool down their brains. These scientists found people yawned more often if they were warmer than others.

Scientists are still trying to find out why yawning happens and why it is so contagious. But they are only sure that when one person yawns, immediately everyone else nearby wants to yawn, too.

1.The underlined word "contagious" in Paragraph 1 means__________.

A. helpful to our health B. passing from one person to another

C. hard to understand D. getting into one trouble after another

2.According to the scientists, people start to yawn when they are__________.

A. born B. one year old C. 17 or 19 years old D. inside their mothers

3.Which of the following is NOT RIGHT according to the passage? __________

A. People yawn to catch others' attention. B. People yawn because they are bored.

C. People yawn to cool down their brains. D. People yawn to get rid of carbon dioxide.

4.We can probably read this passage in a__________.

A. story book B. movie poster C. science magazine D. travel guidebook

1.B 2.D 3.A 4.C 【解析】文章讲述了人们打哈欠的事情。 1.根据 when you see someone yawn， You want to yawn, too!可知是传染，传递；故选B 2.根据The earliest yawn takes place when a baby is still inside its mother.故选D ...

I decide to practise harder_____ I will be more confident in front of the class.