[题目] If you don’t have enough exercise, you will weight.A. put on B. put offC. put away D. put up 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】 If you don’t have enough exercise, you will _______ weight.

A. put on B. put off

C. put away D. put up

【答案】A

【解析】

试题分析：句意：如果你没有足够的锻炼，你就会增加重量。put on增加，穿上，上演，使运转；put off 推迟，延期；put away放好；put up张贴，挂起。所以选A。

练习册系列答案

A. How often B. How much C. How long D.How far

【题目】

China was once known as the “Bicycle Kingdom”. Now, a young US man, David Wang, living in Beijing is using pieces of bamboo to replace(代替) parts of bicycles.

Two years ago, David opened the Bamboo Bicycle Beijing workshop in Langjia hutong. They cut and shape bamboo into bicycle frames(构架). After connecting the pieces with special glue, they join wheels and other parts together.

After graduating from university, David came to China to continue his study. He has lived in China for more than 6 years and loves the city's ancient hutongs. However, he found people threw old bicycles everywhere in hutongs. “Beijing is becoming a big graveyard(墓地) of bicycles，” David said. He began picking up the givenup bikes and “saving” them, repairing, repainting, and renewing them.

Then one day he found a really old bicycle, which could not be “saved” in usual ways, so he began thinking of better materials to replace the frame. Bamboo came to his mind.

He searched online, and after three months of research and tries, communicating with factories and experts, he made his first bamboo bicycle. “It was amazing! It really works！” he recalled.

The bikes are not for sale—they're to encourage a love of cycling among people who live in Beijing. David hopes bamboo bicycles can create “a little bit more different culture in Beijing”．

【1】David thought Beijing was becoming a big graveyard of bicycles because ．

A. people threw old bicycles everywhere in hutongs

B. people put the old bicycles in the graveyard

C. there were many graveyards for old bicycles

【2】How long did it take David to finish his first bamboo bicycle?

A. About three months.

B. Two years.

C. Six years.

【3】David and his team made bamboo bicycles in order NOT to ．

A. create a little bit more different culture in Beijing

B. encourage a love of cycling among people

C. sell them to get a lot of money

【4】Which is the correct order according to the passage?

①David arrived in Beijing.

②David made his first bamboo bicycle.

③David graduated from university.

④David opened a workshop in Langjia hutong.

⑤David began picking up the givenup bikes and saving them.

A. ①③⑤④② B. ③①⑤②④ C. ③①②⑤④

【题目】Do you want to know how and why a fall leaf changes color? We first have to understand what leaves are and what they do.

Leaves are the world's food factories. Plants take water from the ground through their roots and take CO2 from the air. Plants use sunlight to turn water and CO2 into glucose(葡萄糖), a kind of sugar. Plants use it as food for energy and growing.

A chemical called “chlorophyll” in the leaves gives plants their green color. As summer ends and autumn comes, the days get shorter and shorter, and trees “know” to begin getting ready for winter.

During winter, there is not enough sunlight or water. Trees rest during this time and live on the food they store during the summer. They begin to shut down their foodmaking factories. As the green chlorophyll disappears from the leaves, we begin to see yellow and orange leaves.

The bright reds and purples we see in leaves are made mostly in autumn. In some trees, like maples(枫树), sunlight and the cool nights of autumn turn the glucose in the leaves into a red color. And we can enjoy the beautiful red leaves during autumn.

【1】Which should be in the box?

sunlight＋＋CO2→glucose