- is it from your school to the train station?-Five kilometers.A.How’s B.How oldC.How long D.How far 题目和参考答案——青夏教育精英家教网—

题目内容

—______ is it from your school to the train station?

—Five kilometers.

A.How’s B.How old

C.How long D.How far

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and seventy is hundred.

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We have found plastic in the ocean and in animals. But for the first time, scientists have found plastic in human poop（粪便）,USA Today reported.

The findings came from a study by scientists from Environment Agency Austria. The researchers followed eight healthy volunteers from different parts of the world. The volunteers wrote down what they ate for a week and then provided a stool sample（大便样本）for testing.

Scientists found nine different types of plastic particles（颗粒）in the samples. “The smallest plastic particles are able to enter the bloodstream, the lymphatic system （淋巴系统）,and may even reach the liver（肝脏）”said Philipp Schwabl, who took part in the research.

However, the scientists aren't sure if this plastic is harmful to humans. They're not sure how the plastic got into the volunteers' bodies, either. But most of the volunteers said they drank from plastic bottles and also ate seafood that could include plastic from ocean pollution.

In fact, plastic is everywhere around us. Every year, about 8 million tons of plastic waste goes into the oceans. There, sunlight and waves break the plastic down to small particles. Most of the particles stay in the ocean. Others can spread into the soil and air. Could plastic in the air fall onto food and get into the human body?

According to USA Today, 90 percent of sea salt sold in the world includes plastic. And even some top water has been found to have plastic particles in it.

1.According to USA Today, what have scientists found for the first time?

A.Plastic in the ocean. B.Plastic in animals.

C.Plastic in human poop. D.Plastic in the soil.

2.The researchers________according to the second paragraph.

A.followed eight healthy volunteers. B.are from Environment Agency Australia

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3.Paragraph 3 is written to tell us that________

A.plastic particles can be a few different sizes B.plastic particles can reach many parts of our bodies

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4.What can we infer （推断） from the study?

A.Plastic does no harm to our bodies.

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Welcome to our school lab(实验室).I’m very happy to introduce(介绍) our school’s lab to you.Before doing any experiments(实验), there are a few safety rules that we must remember.

1.Always remember to be careful in the lab.

2.Don’t eat or drink in the lab.

3.Don’t talk loudly.

4.Don’t run or play here.

5.Don’t disturb(打扰) others when they do experiments.

6.Don’t take things into the lab to do experiments until the teacher agrees.

7.Follow the teachers’ instructions(指令) to do experiments.

8.Ask the teacher for help if you have any questions.

9.Don’t touch(碰) anything until the teacher asks you to do so.

10Need to put all the things back after you finish the experiments.

11.Close all the windows and lock the doors before you leave.

These rules in our school lab are very important to our safety.I hope you understand them and follow the rules.

1.The rules are for 　　　　.

A.teachers B.parents C.students D.doctors

2.First of all, you must always remember to 　　　　in the lab.

A.ask questions B.be careful

C.touch everything D.talk loudly

3.We 　　　　when they are doing experiments.

A.ask questions B.put the things back

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4.The rules in the lab are important to 　　　　.

A.our school B.our class C.our study D.our safety

5.Which of the following is NOT true?

A.We can’t play or eat in the lab.

B.We can take the things we like to the lab.

C.We can’t touch anything until the teacher asks us to do so.

D.Before we leave, we must close the windows and lock the doors.

Mr. Smith turned down my invitation because he had an important meeting to________that day.

A.visit B.show C.attend D.check

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