题目内容
Everyone knows fire is very useful in our daily life, it is also dangerous.
A.so B.or C.because D.but
We are not sure he will go to see a doctor or not tomorrow.
A.whether B.that C.what D.who
Imagine having an ear made out of an apple. It seems like a crazy idea from a horror movie. But it could happen in the near future.
Canadian biophysicist, Andrew Pelling used an apple to grow a human ear. He thinks fruit and vegetables can be used to cheaply repair human body parts in the future.
Scientists have been trying to grow organs( 器官) in labs to replace our old ones. But it is a hard Job. For example, liver cells( 肝细胞)can grow in a lab, but the cells still need things like blood vessels( 血管) to actually work. These things have to grow inside a scaffold(支架) In the past, scientists have used manmade materials, animal parts and even dead people as scaffolds. But that has proved to be difficult and expensive.
Pelling and his team, however, found the apple to be a cheap and easy to use scaffold.
They first out an apple into the shape of an ear. Then they used a special way to take out the apple’s cells and make it a scaffold. The team then added human cells to the apple and watched it grow
You can implant these scaffolds into the body, and the body will send in cells and a blood supply and actually keep these things alive, “Pelling said during a Ted Talk speech.
The team put the apple scaffold inside a living mouse and the mouse’s cells slowly took over the pieces of apple.
Now Pelling is thinking of other fruit, plants or vegetables to use,
He says that the shape of flower petals could be perfect for repairing skin. And asparagus(芦苇) could fix a broken spine(脊柱).
Now, Pelling and his team are trying hard to put these crazy ideas into reality
1.Pelling’s idea of manmade ear seems crazy because he used ________ as scaffolds.
A.animal parts B.dead people
C.manmade materials D.ordinary apples
2.The underlined word “implant” in Paragraph 7 probably means ________.
A.pick B.put C.produce D.protect
3.Which is the right order of making an ear out of an apple according to the passage
a. Put the apple scaffold inside a mouse.
b. Add human cells to the apple scaffold.
c. Cut an apple into the shape of an ear.
d. Make the apple ear a scaffold.
e. Take out the apple’s cells in a special way.
A.abcde B.bedae C.cedba D.cdaeb
4.From the last three paragraphs, we can infer that Pelling will experiment with other fruit, plants or vegetables ________.
A.to make human ears B.to repair burnt skin
C.to fix a broken spine D.to make human body parts
—What an unusual gift the girl has!
—Yeah. Almost nobody can recite so many ancient poems at such a young age.
A.present B.talent C.skill
How do students eat at school
School lunch is an important meal in the middle of the school day. It gives you energy (能量) for your ________ and mind.
In China, students usually have a lunch break for about fifty minutes. Some students have lunch in the school canteen. They can have vegetables, meat, rice or noodles. Others like buying their lunch outside school or ________ to eat with their family.
________, students in other countries eat differently. Let’s take a look!
US
Most US middle school students have lunch at school cafeterias (餐厅). Their lunchtime is _______--- about thirty minutes. Therefore, a simple lunch like a sandwich is quick and convenient.
Japan
In Japan, middle school students all eat together in their classrooms ______ a cafeteria. The meals are balanced with rice, vegetables, fish and soup. High school students can _________ packed lunches or a bento (便当) to school.
1.A.body B.hand C.book D.bike
2.A.go shopping B.go home C.make a plan D.collect money
3.A.However B.Or C.So D.And
4.A.long B.short C.many D.much
5.A.on the way to B.in the middle of C.on the right D.instead of
6.A.agree B.cook C.bring D.send
The film Avengers:Infinity War is one of _______ I have ever seen.
A.more wonderful films B.the most wonderful film
C.more wonderful film D.the most wonderful films
Which of the following words matches the sound / t ? p / ?
A.tape B.top C.type D.tap
When a typhoon comes, a strong wind ________ blow away flowers pots outside people’s flats.
A.may B.need C.must D.can
— Hi, Jack. Can you ______ me something about your family?
— No problem. There are three people. My father is a teacher and my mother is a nurse.
A.say B.tell C.speak
