资源简介

译林版九年级上册练习
综合填空/语法填空/短文填空
A
People spend billions of dollars trying ____1____(look) panies make ___2_____(thousand) of creams and pills for our skin to look younger. Scientists _____3____(try)for decades to slow down the ageing process. Now, scientists made a breakthrough. They have found a method to "time jump" cells in our skin. The scientists are from a research institute in the UK. They say they can turn back the ageing clock in cells by 30 years. This could make our skin look younger. The scientists say their work is still at____4____early stage, but it could help people look younger in the future.
The scientists' new technique could change medicine and ____5____(healthy). Researcher Dr Diljeet Gill said: "We've only tested this technique in skin cells. We're ____6____(excite) to see if we can use it across other cell types." It could ____7____(use) to help other parts of the body. It could also be used to treat skin ____8___(problem), such as burns and acne. The new technique could also help to heal cuts____9____(quick). Another researcher said: "____10____ you cut yourself, it'll take quicker to heal the wound." The scientists said their work might help us look younger. It could actually reverse the ageing process.
B
Scientists have discovered what could be the world's ____1____(small) reptile(爬行动物). It is a chameleon (变色蜥蜴)and is the size of a sunflower seed. Chameleons are usually 35-40cm long. Scientists found two of the tiny lizards in the mountains in ___2____(north) Madagascar(马达加斯加). They are just 22mm long. The ____3____(long) of the male's body is 13.5mm. At first, the scientists_____4____(think) the reptiles were juveniles, but later found they were fully-grown adults. The scientists called the lizards "nano-chameleons". The scientists tried to find more of them, but "despite great effort" could not find any ___5____(many).
Madagascar is home to two ___6____(three)of the world's chameleons. Scientists say they may be from there. However, the chameleon's survival is threatened by deforestation. One scientist said the nano-chameleons are lucky____7____(survive). He said: "Their habitat has unfortunately been subject to deforestation, but the area was placed under protection recently, so the species will survive." Nearly all of Madagascar's eastern rainforest could _____8___(disappear) by 2070 if deforestation and climate change _____9____(not slow) down. This would put many of the island's unique species ____10____danger.
C
The on-off talks between Microsoft and the parent company of TikTok are back on again. Microsoft ____1____(be) interested in buying part of TikTok for many months. The tech giant has been in talks with the parent company ByteDance Ltd. ____2____(discuss) between the two companies came to a halt last week when US President Donald Trump suggested that he might ban TikTok from the USA. He was worried that the ____3____(person) details of over 100 million ____4____(American) could get into the wrong hands. President Trump _____5____(change) his mind at the weekend after the CEO of Microsoft phoned him. Microsoft said it "would ensure that all private data of TikTok's American users is transferred to and remains in the United States."
TikTok is the latest social media platform to become hugely popular around the globe. Users upload very short videos of ____6____(they) lip-syncing to well-known songs, dancing, making funny faces or doing other _____7___(humour) things. TikTok's owner ByteDance is a Beijing-based Internet company founded in 2012 by Chinese entrepreneur Zhang Yiming. It now _____8____(have) over 800 million users worldwide. Microsoft is offering ByteDance $50 billion for the operations in the US, Canada, Australia and New Zealand. ____9____, the business website Bloomberg disagrees___10____ that valuation(估值). It said: "The idea that TikTok - without the UK, India or dozens of other emerging markets - is worth $50 billion today is fanciful.
D
There___1___(be) good news and bad news regarding the number of trees on our planet. The good news is that there are seven times more trees on Earth than we___2___(think). Until a few years ago, scientists estimated that the world had around 400 billion trees. However, a new study from Yale University estimates that there are around three trillion trees. That's a three followed by 12___3__(zero). That means there are more than 420 trees for every person alive today. Lead researcher Dr Thomas Crowther told the BBC that the new estimate will not change anything. He said: "It's not like we've discovered a load of new trees. It's not good news for the world or bad news that we've produced this new number."
The bad news is that___4___(thousand) of years ago, the earth had around six trillion trees. Human activity has cut in half the number of trees on the planet. A good example of this is the fact that Europe used ___5___(be) one giant forest. Now much of it is farmland, fields, cities and towns. Dr Crowther said people are responsible for the ____6___(lose) of three trillion trees over the past several thousand years. Humans are ___7___(destroy) around 15 billion more trees every year because___8___deforestation and the demand for farmland. The scientists said this figure is considerably___9___(high) than just a century ago. Dr Crowther warned that: "This study highlights how much more effort___10___(need) if we are to restore healthy forests worldwide."
E
Environmentalists are getting more___1___(worry) about the effects of fast fashion on the environment. Fast fashion is the mass production of clothes at a low cost. They are put in shops and online quickly to create a high demand. Manufacturers make 100 billion items of clothing every year. This____2___(expect) to grow by 60 per cent by 2030. The fast fashion business model is having a negative effect on the environment. Many of the clothes end up in landfills and are not recycled. Another negative effect on the environment ___3___(cause) by the chemicals used to make the clothes. These cause____4____(health) problems for people working in clothes factories. There are reports children make many of these clothes.
The way people are buying clothes is adding to the problem of clothing waste. Many years ago, people went to stores and tried clothes __5____. People took more time and thought ___6___(careful) before they bought clothes. They also___7___(wear) them for longer. Today, people order cheap clothes on the Internet.___8___ they don't like them, they send them back. Some people say this is causing a throwaway society. Some people buy clothes and never even wear them. The German media company Deutsche Welle wrote: "Every year in Europe, four___9___(million)tons of clothing ends up in the trash. ___10___(little) than one per cent of this is recycled." It seems the fashion industry is not so sustainable.
F
If you have trouble ___1___(sleep) at certain times of the month, it could be because ___2___a full moon. Scientists from the University of Washington say there is a link between the lunar cycle and sleeping patterns. They say that on nights when there is a full moon, people could experience more restless sleep. The reason ___3___this could be the Moon's changing brightness. When there is a full moon, the extra brightness in the night sky could interrupt our sleep. The scientists said: "Moonlight is so ___4____(bright)to the human eye that it is entirely reasonable to imagine that, in the absence of other sources of light, this source of nocturnal light could have had a role in ____5____(change) human nocturnal activity and sleep."
The scientists conducted a study of the sleep patterns of over 500 people. Each person wore a special wristband that tracked their sleep. The study included 98 people from_____6___isolated village in rural Argentina. These people did not have access to electricity and other artificial light sources. Their sleep patterns ____7____(compare) to 464 people living in U.S. city of Seattle, which has lots of artificial light pollution. The scientists discovered that people in the rural village and in the big city got___8____(little) sleep on the nights leading up to the full moon. The scientists ___9____(say) the artificial light in cities does not seem ____10___(affect) sleeping patterns and that, "human sleep is synchronised with lunar phases."
答案
A
1 to look 2 thousands 3 have tried 4 an 5 health
6 excited 7 be used 8 problems 9 more quickly 10 If
B
1 smallest 2 northern 3 length 4 thought 5 more
6 thirds 7 to survive 8 disappear 9 doesn’t slow 10 in
C
1 has been 2 Discussions 3 personal 4 Americans 5 changed
6 themselves 7 humorous 8 has 9 However 10 with
D
1 is 2 thought 3 zeros 4 thousands 5 to be
6 loss 7destroying 8 of 9 higher 10 is needed
E
1 worried 2 is expected 3 is caused 4 health 5 on
6 more carefully 7wore 8 If 9 million 10 Less
F
1 sleeping 2 of 3 for 4 bright 5 changing
6 an 7 were compared 8 less 9 said 10 to affect

展开更多......

收起↑